Founded in 2010, Mainspring Energy operates in energy. The stock is not listed on any public market.
Mainspring Energy has no published valuation.
LightrockLEAD
General CatalystLEAD
Khosla VenturesSShell VenturesAAmazon Climate Pledge Fund
DCVC
TemasekLightrockGeneral CatalystMainspring Energy designs and manufactures linear generators, converting fuel directly into electricity through a low-temperature, flameless reaction. It operates as a thermal power generation company developing linear generator technology that converts thermal energy from chemical or renewable fuels to electricity, serving Fortune 500 companies, data center developers, and utilities. Mainspring Energy is headquartered in Menlo Park, California.
Its Linear Generators are fully fuel flexible, operating on natural gas, biogas, propane, field gas, associated gas, or hydrogen, and qualify for a Federal Investment Tax Credit of 30% for projects.
Listed funds carry late-stage private names. A fund's latest schedule of investments shows whether it holds Mainspring Energy.
Often trade at a premium or discount to NAV.
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High minimums, transfer approval, company right-of-first-refusal.
Valuations, rounds and IPO status for every company in the directory — Mainspring Energy included.
The routes section explains what is realistically available for a company at this stage.
No. Mainspring Energy is a private company; its shares do not trade on a public exchange.
The closest energy peers are on the competitors page.
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