Mainspring Energy provides power generation technology using linear generators for clean energy.
Mainspring Energy has raised $258.0M in total funding. The most recent round was Series F. The last funding was announced in April 2025.
Mainspring Energy's investors include Temasek, General Catalyst, Alumni Ventures, Khosla Ventures, Lightrock.
Mainspring Energy is headquartered in Menlo Park, United States.
Mainspring Energy provides power generation technology using linear generators for clean energy.
Mainspring Energy is at the Series F stage.
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"Mainspring Energy — Funding & Investors." VCBacked, April 14, 2025, https://www.vcbacked.co/company/mainspring-energy. Accessed July 21, 2026.
VCBacked. (2025). Mainspring Energy — Funding & Investors. Retrieved July 21, 2026, from https://www.vcbacked.co/company/mainspring-energy
{{cite web |title=Mainspring Energy — Funding & Investors |url=https://www.vcbacked.co/company/mainspring-energy |website=VCBacked |access-date=July 21, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated