| Vertical | Efficiency & Reduction |
| Subvertical | Generation |
| Country | United States |
| Last Funding Date | September 2022 |
| Latest Funding Type(s) | Later Stage VC |
| Investors | 40 North Ventures, Alumni Ventures, American Electric Power, Bill Gates, Canada Pension Plan Investment Board, Centrica, Chevron, Clearsky, Equinor Ventures, Fidelity, Fine Structure Ventures, Khosla Ventures, Lightrock, Shell Ventures |
| Total equity funding | $468M |
| Website | https://mainspringenergy.com/ |
| Additional company info | Mainspring Energy company tax, EIN & IRS information |
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Company Info
Mainspring Energy is engineering advanced technology by developing a prototype of a linear generator that converts fuel to electricity.
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