SEC Filing Document

Company: ERock, Inc.
Ticker: 
CIK: 2110029
Filing Type: S-1
Document Type: S-1
Date Filed: 2026-05-15
Accession Number: 0001193125-26-227199
Exchange: 
SIC Code: 3620
SIC Description: Electrical Industrial Apparatus
URL: https://www.sec.gov/Archives/edgar/data/2110029/000119312526227199/d12401ds1.htm

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holds a Bachelor of Science in Agricultural Economics and an MBA from the University of Missouri. Ian Blakely has served as ER Holdings’ Chief Financial Officer since June 2025, a role he previously held from October 2014 to April 2020. Mr. Blakely has served as Chief Financial Officer of ERock, Inc. since January 2026. Since joining ER Holdings in 2015, Mr. Blakely has held roles of increasing responsibility, including serving as ER Holdings’ Chief Strategy Officer from May 2022 to June 2025 and as Chief Technology Officer and Table of Contents Executive Vice President of Asset Management from April 2020 to May 2022. Before joining the Company, Mr. Blakely worked with venture capital and private equity funds specializing in energy, supporting teams in developing, commercializing and scaling technology businesses. Mr. Blakely holds a Bachelor of Science in Economics from Duke University and an MBA from MIT’s Sloan School of Management.

Paul Froutan has served as ER Holdings’ Chief Operating Officer since February 2024 and on the ER Holdings
board of managers since May 2025. Mr. Froutan has served as Chief Operating Officer of ERock, Inc. since January 2026. From May 2022 to February 2024, he served as ER Holdings’ Chief Technology Officer. Prior to joining ER Holdings, Mr.
Froutan served as Chief Financial Officer at Xenex Disinfection Services, a San Antonio, Texas-based developer and provider of ultraviolet light-based disinfection technologies for healthcare and other commercial environments, from January 2012
to September 2021. At Xenex, he also held the position of Chief Operating Officer from January 2012 to September 2020. Before Xenex, Mr. Froutan led Google’s Global Data Center Operations, overseeing the design, construction, and management of
its worldwide data centers and server infrastructure. Mr. Froutan holds a Bachelor of Science in Mechanical Engineering and an MBA from the University of Texas at Austin.

Davis Zapffe has served as ER Holdings’ General Counsel and Secretary since May 2025 and as General
Counsel and Secretary of ERock, Inc. since January 2026. From March 2024 to November 2024, he served as General Counsel of Arkon Energy, a digital infrastructure company, where he led all legal aspects of corporate transactions, including regulatory
and governance functions. From August 2021 to November 2023, he served as the General Counsel of Argo Blockchain, a bitcoin mining and technology company, where he played a leading role in that company’s successful initial public offering on
the Nasdaq and managed all of the company’s legal, regulatory and corporate governance functions. From September 2017 to September 2021, he served as Senior Counsel at Oasis Petroleum, a hydrocarbon exploration and hydraulic fracturing
company, where he advised on energy development, midstream, upstream, and oil and gas legal matters. Mr. Zapffe began his legal career as an Associate Attorney at Vinson & Elkins LLP. Mr. Zapffe holds a Bachelor of Science in Electrical
Engineering from the University of Texas at Austin and a Juris Doctor from the University of Houston.

Non-Employee Director Nominees

Charles Boynton is expected to serve as one of our directors upon completion of this offering. He has served as
Chief Financial Officer of Nextpower Inc. (Nasdaq: NXT, and formerly known as Nextracker Inc.), a leading provider of intelligent power generation technology and solutions for solar power plants, since May 2024. Prior to his appointment, Mr.
Boynton served on Nextpower’s board of directors, where he served as chair of the audit committee, from February of 2023 until March 2024. Mr. Boynton has more than 30 years of finance and accounting experience, as well as significant
experience in the solar industry. Prior to joining Nextpower, Mr. Boynton served as the Chief Financial Officer at Logitech, a global provider of personal computer and mobile accessories from February 2023 to May 2024. He also served as Executive
Vice President and Chief Financial Officer at Poly, a global provider of premium audio, video, and collaboration products and software from March 2019 until its acquisition by HP Inc. in October 2022. From June 2010 to July 2018, Mr. Boynton served
as Executive Vice President and Chief Financial Officer of SunPower Corporation, a U.S. solar technology and services provider, and from June 2015 to June 2018, he served as the Chief Executive Officer of 8point3 Energy Partners, a U.S.
growth-oriented solar energy partnership. Prior to 8point3, he served as the Chief Financial Officer of other public and private companies. Mr. Boynton holds a Bachelor of Science degree in Accounting from the Kelley School of Business at Indiana
University, Bloomington and an MBA in Finance and International Business from the Northwestern University Kellogg School of Management.

Mr. Boynton is qualified to serve on our board of directors due to his experience in finance and accounting leadership,
including serving as Chief Financial Officer of multiple public technology and solar energy companies and Chief Executive Officer of a publicly traded renewable energy partnership.

Dan Brouillette has served as a member of the ER Holdings board of managers since June 2025 and is expected to
serve as one of our directors upon completion of this offering. He currently serves as Partner and

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Co-Chair of the Torridon Group, a strategic advisory firm based in Washington, D.C. From October 2023 to January 2025, he served as Chief Executive Officer
and President of the Edison Electric Institute, a trade association representing investor-owned electric utility companies. From January 2021 to October 2023, he served as President of Sempra Infrastructure, a multinational firm specializing in the
construction and operation of liquefied natural gas (LNG) export terminals, pipeline networks, and renewable electricity generation facilities. Mr. Brouillette served as the 15th United States Secretary of Energy from December 2019 to January 2021
and previously served as Deputy Secretary of Energy from 2017 to 2019. Prior to his government service, Mr. Brouillette spent more than a decade working as a C-suite executive at the United States Automobile Association and Ford Motor Company.
Mr. Brouillette holds a Bachelor of Science degree in Economics from the University of Maryland, an MBA from Tulane University and an MA in Intelligence and National Security from The Citadel.

Mr. Brouillette is qualified to serve on our board of directors due to his leadership experience in energy policy and
infrastructure and his understanding of regulatory and power-market dynamics.

Hans Kobler has served as a
member of the ER Holdings board of managers since December 2024 and is expected to serve as one of our directors upon completion of this offering. He has served as Founder and a Managing Partner of Energy Impact Partners LP (“EIP”), a
global investment firm focused on energy transition technologies and our Sponsor, since June 2014. Mr. Kobler is a 25-year veteran of energy and climate technology investing. He started his career as a management consultant at Bain & Company
before leading the energy technology group at GE Equity, General Electric’s venture capital arm. Mr. Kobler went on to found and serve as Chief Executive Officer of Digital Power Capital, a venture capital fund focused on advanced power
technologies. He also built and led ICx Technologies, a leading sensor technology company targeting security, transportation, and energy, which went public on Nasdaq in 2007. Mr. Kobler holds a Master of Aerospace Engineering from the Technical
University of Munich, an MBA from the University of Texas at Austin, and attended the INSEAD MBA (SS) program.

Mr. Kobler is qualified to serve on our board of directors due to his experience investing in and scaling energy and
infrastructure technologies.

Lindsay Luger is a Co-Founder of EIP, a global investment firm focused on
energy transition technologies and our Sponsor, where she has served as Partner since October 2015. Ms. Luger has over a decade of experience investing in energy technology companies and serves on the boards of directors of several EIP portfolio
companies. Prior to joining EIP, Ms. Luger served as Vice President of Digital Power Capital from 2012 to 2015 and Vice President of Wexford Capital from 2007 to 2012, where she developed expertise across all aspects of technology investing,
including deal sourcing, analysis, due diligence, transaction structuring and portfolio oversight. She holds a Bachelor of Arts in Psychology from Columbia University.

Ms. Luger is qualified to serve on our board of directors due to her extensive experience investing in technology companies
focused on energy, power and sustainability.