Mainspring Energy Funding & Investors

Menlo Park, CA

Onsite power generation for the net-zero carbon grid.

mainspringenergy.com

Total Amount Raised: $813,000,000

Mainspring Energy Funding Rounds

Series F
$258,000,000
Apr 13, 2025
Series F Investors
General Catalyst
Gates Frontier Fund
Marunouchi Innovation Partners
Pictet Group
Lightrock
LGT Group
Khosla Ventures
M&G
Temasek Holdings
DCVC
Climate Pledge Fund
Grant
$87,000,000
Oct 21, 2024
Grant Investors
Department Of Energy
Series E
$140,000,000
Sep 20, 2022
Series E Investors
Lightrock
Shell Ventures
Khosla Ventures
Fine Structure Venture
Hanwha Systems
Princeville Capital
CPP Investments
Bill Gates
Trog Hawley Capital
Series E
$150,000,000
May 23, 2022
Series E Investors
Lightrock
Bill Gates
Khosla Ventures
Princeville Capital
Lineage Ventures
Fine Structure Venture
Series D
$95,000,000
May 3, 2021
Series D Investors
Devonshire Investors
40 North Management
KCK
Equinor
Chevron
ClearSky
Bill Gates
American Electric Power
Princeville Capital
Khosla Ventures
Trog Hawley Capital
Alumni Ventures Group
Gates Frontier Fund
NextEra Energy
Series C
$83,000,000
Jan 23, 2018
Series C Investors
American Electric Power
Bill Gates
Khosla Ventures
Louis Bacon
KCK
Centrica Innovations
Equinor

Funding info provided by Diffbot.