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Companies / Adden Energy

Adden Energy

Waltham, Massachusetts, United States

Adden Energy develops self-healing batteries for electric vehicles and other applications

EducationIndustrial & Manufacturing

Adden Energy, based in Waltham, Massachusetts, United States, has 2 investors on file, among them At One Ventures and Rhapsody Venture Partners. Its latest round on record is Series A, 5 Oct 2026. Its site was last checked 6 Nov 2026: site answers.

addenenergy.com

Funding

1 round on record
Latest roundSeries A5 Oct 2026
Since that round1 monthno later round on record
Oct 2026Series AInvestors not named

Round sizes and total raised are on Fundup AI, our sister product for funding data.

Investors

2 investors on file
InvestorEvidenceType
At One VenturesPortfolio pageVenture capital
Rhapsody Venture PartnersPortfolio pageVenture capital

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Its portfolio leans to AI & Machine Learning (22%), Industrial & Manufacturing (22%), Education (12%).

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16 companies on its checked portfolio

Its portfolio leans to Industrial & Manufacturing (25%), AI & Machine Learning (21%), Education (18%).

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See Rhapsody Venture Partners' full profile · Who invests alongside it

A company is shown only after its own site answers and carries its name. Sites are checked again on a schedule, because domains lapse and get bought. Round stages and dates come from Fundup AI; investor links come from portfolio pages and rounds; other facts name their source when you point at them. How we grade the data

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VCinfo API
$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/companies/addenenergy.com/investors

# also
GET /v1/companies/addenenergy.com
GET /v1/companies/addenenergy.com/news
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