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
How much has Adden Energy raised?
$20.1Macross 2 recorded rounds · Feb 2022 – Aug 2024

Most recently, Adden Energy raised $15.0M in its Early Stage VC (Aug 2024).

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Adden Energy round by round

2 rounds
Aug 2024Early Stage VC$15.0MSEC filing▮
4 investors participated
Feb 2022Early Stage VC$5.1MSEC filing▮
3 investors participated

How much has Adden Energy raised?

Adden Energy has raised $20.1 million across 2 recorded rounds since 2022. The largest was a $5.1 million early-stage round in Feb 2022; the most recent was a $15 million early-stage round in Aug 2024.

Adden Energy has filed 2 Form Ds with the SEC since 2022, most recently in Sep 2024 ($15 million sold to 4 investors).

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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Frequently asked about Adden Energy

How much has Adden Energy raised?
Adden Energy has raised $20.1M in total across 2 recorded funding rounds.
When was Adden Energy's last funding round?
Adden Energy's most recent recorded round was Early Stage VC in Aug 2024, raising $15.0M.