ABOUT US

TortoiseEcofin Acquisition Corp. III (NYSE: TRTL) is a blank check company newly incorporated as a Cayman Islands exempted company for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses or entities. We intend to focus our search for a target business in the broad energy transition or sustainability arena targeting industries that require innovative solutions to decarbonize in order to meet critical emission reduction objectives.

Management

Vince Cubbage

Chief Executive Officer and Chairman

Mr. Cubbage has served as our Chief Executive Officer and as a Director since February 2021 and as Chairman of the Board of Directors since the completion of our Initial Public Offering in July 2021. Since July 2020, Mr. Cubbage has served as Chief Executive Officer, President and as a director of Tortoise Acquisition II, and as Chairman of the Tortoise Acquisition II Board since the completion of its initial public offering in September 2020. Mr. Cubbage served as Chief Executive Officer, President and as a director of Tortoise Acquisition I from November 2018, and as Chairman of the Tortoise Acquisition I Board from the completion of its initial public offering in March 2019, to the completion of its initial business combination with Hyliion on October 1, 2020, and he continues to serve on the board of directors of Hyliion Holdings Corp. He previously served as Managing Director — Private Energy of Tortoise Capital Advisors, L.L.C. and of Ecofin Investments, LLC from 2019 through July 2023. Mr. Cubbage served as the Chief Executive Officer and a member of the Board of Managers of Lightfoot Capital Partners GP LLC, the general partner of Lightfoot Capital Partners, LP, from its formation in 2006 through its wind up in December 2019. He served as Chief Executive Officer, Director and Chairman of the Board of Arc Logistics GP LLC, the general partner of Arc Logistics Partners LP (NYSE: ARCX), formerly a publicly-traded partnership engaged in the midstream business, from October 2013 to the date of its sale in December 2017. From 2007 to 2011, Mr. Cubbage also served on the board of managers of the general partner of International Resources Partners, LP, a private partnership founded by Lightfoot Capital that was engaged in the mining of natural resources. Prior to founding Lightfoot Capital, Mr. Cubbage was a Senior Managing Director and Head of the Midstream sector in the Investment Banking Division of Banc of America Securities from 1998 to 2006. Before joining Banc of America Securities, Mr. Cubbage was a Vice President at Salomon Smith Barney in the Global Energy and Power Group where he worked from 1994 to 1998. Mr. Cubbage received an M.B.A. from the American Graduate School of International Management and a B.A. from Eastern Washington University.

Stephen Pang

President, Chief Financial Officer

Mr. Pang has served as our President and Chief Financial Officer since February 2021. Mr. Pang has served as a director of Tortoise Acquisition II since the completion of its initial public offering in September 2020 and has served as the Chief Financial Officer of Tortoise Acquisition II since July 2020. Mr. Pang served as a director of Tortoise Acquisition I from the completion of its initial public offering in March 2019, and as Chief Financial Officer of Tortoise Acquisition I since January 2020, to the completion of its initial business combination on October 1, 2020, and he continues to serve on the board of directors of Hyliion Holdings Corp. Mr. Pang is a Managing Director and Portfolio Manager at Tortoise, and is responsible for Tortoise’s public and private direct investments across its energy strategies. He has served as a Managing Director of Tortoise Capital Advisors, L.L.C. since January 2019 and of Ecofin Investments, LLC since September 2020. Prior to joining Tortoise in 2014, Mr. Pang was a director in Credit Suisse Securities (USA) LLC’s Equity Capital Markets Group. Before joining Credit Suisse Securities (USA) LLC in 2012, he spent eight years in Citigroup Global Markets Inc.’s Investment Banking Division, where he focused on equity underwriting and corporate finance in the energy sector. Mr. Pang received a B.S. in Business Administration from the University of Richmond and is a CFA charterholder.

Evan Zimmer

Vice President, Finance

Mr. Zimmer has served as our Vice President of Finance since February 2021. Mr. Zimmer has served as Vice President of Finance of Tortoise Acquisition II since the completion of its initial public offering in September 2020, and as an Associate of Tortoise Capital Advisors, L.L.C. from January 2019 to September 2020 and supported the business combination activities of Tortoise Acquisition I. From September 2020 through July 2023, Mr. Zimmer served as Vice President – Private Energy of Tortoise Capital Advisors, L.L.C. and Ecofin Investments LLC. From April 2015 until February 2018, Mr. Zimmer served as an Associate of Lightfoot Capital Partners GP LLC, the general partner of Lightfoot Capital Partners, LP. Prior to joining Lightfoot Capital Partners GP LLC, Mr. Zimmer served as a Consultant in the Corporate Finance group at FTI Consulting, Inc. Mr. Zimmer received a Bachelor of Science degree in Business Administration from Bucknell University.

Directors

Vince Cubbage

Chief Executive Officer and Chairman

Mr. Cubbage has served as our Chief Executive Officer and as a Director since February 2021 and as Chairman of the Board of Directors since the completion of our Initial Public Offering in July 2021. Since July 2020, Mr. Cubbage has served as Chief Executive Officer, President and as a director of Tortoise Acquisition II, and as Chairman of the Tortoise Acquisition II Board since the completion of its initial public offering in September 2020. Mr. Cubbage served as Chief Executive Officer, President and as a director of Tortoise Acquisition I from November 2018, and as Chairman of the Tortoise Acquisition I Board from the completion of its initial public offering in March 2019, to the completion of its initial business combination with Hyliion on October 1, 2020, and he continues to serve on the board of directors of Hyliion Holdings Corp. He previously served as Managing Director — Private Energy of Tortoise Capital Advisors, L.L.C. and of Ecofin Investments, LLC from 2019 through July 2023. Mr. Cubbage served as the Chief Executive Officer and a member of the Board of Managers of Lightfoot Capital Partners GP LLC, the general partner of Lightfoot Capital Partners, LP, from its formation in 2006 through its wind up in December 2019. He served as Chief Executive Officer, Director and Chairman of the Board of Arc Logistics GP LLC, the general partner of Arc Logistics Partners LP (NYSE: ARCX), formerly a publicly-traded partnership engaged in the midstream business, from October 2013 to the date of its sale in December 2017. From 2007 to 2011, Mr. Cubbage also served on the board of managers of the general partner of International Resources Partners, LP, a private partnership founded by Lightfoot Capital that was engaged in the mining of natural resources. Prior to founding Lightfoot Capital, Mr. Cubbage was a Senior Managing Director and Head of the Midstream sector in the Investment Banking Division of Banc of America Securities from 1998 to 2006. Before joining Banc of America Securities, Mr. Cubbage was a Vice President at Salomon Smith Barney in the Global Energy and Power Group where he worked from 1994 to 1998. Mr. Cubbage received an M.B.A. from the American Graduate School of International Management and a B.A. from Eastern Washington University.

Thomas D. Hennessy

Director

Mr. Hennessy, age 38, has served as a Managing Partner of Growth Strategies of Hennessy Capital Group, LLC, an alternative investment firm founded in 2013 that focuses on investing in industrial, infrastructure, climate and real estate technologies. Mr. Hennessy has served as Chairman and Chief Executive Officer of two (NYSE: TWOA), a special purpose acquisition company, since March 2023. Mr. Hennessy has served as a director of Jaguar Global Growth Corporation I (Nasdaq: JGGC), a special purpose acquisition company targeting businesses operating primarily outside of the United States in the PropTech sector, since February 2021. Since December 2020, he has served as a director of 7GC & Co. Holdings Inc. (Nasdaq: VII), a special purpose acquisition company targeting the technology industry. Mr. Hennessy, in his role as Chairman, Co-Chief Executive Officer and President, has executed two successful SPAC business combinations, including (i) PropTech Acquisition Corporation’s business combination with Porch Group, Inc. (Nasdaq: PRCH) in 2020; and (ii) PropTech Investment Corporation II’s business combination with Appreciate Holdings, Inc. (Nasdaq: SFR) in 2022. Since 2021, Mr. Hennessy has also invested in numerous privately-held companies in his capacity as Managing Partner of Hennessy Capital Growth Partners, a growth equity fund that serves as a strategic capital and growth partner to real estate technology and climate technology companies. Mr. Hennessy served from 2014 to 2019 as a Portfolio Manager of Abu Dhabi Investment Authority. Mr. Hennessy holds a B.A. degree from Georgetown University and an M.B.A. from the University of Chicago Booth School of Business. Mr. Hennessy is qualified to serve as a director of the Company due to his extensive experience with special purpose acquisition companies and his expertise in mergers and acquisitions.

Jack Leeney

Independent Director

Jack Leeney will be one of our independent directors as of the effective date of the registration statement of which this prospectus forms a part. Since 2020 he has served as Chairman and CEO of 7GC & Co. Holdings (Nasdaq: VII) and TWO as an Independent Director. Since 2019 he has served as an independent director of PTAC (merged with Porch), and PTIC (merged with Appreciate). Since 2016, Mr. Leeney has served as a Co-Founder and Managing Partner of 7GC & Co., a growth stage venture capital firm. Mr. Leeney led the firm’s investments in Cheddar (sold to Altice USA, May 2019), Capsule Corp., hims & hers (IPO, January 2021, NYSE: HIMS), Roofstock, The Mom Project, Reliance Jio, Because Market, Jackpocket, and Moonfare. He currently serves on the board of directors of The Mom Project and Because Market.Between April 2011 and December 2016, Mr. Leeney served on the boards of directors of Quantenna Communications, Inc. (NASDAQ: QTNA), DoAt Media Ltd. (Private), CinePapaya (acquired by Comcast), Joyent (acquired by Samsung), BOKU, Inc. (AIM: BOKU), Eventful (acquired by CBS) and Blueliv (Private).Previously, Mr. Leeney served as the Head of U.S. Investing for Telefonica Ventures between June 2012 and September 2016, the investment arm of Telefonica (NYSE: TEF), served as an investor at Hercules Capital (NYSE: HTGC) between May 2011 and June 2012 and began his career as a technology-focused investment banker at Morgan Stanley in 2007.Mr. Leeney holds a B.S. from Syracuse University. Mr. Leeney is well qualified to serve as a director due to his extensive investment and advisory experience.

Matt Schindel

Independent Director

Mr. Schindel, age 37, has more than 15 years of experience as an investor and operator of growth companies, including more than a decade in climate and renewable energy related businesses. Since February 2020, he has served as Chief Financial Officer at Snapdocs, a real estate software company that provides automation solutions for Lenders, Title Companies, Notaries, and other participants in real-estate transactions. Prior to Snapdocs, Mr. Schindel held various executive roles at Sunrun, Inc., the nation’s leading residential solar, storage, and energy services company. Mr. Schindel holds a Bachelor’s Degree from Harvard College.

Drew Lipsher

Independent Director

Mr. Lipsher, age 57, has had a career that has spanned over thirty years of energy transition, media and entertainment, digital media, and technology. From June 2022 to March 2023, Mr. Lipsher was the Chief Development Officer of Volta, Inc. (NYSE: VLTA), and lead its sale to Shell (NYSE: SHEL) in March 2023. Mr. Lipsher previously served as the Chief Strategy Officer (from July 2016 to May 2022) and the Chief Revenue Officer (from July 2016 to November 2020) for Volta. Mr. Lipsher previously served as the Chief Revenue Officer at Glamsquad (a venture backed services business) and previously held senior leadership roles at Clear Channel Media Holdings, Interscope Geffen A&M Records, News Corporation, BMG Entertainment, and the Warner Music Group. From September 2006 to March 2011, Mr. Lipsher was also a Partner at Greycroft Partners, a venture capital firm and Maroley Media Group (media and digital media private equity). Mr. Lipsher began his career as one of the founders of the New Haven Brewing Company. Mr. Lipsher graduated with a B.A. in History from Yale University and received his MBA in finance from Northwestern’s Kellogg Graduate School of Management.