Commonwealth Fusion
61 jobsSeries C+ · Devens, MA
Builds fusion energy systems.
$6.0B raisedFunded 7/30/2026
Quaise Energy
11 jobsSeries B · Cambridge, MA
Drills using millimeter waves.
$241.5M raisedFunded 7/7/2026
Form Energy
6 jobsSeries C+ · Somerville, MA
Builds iron-air batteries.
$2.1B raisedFunded 5/4/2026
Electrifies chemical manufacturing.
$62.1M raisedFunded 12/22/2025
Eden Geopower
5 jobsSeed · Somerville, MA
Modernizes resource recovery systems.
$19.8M raisedFunded 10/24/2023
Monitors battery quality in real time.
$17M raisedFunded 3/6/2025
How this list is built
BuildList includes active companies with a canonical sector and headquarters metro. Hiring counts come from verified openings collected directly from company applicant-tracking systems.