# Thomas McAndrew

> Thomas McAndrew founded Enchanted Rock, now ERock, in 2006 and led it as CEO until June 2025. His background spans US Navy nuclear propulsion, commercial nuclear engineering and energy trading. He built a business combining onsite backup generation with electricity-market participation, serving customers including H-E-B and working on data-center power. He later moved into strategic advisory work; ERock’s 2026 prospectus provides for a non-voting board observer role.

- **Role:** Founder and non-voting board observer at ERock
- **Organizations:** ERock (formerly Enchanted Rock), US Navy, Southern Company, Enron, Statoil, Calpine, Progressive Power Solutions
- **Education:** Bachelor of Science in Mechanical Engineering, Texas A&M University, Master of Business Administration, Harvard Business School, Nuclear power operations training; company biography describes a master’s equivalent, US Navy
- **Known for:** Founded Enchanted Rock in 2006 and led it as CEO until June 2025., Qualified as a Naval Nuclear Chief Engineer for a Nimitz-class aircraft carrier., EY Entrepreneur Of The Year 2018, Gulf Coast Area, Technology category.

## Career timeline

- **Before 2006** — Served six years in US Navy nuclear propulsion engineering and operations aboard USS Eisenhower and USS South Carolina; subsequently worked at Southern Company’s Plant Farley.
- **Before 2006** — Held energy-sector roles including director at Enron, VP of West Power Trading at Statoil, VP of Trading and Risk Management at Calpine, and CEO at Progressive Power Solutions.
- **2006** — Founded Enchanted Rock.
- **2016** — Texas Microgrid joint venture planned 45 Houston-area microgrids with market revenues supporting the service model.
- **2017** — Led Enchanted Rock as its microgrids supported participating H-E-B and Buc-ee’s locations during Hurricane Harvey.
- **2018** — Received EY Entrepreneur Of The Year Gulf Coast Area award in the Technology category.
- **2022** — Enchanted Rock announced a Microsoft San Jose data-center backup microgrid contract.
- **2025-06** — Stepped down as CEO; transition announcement retained him as strategic advisor, deal originator and board member.
- **2026-04** — Entered a board observer agreement providing a non-voting role at ERock following the IPO, subject to ownership conditions.

## Achievements

- Founded Enchanted Rock in 2006 and led it as CEO until June 2025.
- Qualified as a Naval Nuclear Chief Engineer for a Nimitz-class aircraft carrier.
- EY Entrepreneur Of The Year 2018, Gulf Coast Area, Technology category.
- Led development of a microgrid service business combining customer backup generation and grid-market revenues.

## Latest updates

- **2026-08** — ERock’s quarterly filing lists the April 23, 2026 observer agreement with McAndrew among its exhibits.
- **2026-06** — The IPO prospectus describes his non-voting board observer role, conditional on McAndrew and affiliates retaining at least 5% of outstanding common stock.
- **2025-06** — Left the CEO role and moved into strategic advisory and deal-origination responsibilities.

## Links

- LinkedIn: https://www.linkedin.com/in/tmcandrew

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Profile page: https://yespress.io/thomas-mcandrew
Published by YesPress — https://yespress.io
Last updated: 2026-10-22