How much funding has Fourth Power raised?

Fourth Power has raised $39.0M in total funding, most recently a Series B round.

Who are Fourth Power's investors?

Fourth Power's investors include DCVC (Data Collab), Munich Re Ventures, Breakthrough Energy Ventures.

When was Fourth Power founded?

Fourth Power was founded in 2023.

Where is Fourth Power headquartered?

Fourth Power is headquartered in Cambridge, Massachusetts, United States.

What industry is Fourth Power in?

Fourth Power operates in Clean Energy, Climate Tech, Energy Storage.

How many employees does Fourth Power have?

Fourth Power has 1-10 employees.

Fourth Power

Cambridge, United States · Founded 2023 · $39.0M raised

Clean Energy

Climate Tech

Energy Storage

Headquarters: Cambridge, Massachusetts
Employees: 1–10
Founded: 2023
Business Model: B2B

Website: gofourth.com
Total Funding: $39.0M
Last Round: $20.0M Series BSep 2025
Rounds: 2

About

Develops utility-scale thermal energy storage using liquid metal and TPV to deliver low-cost, long-duration grid storage to utilities.

Summary

Fourth Power is a Clean Energy company based in Cambridge, United States, founded in 2023. It has raised $39.0M in total across 2 rounds, most recently a $20.0M Series B round in Sep 2025. Investors include DCVC (Data Collab), Munich Re Ventures and Breakthrough Energy Ventures.

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