# Jameson J. McJunkin

> Jameson J. McJunkin is a startup investor at Madrone Capital Partners. See 0 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Madrone Capital Partners](https://shizune.co/investors/profile/madrone-capital-partners)
- Last updated: Aug 2026

Jameson J. McJunkin is a startup investor at Madrone Capital Partners. Mr. Jameson J. McJunkin, Jamie, M.B.A. is Founder and General Partner at Madrone Capital Partners, L.L.C. Mr. McJunkin leads Madrone's efforts in sustainability and alternative energy. Prior to Madrone, Mr. McJunkin was a technology growth capital investor at TA Associates He served as a Vice President at TA Associates Inc. He focuses onrecapitalizations and growth equity investments in communications, wireless, and infrastructure software investments. Previously, he served as a Product Manager at Cisco Systems, Inc. Mr. McJunkin served as an Associate and Strategy Consultant of Boston Consulting Group, Inc. He served as an Independent Consultant in Zaplet, and Kleiner, Perkins, Caulfield and Byers. He has been a Director at Solyndra, LLC. since September 2009. He has been a Director of Enphase Energy, Inc. since April 2009. He serves on the Advisory Board for Rockport Capital Partners and The Global Environment Fund. He serves on the Board of Directors of Achates Power Inc., MicroSeismic, Inc. and Fluidic Energy. Mr. McJunkin served as a Director at Eagle Test Systems, Inc. since October 2003. He is a Director of the Smithsonian National Air and Space Museum. Mr. McJunkin received his A.B., magna cum laude in Woodrow Wilson School of Public and International Affairs in 1996 from Princeton University. He also received his M.B.A. in 2000 from Stanford University Graduate School of Business, where he was an Arjay Miller Scholar.

## About Madrone Capital Partners

VC Fund · Menlo Park, United States

Madrone Capital Partners is a Private equity firm associated with Rob Walton, the eldest son of Walmart founder Sam Walton. It specializes in the fields of asset management, cleantech, and finance. It was founded in 2005 and headquartered in Menlo Park, California.

3 contacts available at Madrone Capital Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Greg Penner | Founder & General Partner | https://shizune.co/investors/profile/greg-penner |
| Jameson J. McJunkin | General Partner | https://shizune.co/investors/profile/jameson-j-mcjunkin |
| Thomas A. Patterson | Founder and Managing Partner | https://shizune.co/investors/profile/thomas-a-patterson |

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