# Adden Energy funding: rounds and investors

> Adden Energy has raised $32M across 2 rounds since 2024. Investors include MassVentures and At One Ventures. Every round with its source.

Source: https://millionrounds.com/company/adden-energy (Millionrounds; every figure on the page links to its filing or article)

United States · [Series A startup](https://millionrounds.com/companies)

# Who invested in *Adden Energy*

2 rounds we have observed, with the 2 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Energy

Raised 1 month ago

Funding summary Updated 26 Oct 2026

**$32M** raised across 2 rounds since 2024, from 2 sources

**$15M** Series A **$17M** Round

- **Latest round:** Round, $17M Oct 2026
- **Investors:** 2

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2025 2026

**$15M** Series A

**$17M** Round

- **First round:** Series A, $15M
- **Biggest round:** $17M
- **Between rounds:** 2.1 years

## The rounds

- **Oct 2026** Round **$17M** No investor was named in the report. Filed with the SEC (Form D); no report of this raise yet SEC filing: $17M sold, first sale Oct 2026
- **Sept 2024** Series A **$15M** *2 new* [MassVentures](https://millionrounds.com/fund/massventures) [At One Ventures](https://millionrounds.com/fund/at-one-ventures) Source recorded SEC filing: $15M sold, first sale Aug 2024

## Founders and team

From Adden Energy's own website: 5 on the team.

- **Kimberly Branson** VP Business Development
- **Bernard Lupien** Board Director
- **Knudt Flor** Board Director
- **Laurie Menoud** Board Director
- **Vinit Nijhawan** Board Obvserver

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Series A** 2024 **Round** 2026 [MassVentures](https://millionrounds.com/fund/massventures) [At One Ventures](https://millionrounds.com/fund/at-one-ventures)

## Everyone who backed them

[MassVentures](https://millionrounds.com/fund/massventures) VC firm **1** round

[At One Ventures](https://millionrounds.com/fund/at-one-ventures) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=adden-energy).

## Quick answers about Adden Energy

### Who invested in Adden Energy?

Adden Energy's investors include MassVentures and At One Ventures.

### How much has Adden Energy raised?

Adden Energy has raised $32M across 2 rounds since 2024.

### When did Adden Energy last raise?

Adden Energy's most recent round, $17M, was in Oct 2026.

### What was Adden Energy's biggest round?

Its most recent round, $17M in Oct 2026, is also its largest on record.

### Who backed Adden Energy first?

Adden Energy's first round on record, in Sept 2024, was backed by MassVentures and At One Ventures.

### What stage is Adden Energy at?

Adden Energy's latest named round is a Series A, in Sept 2024.

### Where is Adden Energy based?

Adden Energy is based in the United States.

## Companies like Adden Energy

In the same sector, and raised in the last eighteen months.

[**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)[**LanzaJet** $67M · Oct 2026](https://millionrounds.com/company/lanzajet)[**Pivot Energy** $500M · Oct 2026](https://millionrounds.com/company/pivot-energy)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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