DMYI dMY Technology Group Inc III

Investor Updates September 2021Investor Updates September 2021

Cautionary Notes This presentation (“Presentation”) is for informational purposes only. This Presentation shall not constitute an Presentation to our “partners” or “partnerships” with technology companies, governmental entities, universities offer to sell, or the solicitation of an offer to buy, any securities, nor shall there be any sale of securities in any or others do not denote that our relationship with any such party is in a legal partnership form, but rather is a states or jurisdictions in which such offer, solicitation or sale would be unlawful. This Presentation has been generic reference to our contractual relationship with such party. prepared to assist interested parties in making their own evaluation with respect to a potential business Forward Looking Statements combination between IonQ, Inc. (“IonQ”) and dMY Technology Group, Inc. III (“dMY”) and the related transactions Certain statements included in this Presentation that are not historical facts are forward-looking statements for (the “Proposed Business Combination”) and for no other purpose. These materials are exclusively for the use of purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995. the party or the parties to whom they have been provided by representatives of IonQ and dMY. By accepting Forward-looking statements generally are accompanied by words such as “believe,” “may,” “will,” “estimate,” these materials, the recipient acknowledges and agrees that he, she or it (a) will maintain the information and “continue,” “anticipate,” “intend,” “expect,” “should,” “would,” “plan,” “predict,” “potential,” “seem,” “seek,” data contained herein in the strictest of confidence and will not, under any circumstances whatsoever, “future,” “outlook,” and similar expressions that predict or indicate future events or trends or that are not reproduce these materials, in whole or in part, or disclose any of the contents hereof or the information and data statements of historical matters. These forward-looking statements include, but are not limited to, statements contained herein to any other person without the prior written consent of IonQ or dMY, (b) is not subject to any regarding estimates and forecasts of other financial and performance metrics and projections of market contractual or other obligation to disclose these materials to any other person or entity, (c) will return these opportunity. These statements are based on various assumptions, whether or not identified in this Presentation, materials, and any other materials that the recipient may have received in the course of considering an and on the current expectations of the respective management of IonQ and dMY and are not predictions of investment in dMY and IonQ and (d) will promptly notify IonQ and dMY and their respective representatives of actual performance. These forward-looking statements are provided for illustrative purposes only and are not any unauthorized release, disclosure or use of these materials or the information and data contained herein. intended to serve as, and must not be relied on by an investor as, a guarantee, an assurance, a prediction or a Furthermore, all or a portion of the information contained in these materials may constitute material non-public definitive statement of fact or probability. Actual events and circumstances are difficult or impossible to predict information of IonQ, dMY and their affiliates, and other parties that may be referred to in the context of those and will differ from assumptions. Many actual events and circumstances are beyond the control of IonQ and discussions. By your acceptance of this Presentation, you acknowledge that applicable securities laws restrict a dMY. These forward-looking statements are subject to a number of risks and uncertainties, including changes in person from purchasing or selling securities of a person with tradeable securities from communicating such domestic and foreign business, market, financial, political, and legal conditions; the inability of the parties to information to any other person under circumstances in which it is reasonably foreseeable that such person is successfully or timely consummate the Proposed Business Combination, including the risk that any regulatory likely to purchase or sell such securities. approvals are not obtained, are delayed or are subject to unanticipated conditions that could adversely affect Certain information included herein describes or assumes the expected terms that will be included in the the combined company or the expected benefits of the Proposed Business Combination or that the approval of agreements to be entered into by the parties to the Proposed Business Combination. Such agreements are the stockholders of dMY or IonQ is not obtained; failure to realize the anticipated benefits of the Proposed under negotiation and subject to change. The consummation of the Proposed Business Combination is also Business Combination; risks relating to the uncertainty of the projected financial information with respect to subject to other various risks and contingencies, including customary closing conditions. There can be no IonQ; risks related to the performance of IonQ’s business and the timing of expected business or revenue assurance that the Proposed Business Combination will be consummated with the terms described herein or milestones; the effects of competition on IonQ’s business; the amount of redemption requests made by dMY’s otherwise. As such, the subject matter of these materials is evolving and us subject to further change by IonQ stockholders; the ability of dMY or IonQ to issue equity or equity-linked securities or obtain debt financing in and dMY in their joint and absolute discretion. connection with the Proposed Business Combination or in the future; and those factors discussed in dMY’s final prospectus that forms a part of dMY’s Registration Statement on Form S-4 (Reg. No. 333-254840), filed with the Neither the Securities and Exchange Commission nor any securities commission of any other U.S. or non-U.S. SEC pursuant to Rule 424(b)(3) on August 12, 2021 (the “Proxy Statement”) under the heading “Risk Factors,” jurisdiction has approved or disapproved of the Proposed Business Combination presented herein, or and other documents dMY has filed, or will file, with the SEC. If any of these risks materialize or our assumptions determined that this Presentation is truthful or complete. No representations or warranties, express or implied, prove incorrect, actual results could differ materially from the results implied by these forward-looking are given in, or in respect of, this Presentation. To the fullest extent permitted by law in no circumstances will statements. There may be additional risks that neither dMY nor IonQ presently know, or that dMY nor IonQ dMY, IonQ or any of their respective subsidiaries, stockholders, affiliates, representatives, directors, officers, currently believe are immaterial, that could also cause actual results to differ from those contained in the employees, advisers or agents be responsible or liable for a direct, indirect or consequential loss or loss of profit forward-looking statements. In addition, forward-looking statements reflect dMY’s and IonQ’s expectations, arising from the use of this Presentation, its contents, its omissions, reliance on the information contained plans, or forecasts of future events and views as of the date of this Presentation. dMY and IonQ anticipate that within it, or on opinions communicated in relation thereto or otherwise arising in connection therewith. Industry subsequent events and developments will cause dMY’s and IonQ’s assessments to change. However, while dMY and market data used in this Presentation have been obtained from third-party industry publications and and IonQ may elect to update these forward-looking statements at some point in the future, dMY and IonQ sources as well as from research reports prepared for other purposes. Neither dMY nor IonQ has independently specifically disclaim any obligation to do so. These forward-looking statements should not be relied upon as verified the data obtained from these sources and cannot assure you of the data’s accuracy or completeness. representing dMY’s and IonQ’s assessments of any date subsequent to the date of his Presentation. This data is subject to change. In addition, this Presentation does not purport to be all-inclusive or to contain all Accordingly, undue reliance should not be placed upon the forward-looking statements. of the information that may be required to make a full analysis of IonQ or the Proposed Business Combination. Viewers of this Presentation should each make their own evaluation of IonQ and of the relevance and adequacy of the information and should make such other investigations as they deem necessary. References in this 2Cautionary Notes This presentation (“Presentation”) is for informational purposes only. This Presentation shall not constitute an Presentation to our “partners” or “partnerships” with technology companies, governmental entities, universities offer to sell, or the solicitation of an offer to buy, any securities, nor shall there be any sale of securities in any or others do not denote that our relationship with any such party is in a legal partnership form, but rather is a states or jurisdictions in which such offer, solicitation or sale would be unlawful. This Presentation has been generic reference to our contractual relationship with such party. prepared to assist interested parties in making their own evaluation with respect to a potential business Forward Looking Statements combination between IonQ, Inc. (“IonQ”) and dMY Technology Group, Inc. III (“dMY”) and the related transactions Certain statements included in this Presentation that are not historical facts are forward-looking statements for (the “Proposed Business Combination”) and for no other purpose. These materials are exclusively for the use of purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995. the party or the parties to whom they have been provided by representatives of IonQ and dMY. By accepting Forward-looking statements generally are accompanied by words such as “believe,” “may,” “will,” “estimate,” these materials, the recipient acknowledges and agrees that he, she or it (a) will maintain the information and “continue,” “anticipate,” “intend,” “expect,” “should,” “would,” “plan,” “predict,” “potential,” “seem,” “seek,” data contained herein in the strictest of confidence and will not, under any circumstances whatsoever, “future,” “outlook,” and similar expressions that predict or indicate future events or trends or that are not reproduce these materials, in whole or in part, or disclose any of the contents hereof or the information and data statements of historical matters. These forward-looking statements include, but are not limited to, statements contained herein to any other person without the prior written consent of IonQ or dMY, (b) is not subject to any regarding estimates and forecasts of other financial and performance metrics and projections of market contractual or other obligation to disclose these materials to any other person or entity, (c) will return these opportunity. These statements are based on various assumptions, whether or not identified in this Presentation, materials, and any other materials that the recipient may have received in the course of considering an and on the current expectations of the respective management of IonQ and dMY and are not predictions of investment in dMY and IonQ and (d) will promptly notify IonQ and dMY and their respective representatives of actual performance. These forward-looking statements are provided for illustrative purposes only and are not any unauthorized release, disclosure or use of these materials or the information and data contained herein. intended to serve as, and must not be relied on by an investor as, a guarantee, an assurance, a prediction or a Furthermore, all or a portion of the information contained in these materials may constitute material non-public definitive statement of fact or probability. Actual events and circumstances are difficult or impossible to predict information of IonQ, dMY and their affiliates, and other parties that may be referred to in the context of those and will differ from assumptions. Many actual events and circumstances are beyond the control of IonQ and discussions. By your acceptance of this Presentation, you acknowledge that applicable securities laws restrict a dMY. These forward-looking statements are subject to a number of risks and uncertainties, including changes in person from purchasing or selling securities of a person with tradeable securities from communicating such domestic and foreign business, market, financial, political, and legal conditions; the inability of the parties to information to any other person under circumstances in which it is reasonably foreseeable that such person is successfully or timely consummate the Proposed Business Combination, including the risk that any regulatory likely to purchase or sell such securities. approvals are not obtained, are delayed or are subject to unanticipated conditions that could adversely affect Certain information included herein describes or assumes the expected terms that will be included in the the combined company or the expected benefits of the Proposed Business Combination or that the approval of agreements to be entered into by the parties to the Proposed Business Combination. Such agreements are the stockholders of dMY or IonQ is not obtained; failure to realize the anticipated benefits of the Proposed under negotiation and subject to change. The consummation of the Proposed Business Combination is also Business Combination; risks relating to the uncertainty of the projected financial information with respect to subject to other various risks and contingencies, including customary closing conditions. There can be no IonQ; risks related to the performance of IonQ’s business and the timing of expected business or revenue assurance that the Proposed Business Combination will be consummated with the terms described herein or milestones; the effects of competition on IonQ’s business; the amount of redemption requests made by dMY’s otherwise. As such, the subject matter of these materials is evolving and us subject to further change by IonQ stockholders; the ability of dMY or IonQ to issue equity or equity-linked securities or obtain debt financing in and dMY in their joint and absolute discretion. connection with the Proposed Business Combination or in the future; and those factors discussed in dMY’s final prospectus that forms a part of dMY’s Registration Statement on Form S-4 (Reg. No. 333-254840), filed with the Neither the Securities and Exchange Commission nor any securities commission of any other U.S. or non-U.S. SEC pursuant to Rule 424(b)(3) on August 12, 2021 (the “Proxy Statement”) under the heading “Risk Factors,” jurisdiction has approved or disapproved of the Proposed Business Combination presented herein, or and other documents dMY has filed, or will file, with the SEC. If any of these risks materialize or our assumptions determined that this Presentation is truthful or complete. No representations or warranties, express or implied, prove incorrect, actual results could differ materially from the results implied by these forward-looking are given in, or in respect of, this Presentation. To the fullest extent permitted by law in no circumstances will statements. There may be additional risks that neither dMY nor IonQ presently know, or that dMY nor IonQ dMY, IonQ or any of their respective subsidiaries, stockholders, affiliates, representatives, directors, officers, currently believe are immaterial, that could also cause actual results to differ from those contained in the employees, advisers or agents be responsible or liable for a direct, indirect or consequential loss or loss of profit forward-looking statements. In addition, forward-looking statements reflect dMY’s and IonQ’s expectations, arising from the use of this Presentation, its contents, its omissions, reliance on the information contained plans, or forecasts of future events and views as of the date of this Presentation. dMY and IonQ anticipate that within it, or on opinions communicated in relation thereto or otherwise arising in connection therewith. Industry subsequent events and developments will cause dMY’s and IonQ’s assessments to change. However, while dMY and market data used in this Presentation have been obtained from third-party industry publications and and IonQ may elect to update these forward-looking statements at some point in the future, dMY and IonQ sources as well as from research reports prepared for other purposes. Neither dMY nor IonQ has independently specifically disclaim any obligation to do so. These forward-looking statements should not be relied upon as verified the data obtained from these sources and cannot assure you of the data’s accuracy or completeness. representing dMY’s and IonQ’s assessments of any date subsequent to the date of his Presentation. This data is subject to change. In addition, this Presentation does not purport to be all-inclusive or to contain all Accordingly, undue reliance should not be placed upon the forward-looking statements. of the information that may be required to make a full analysis of IonQ or the Proposed Business Combination. Viewers of this Presentation should each make their own evaluation of IonQ and of the relevance and adequacy of the information and should make such other investigations as they deem necessary. References in this 2

Cautionary Notes (continued) Use of Projections This Presentation contains projected financial information. Such projected financial information constitutes forward-looking information, and is for illustrative purposes only and should not be relied upon as necessarily being indicative of future results. The assumptions and estimates underling such financial forecast information are inherently uncertain and are subject to a wide variety of significant business, economic, competitive, and other risks and uncertainties. See “Forward-Looking Statements” above. Actual results may differ materially from the results contemplated by the financial forecast information contained in this Presentation, and the inclusion of such information in this Presentation should not be regarded as a representation by any person that the results reflected in such forecasts will be achieved. Use of Data The data contained herein is derived from various internal and external sources. No representation is made as to the reasonableness of the assumptions made within or the accuracy or completeness of any projections or modeling or any other information contained herein. Any data on past performance or modeling contained herein is not an indication as to future performance. dMY and IonQ assume no obligation to update the information in this presentation. Use of Non-GAAP Financial Metrics and Other Key Financial Metrics This presentation includes certain non-GAAP financial measures (including on a forward-looking basis) such as EBITDA and EBITDA Margin. IonQ defines EBITDA as net income (loss), adjusted for for interest expense, depreciation and amortization, stock-based compensation and income taxes. EBITDA Margin is EBITDA divided by total revenue. These non-GAAP measures are an addition, and not a substitute for or superior to measures of financial performance prepared in accordance with GAAP and should not be considered as an alternative to net income, operating income or any other performance measures derived in accordance with GAAP. Reconciliations of non-GAAP measures to their most directly comparable GAAP counterparts are included in the Appendix to this presentation. IonQ believes that these non-GAAP measures of financial results (including on a forward-looking basis) provide useful supplemental information to investors about IonQ. IonQ’s management uses forward looking non-GAAP measures to evaluate IonQ’s projected financial and operating performance. However, there are a number of limitations related to the use of these non-GAAP measures and their nearest GAAP equivalents. For example other companies may calculate non-GAAP measures differently, or may use other measures to calculate their financial performance, and therefore IonQ’s non-GAAP measures may not be directly comparable to similarly titled measures of other companies. 3Cautionary Notes (continued) Use of Projections This Presentation contains projected financial information. Such projected financial information constitutes forward-looking information, and is for illustrative purposes only and should not be relied upon as necessarily being indicative of future results. The assumptions and estimates underling such financial forecast information are inherently uncertain and are subject to a wide variety of significant business, economic, competitive, and other risks and uncertainties. See “Forward-Looking Statements” above. Actual results may differ materially from the results contemplated by the financial forecast information contained in this Presentation, and the inclusion of such information in this Presentation should not be regarded as a representation by any person that the results reflected in such forecasts will be achieved. Use of Data The data contained herein is derived from various internal and external sources. No representation is made as to the reasonableness of the assumptions made within or the accuracy or completeness of any projections or modeling or any other information contained herein. Any data on past performance or modeling contained herein is not an indication as to future performance. dMY and IonQ assume no obligation to update the information in this presentation. Use of Non-GAAP Financial Metrics and Other Key Financial Metrics This presentation includes certain non-GAAP financial measures (including on a forward-looking basis) such as EBITDA and EBITDA Margin. IonQ defines EBITDA as net income (loss), adjusted for for interest expense, depreciation and amortization, stock-based compensation and income taxes. EBITDA Margin is EBITDA divided by total revenue. These non-GAAP measures are an addition, and not a substitute for or superior to measures of financial performance prepared in accordance with GAAP and should not be considered as an alternative to net income, operating income or any other performance measures derived in accordance with GAAP. Reconciliations of non-GAAP measures to their most directly comparable GAAP counterparts are included in the Appendix to this presentation. IonQ believes that these non-GAAP measures of financial results (including on a forward-looking basis) provide useful supplemental information to investors about IonQ. IonQ’s management uses forward looking non-GAAP measures to evaluate IonQ’s projected financial and operating performance. However, there are a number of limitations related to the use of these non-GAAP measures and their nearest GAAP equivalents. For example other companies may calculate non-GAAP measures differently, or may use other measures to calculate their financial performance, and therefore IonQ’s non-GAAP measures may not be directly comparable to similarly titled measures of other companies. 3

Quantum Computing Is Now, and IonQ Is Leading the Way $65B 2 TAM By 2030 Best Measured Large & Growing World-Class Investor Premier Partners & Performance in Market Opportunity Base (VC & PIPE) Customers 1 Industry Amazon Braket Q# QDK PENNYLANE Projecting 3x Increase Triple Expected Every Major Quantum Only Quantum in 2021 Contract Systems Online Language & SDK Hardware Available 3 Bookings Supported on All Major Clouds 1 Based on publicly-available data as of September 10, 2021 2 Prescient & Strategic Intelligence Private Limited, February 2020 3 Sales channels still being defined; exact nature and accounting recognition of IonQ revenue to be determined. Bookings may include prepayments, cloud-based revenue, and signed contracts for future performance. 44Quantum Computing Is Now, and IonQ Is Leading the Way $65B 2 TAM By 2030 Best Measured Large & Growing World-Class Investor Premier Partners & Performance in Market Opportunity Base (VC & PIPE) Customers 1 Industry Amazon Braket Q# QDK PENNYLANE Projecting 3x Increase Triple Expected Every Major Quantum Only Quantum in 2021 Contract Systems Online Language & SDK Hardware Available 3 Bookings Supported on All Major Clouds 1 Based on publicly-available data as of September 10, 2021 2 Prescient & Strategic Intelligence Private Limited, February 2020 3 Sales channels still being defined; exact nature and accounting recognition of IonQ revenue to be determined. Bookings may include prepayments, cloud-based revenue, and signed contracts for future performance. 44

Transaction Highlights Seasoned Transaction Partner Well-Structured, High-Value PIPE Premier Investment Base (VC+PIPE) $350M PIPE PIPE greatly exceeds cash required to reach profitability PIPE lock-up >6 months post listing 55Transaction Highlights Seasoned Transaction Partner Well-Structured, High-Value PIPE Premier Investment Base (VC+PIPE) $350M PIPE PIPE greatly exceeds cash required to reach profitability PIPE lock-up >6 months post listing 55

IonQ Momentum: Deal Announcement to Today June 2021 September 2021 IonQ Adds Integration with IonQ and University of Maryland Google Cirq, Making Systems Establish First-of-its-Kind Operable With All Major Quantum National Quantum Lab (Q-Lab) Software Frameworks May 2021 July 2021 September 2021 IonQ Launches Research IonQ Positions Itself for IonQ and Accenture Collaborate Credits Program To Continued Leadership With to Accelerate Quantum Support Pioneering Hires Including Chief Computing into the Enterprise Quantum Research People Officer Tom Jones 200% Projected Uplift For 2021 Total Contract 1 Bookings April 2021 June 2021 September 2021 IonQ’s Leading Systems IonQ’s Leading Hardware IonQ Triples Available Through IBM’s Becomes Only Available on Expectation for 2021 Qiskit SDK All Three Major Providers Contract Bookings August 2021 June 2021 IonQ Debuts Reconfigurable IonQ’s and Softbank Team Multicore Quantum Architecture, Up To Expand Quantum Opening Door for Dramatically Computing Access Globally More Powerful Systems Note IonQ timeline does not represent historic price performance. Transaction yet to close. 66 1 Sales channels still being defined; exact nature and accounting recognition of IonQ revenue to be determined. Bookings may include prepayments, cloud-based revenue, and signed contracts for future performance..IonQ Momentum: Deal Announcement to Today June 2021 September 2021 IonQ Adds Integration with IonQ and University of Maryland Google Cirq, Making Systems Establish First-of-its-Kind Operable With All Major Quantum National Quantum Lab (Q-Lab) Software Frameworks May 2021 July 2021 September 2021 IonQ Launches Research IonQ Positions Itself for IonQ and Accenture Collaborate Credits Program To Continued Leadership With to Accelerate Quantum Support Pioneering Hires Including Chief Computing into the Enterprise Quantum Research People Officer Tom Jones 200% Projected Uplift For 2021 Total Contract 1 Bookings April 2021 June 2021 September 2021 IonQ’s Leading Systems IonQ’s Leading Hardware IonQ Triples Available Through IBM’s Becomes Only Available on Expectation for 2021 Qiskit SDK All Three Major Providers Contract Bookings August 2021 June 2021 IonQ Debuts Reconfigurable IonQ’s and Softbank Team Multicore Quantum Architecture, Up To Expand Quantum Opening Door for Dramatically Computing Access Globally More Powerful Systems Note IonQ timeline does not represent historic price performance. Transaction yet to close. 66 1 Sales channels still being defined; exact nature and accounting recognition of IonQ revenue to be determined. Bookings may include prepayments, cloud-based revenue, and signed contracts for future performance..

PICTURED: IONQ-DEVELOPED CONTROL ELECTRONICS 01 Platform Updates 777PICTURED: IONQ-DEVELOPED CONTROL ELECTRONICS 01 Platform Updates 777

Only Quantum Hardware Available on All Major Clouds And still the only quantum hardware available on more than one... 8Only Quantum Hardware Available on All Major Clouds And still the only quantum hardware available on more than one... 8

The Only Hardware Available on All Major Quantum SDKs Support At Deal Announcement Support Today Downloads by Platform Downloads by Platform ETH Zurich ProjectQ ETH Zurich ProjectQ CQC Pytket CQC Pytket Xanadu Pennylane Xanadu Pennylane Amazon Braket Amazon Braket SDK SDK IBM Qiskit IBM Qiskit Microsoft Q# Microsoft Q# Google Cirq Google Cirq Does Not Support IonQ Hardware Supports IonQ Hardware Note: Downloads are for month of August, via PyPistats.org. Does not include Rigetti Pyquil or Dwave System which are SDKs specific to their providers’ hardware. 9The Only Hardware Available on All Major Quantum SDKs Support At Deal Announcement Support Today Downloads by Platform Downloads by Platform ETH Zurich ProjectQ ETH Zurich ProjectQ CQC Pytket CQC Pytket Xanadu Pennylane Xanadu Pennylane Amazon Braket Amazon Braket SDK SDK IBM Qiskit IBM Qiskit Microsoft Q# Microsoft Q# Google Cirq Google Cirq Does Not Support IonQ Hardware Supports IonQ Hardware Note: Downloads are for month of August, via PyPistats.org. Does not include Rigetti Pyquil or Dwave System which are SDKs specific to their providers’ hardware. 9

Bringing Quantum to Top Academic Institutions Research Credits Program builds relationships with academia and generates revenue from all three cloud partners • Researchers from Cambridge, UChicago, Harvard, MIT, Princeton, Oxford, and top institutions in Korea, the EU, Brazil, India and more • Research includes error correction, quantum machine learning; applications for chemistry, finance, pharmaceuticals, natural language processing and more • Program is fully funded by cloud partners, generating revenue for IonQ Sponsored Projects In Progress Funded by 59 10Bringing Quantum to Top Academic Institutions Research Credits Program builds relationships with academia and generates revenue from all three cloud partners • Researchers from Cambridge, UChicago, Harvard, MIT, Princeton, Oxford, and top institutions in Korea, the EU, Brazil, India and more • Research includes error correction, quantum machine learning; applications for chemistry, finance, pharmaceuticals, natural language processing and more • Program is fully funded by cloud partners, generating revenue for IonQ Sponsored Projects In Progress Funded by 59 10

PICTURED: IONQ-DEVELOPED CONTROL ELECTRONICS 02 Partnership Updates 11 11PICTURED: IONQ-DEVELOPED CONTROL ELECTRONICS 02 Partnership Updates 11 11

IonQ and Accenture Quantum Applications for the Modern Enterprise IonQ and Accenture are bringing quantum computing to global enterprises in a multi-year partnership that will leverage Accenture's go-to- market teams to broaden IonQ's customer reach 12 12IonQ and Accenture Quantum Applications for the Modern Enterprise IonQ and Accenture are bringing quantum computing to global enterprises in a multi-year partnership that will leverage Accenture's go-to- market teams to broaden IonQ's customer reach 12 12

IonQ and Fidelity Optimizing Asset Allocation, Electronic Trading and Pricing IonQ quantum computers are being used to explore multivariate machine learning techniques that could provide faster-to-train, more accurate models for portfolio management, electronic trading, asset pricing and more Quantum GAN Quantum CBM Target Distribution Classical GAN From training data After 20,000 Iterations After 1,000 Iterations After 26 Iterations For additional details: https://arxiv.org/abs/2109.06315 13 13IonQ and Fidelity Optimizing Asset Allocation, Electronic Trading and Pricing IonQ quantum computers are being used to explore multivariate machine learning techniques that could provide faster-to-train, more accurate models for portfolio management, electronic trading, asset pricing and more Quantum GAN Quantum CBM Target Distribution Classical GAN From training data After 20,000 Iterations After 1,000 Iterations After 26 Iterations For additional details: https://arxiv.org/abs/2109.06315 13 13

IonQ and Bulge Bracket Investment Bank Producing Superior Monte Carlo Simulations IonQ’s latest-generation system provided the first demonstration of quantum Monte Carlo simulation, paving the way for quantum enabled risk analysis and price simulation 14 14IonQ and Bulge Bracket Investment Bank Producing Superior Monte Carlo Simulations IonQ’s latest-generation system provided the first demonstration of quantum Monte Carlo simulation, paving the way for quantum enabled risk analysis and price simulation 14 14

IonQ and Softbank International Go-To-Market Partnership IonQ is helping Softbank bring quantum advantage to its broad portfolio 15 15IonQ and Softbank International Go-To-Market Partnership IonQ is helping Softbank bring quantum advantage to its broad portfolio 15 15

IonQ and University of Maryland Q-Lab: The First Commercial-Grade Quantum User Facility UMD has signed a multi-year, multi-million dollar contract to gain access to IonQ’s commercial-grade quantum compute services as part of the Q-Lab The state-of-the-art facility will provide UMD students and researchers with unprecedented access to IonQ hardware and expertise 16 16IonQ and University of Maryland Q-Lab: The First Commercial-Grade Quantum User Facility UMD has signed a multi-year, multi-million dollar contract to gain access to IonQ’s commercial-grade quantum compute services as part of the Q-Lab The state-of-the-art facility will provide UMD students and researchers with unprecedented access to IonQ hardware and expertise 16 16

IonQ and South Korea’s Q Center Research and Educational Alliance IonQ is enabling researchers, scientists, and students at Sungkyunkwan University and across South Korea to learn, develop, and deploy quantum applications on the world's leading quantum systems 17 17IonQ and South Korea’s Q Center Research and Educational Alliance IonQ is enabling researchers, scientists, and students at Sungkyunkwan University and across South Korea to learn, develop, and deploy quantum applications on the world's leading quantum systems 17 17

IonQ’s Partner Roster Validates Its Position As Industry Leader 18IonQ’s Partner Roster Validates Its Position As Industry Leader 18

IonQ Projects 3x Increase in 2021 Contract Bookings Summary Forecasted Financial Data ($M) Key Drivers & Commentary $70 IonQ is now projecting triple the amount of total contract bookings for 2021 from $60 $60 the previously announced target of $5 million. $50 IonQ believes this anticipated commercial success demonstrates the $40 real and rapidly accelerating need for $34 quantum computing and cements $30 IonQ's leadership position in quantum computing. $15 $20 $15 $5 IonQ anticipates these bookings to generate recognized revenue over the $1 0 next 36 months. $0 2021E 2022E 2023E 2024E 1 Bookings 1 Sales channels still being defined; exact nature and accounting recognition of IonQ revenue to be determined. Bookings may include prepayments, cloud- based revenue, and signed contracts for future performance.. Note Prepared on the basis of certain technical, market, competitive and other assumptions to be subsequently described in further detail, and which may 19 not be satisfied. As a result, these projections are subject to a high degree of uncertainty and may not be achieved within the time-frames described or at all.IonQ Projects 3x Increase in 2021 Contract Bookings Summary Forecasted Financial Data ($M) Key Drivers & Commentary $70 IonQ is now projecting triple the amount of total contract bookings for 2021 from $60 $60 the previously announced target of $5 million. $50 IonQ believes this anticipated commercial success demonstrates the $40 real and rapidly accelerating need for $34 quantum computing and cements $30 IonQ's leadership position in quantum computing. $15 $20 $15 $5 IonQ anticipates these bookings to generate recognized revenue over the $1 0 next 36 months. $0 2021E 2022E 2023E 2024E 1 Bookings 1 Sales channels still being defined; exact nature and accounting recognition of IonQ revenue to be determined. Bookings may include prepayments, cloud- based revenue, and signed contracts for future performance.. Note Prepared on the basis of certain technical, market, competitive and other assumptions to be subsequently described in further detail, and which may 19 not be satisfied. As a result, these projections are subject to a high degree of uncertainty and may not be achieved within the time-frames described or at all.

PICTURED: TEST OPTICS IN R&D LAB 03 Technology Updates 20 20PICTURED: TEST OPTICS IN R&D LAB 03 Technology Updates 20 20

IonQ Executes on Research-Validated Scaling Strategy High-Performance Reconfigurable Integration & Photonic Ion Trap & QPU Multicore Reduction of Interconnect Technology Architecture Footprint Technology High-speed, high-fidelity New Trap Technology (EGT) Reconfigurable Multicore Mini-UHV Technology photonic interface Quantum Architecture Rack-mount Lasers Increased Qubit Count (RMQA) Multi-QPU Entanglement Rack-mount QPUs Multiple Compute Zones Reconfigurable qubit Optical Cross-connect addressing technology Integrated Optics Multilayer Trap Technology Fully-connected Modular Sympathetic Cooling Photonic Integrated Circuits Integrated Electronics Architecture Partial Measurements Faster Quantum Gates Quantum Error Correction Additional Cores Parallel Computation Integrated into IonQ Hardware Demonstrated in Academic Research 21IonQ Executes on Research-Validated Scaling Strategy High-Performance Reconfigurable Integration & Photonic Ion Trap & QPU Multicore Reduction of Interconnect Technology Architecture Footprint Technology High-speed, high-fidelity New Trap Technology (EGT) Reconfigurable Multicore Mini-UHV Technology photonic interface Quantum Architecture Rack-mount Lasers Increased Qubit Count (RMQA) Multi-QPU Entanglement Rack-mount QPUs Multiple Compute Zones Reconfigurable qubit Optical Cross-connect addressing technology Integrated Optics Multilayer Trap Technology Fully-connected Modular Sympathetic Cooling Photonic Integrated Circuits Integrated Electronics Architecture Partial Measurements Faster Quantum Gates Quantum Error Correction Additional Cores Parallel Computation Integrated into IonQ Hardware Demonstrated in Academic Research 21

EGT Series Traps Pave the Way for Future Scale Patent-pending Evaporated Glass Trap technology enables breakthrough achievements: • greater stability • precise control • higher qubit count 22 22EGT Series Traps Pave the Way for Future Scale Patent-pending Evaporated Glass Trap technology enables breakthrough achievements: • greater stability • precise control • higher qubit count 22 22

Reprogrammable Multicore Quantum Architecture Industry first creates potential for large numbers of qubits and dramatically more powerful quantum computers 23Reprogrammable Multicore Quantum Architecture Industry first creates potential for large numbers of qubits and dramatically more powerful quantum computers 23

Ahead of Projections in System Manufacturing 2021 2022 2023 2024 2025 2026 PIPE Projection In Service Note: Online systems include systems built in previous years and carried forward. Expected system lifetime is dependent on demand and technological advancement. 24Ahead of Projections in System Manufacturing 2021 2022 2023 2024 2025 2026 PIPE Projection In Service Note: Online systems include systems built in previous years and carried forward. Expected system lifetime is dependent on demand and technological advancement. 24

PICTURED: IONQ HARDWARE 04 Industry Updates 25 25PICTURED: IONQ HARDWARE 04 Industry Updates 25 25

Quantum Computing Is the Next Space Race Joe Biden Angela Merkel Emmanuel Macron Amanda Solloway President of The United States of Chancellor of Germany President of France Science Minister, UK America We’re going to invest in … the As far as research into Quantum strategy is of Artificial intelligence and “ “ “ “ industries of the future— quantum technologies is paramount importance … quantum computing have the artificial intelligence, quantum concerned, Germany is among Quantum technologies are potential to revolutionize computing, biotech. And we’re the best of the world, and we among the few keys to the everything from the way we going to make real investments. intend to remain amongst the future that France absolutely travel to the way we shop. best of the world. must have in hand. 26Quantum Computing Is the Next Space Race Joe Biden Angela Merkel Emmanuel Macron Amanda Solloway President of The United States of Chancellor of Germany President of France Science Minister, UK America We’re going to invest in … the As far as research into Quantum strategy is of Artificial intelligence and “ “ “ “ industries of the future— quantum technologies is paramount importance … quantum computing have the artificial intelligence, quantum concerned, Germany is among Quantum technologies are potential to revolutionize computing, biotech. And we’re the best of the world, and we among the few keys to the everything from the way we going to make real investments. intend to remain amongst the future that France absolutely travel to the way we shop. best of the world. must have in hand. 26

National Investment in Quantum Continues to Grow Quantum Canada: CA$1.36b = $1.1b United Kingdom: £$1b = $1.3b Netherlands: 756m € = $904m Germany: 2.5b € = $3.1b China: $10b Russia: ₽50b = $663m South Korea: ₩44.5b = $37m Japan: ¥50b = $470m Singapore: S$150m = $109m Taiwan: NT$8b = $282m Australia: AU$130m = $98.5m New Zealand: $36.75m India: ₹73b= $1bn France: 1.8b € = $2.2b Global National Investment Austria: 107m € = 127m 2016–2021 (est.) Israel: 1.2₪b= $380m European Quantum Flagship: 1b € = $1.1b $24.2B US National Quantum Initiative: $1.2b 27 Source: Adapted from Overview on quantum initiatives worldwide, July 2021, QURECA Ltd.National Investment in Quantum Continues to Grow Quantum Canada: CA$1.36b = $1.1b United Kingdom: £$1b = $1.3b Netherlands: 756m € = $904m Germany: 2.5b € = $3.1b China: $10b Russia: ₽50b = $663m South Korea: ₩44.5b = $37m Japan: ¥50b = $470m Singapore: S$150m = $109m Taiwan: NT$8b = $282m Australia: AU$130m = $98.5m New Zealand: $36.75m India: ₹73b= $1bn France: 1.8b € = $2.2b Global National Investment Austria: 107m € = 127m 2016–2021 (est.) Israel: 1.2₪b= $380m European Quantum Flagship: 1b € = $1.1b $24.2B US National Quantum Initiative: $1.2b 27 Source: Adapted from Overview on quantum initiatives worldwide, July 2021, QURECA Ltd.

Private Investment in Quantum Continues to Grow Capital Invested in Quantum Computing Companies ($B) $2.5 $2.0 $1 .5 $1 .0 $0.5 $0.0 2014 2015 2016 2017 2018 2019 2020 2021 Source: Pitchbook via The Information Note: Totals are through July 2021 28Private Investment in Quantum Continues to Grow Capital Invested in Quantum Computing Companies ($B) $2.5 $2.0 $1 .5 $1 .0 $0.5 $0.0 2014 2015 2016 2017 2018 2019 2020 2021 Source: Pitchbook via The Information Note: Totals are through July 2021 28

Quantum Computing Is Now, and IonQ Is Leading the Way $65B 2 TAM By 2030 Best Measured Large & Growing World-Class Investor Premier Partners & Performance in Market Opportunity Base (VC & PIPE) Customers 1 Industry Amazon Braket Q# QDK PENNYLANE Projecting 3x Increase Triple Expected Every Major Quantum Only Quantum in 2021 Contract Systems Online Language & SDK Hardware Available 3 Bookings Supported on All Major Clouds 1 Based on publicly-available data as of September 10, 2021 2 Prescient & Strategic Intelligence Private Limited, February 2020 3 Sales channels still being defined; exact nature and accounting recognition of IonQ revenue to be determined. Bookings may include prepayments, cloud-based revenue, and signed contracts for future performance. 29 29Quantum Computing Is Now, and IonQ Is Leading the Way $65B 2 TAM By 2030 Best Measured Large & Growing World-Class Investor Premier Partners & Performance in Market Opportunity Base (VC & PIPE) Customers 1 Industry Amazon Braket Q# QDK PENNYLANE Projecting 3x Increase Triple Expected Every Major Quantum Only Quantum in 2021 Contract Systems Online Language & SDK Hardware Available 3 Bookings Supported on All Major Clouds 1 Based on publicly-available data as of September 10, 2021 2 Prescient & Strategic Intelligence Private Limited, February 2020 3 Sales channels still being defined; exact nature and accounting recognition of IonQ revenue to be determined. Bookings may include prepayments, cloud-based revenue, and signed contracts for future performance. 29 29

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