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
What is Adden Energy worth?
$45.0Mlast known valuation

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

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Adden Energy funding history

2 rounds
DateRoundRaisedPost-money
Aug 2024Early Stage VC$15.0M▮
Feb 2022Early Stage VC$5.1M▮
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Adden Energy valuation

Adden Energy's last known valuation is $45 million. The figure stands until a priced round, a secondary trade or an institutional fund mark prices the stock again.

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).

How Adden Energy's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Adden Energy, too few pricing signals exist to publish a composite mark; the figures above reflect the most recent observed valuation event. Full methodology →

Frequently asked about Adden Energy

What is Adden Energy worth?
Adden Energy's last known valuation is $45.0M.
How much has Adden Energy raised?
Adden Energy has raised $20.1M in total funding across 2 recorded rounds.
When did Adden Energy last raise?
Adden Energy last raised in Aug 2024 (Early Stage VC), raising $15.0M.