Adden Energy

Waltham, MA · Founded 2021 · Privately Held (backing)

Developer a solid-state battery to demonstrate charge times and capacity retention over long cycles. Adden Energy is based in Waltham, MA and was founded in 2021. Its last known valuation is $45 million. It has raised $20.1 million across 2 recorded rounds; the latest was a $15 million early-stage round in Aug 2024.

Last price · $/share
—
Implied valuation
$45.0M
Total raised
$20.1M
Last round
Early Stage VC
Aug 2024

Who backs Adden Energy?

7 investors
InvestorType
US National Science FoundationOther
MassVenturesOther
At One VenturesVenture capital
Harvard UniversityOther
Primavera Capital GroupGrowth equity
Primavera Venture Partners—
Rhapsody Venture Partners—
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Adden Energy investors

7 investors are on record for Adden Energy, including US National Science Foundation, MassVentures, At One Ventures and Harvard University. The early-stage round in Aug 2024 drew 4 investors.

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