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About
John Rockwell is a Venture Partner at Tramway Venture Partners with a background in physics and engineering. He served as an officer in the US Air Force working on R&D for large laser systems, landing gear, and cryogenic coolers, and later became an executive at Chromex, a manufacturer of Raman spectrometers. He subsequently spent about two decades running Marpac, a medical device manufacturer, and Sierra Peaks, an engineering firm, both of which he recently sold.
Deals · 4
Orbion SpaceBoard seat
via Tramway Venture Partners · filed Dec 2025 · $37.1M raise
FrostCarbonBoard seat
via Tramway Venture Partners · filed Sep 2025 · $2.3M raise
Carbon Capture AmericaBoard seat
via Tramway Venture Partners · filed Mar 2020 · $4M raise
HiQ SolarBoard seat
via Tramway Venture Partners · filed Sep 2015 · $11.1M raise
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at Tramway Venture Partners
Frequently asked questions
- Who is John Rockwell?
- John Rockwell is a Venture Partner at Tramway Venture Partners with a background in physics and engineering. He served as an officer in the US Air Force working on R&D for large laser systems, landing gear, and cryogenic coolers, and later became an executive at Chromex, a manufacturer of Raman spectrometers. He subsequently spent about two decades running Marpac, a medical device manufacturer, and Sierra Peaks, an engineering firm, both of which he recently sold.
- Where does John Rockwell work?
- John Rockwell is Venture Partner at Tramway Venture Partners.
- What boards does John Rockwell sit on?
- John Rockwell holds tracked board seats at Carbon Capture America, FrostCarbon, HiQ Solar, Orbion Space.
About this profile. Compiled from public sources — Tramway Venture Partners's own website, regulatory filings and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights