# ConnectDER funding: rounds and investors

> ConnectDER has raised $35M across 1 round since 2024. Investors include US Department of Energy, Elemental Impact and MassMutual Ventures.

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

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

# Who invested in *ConnectDER*

One round we have observed, with the 4 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Energy

Funding summary Updated 26 Oct 2026

**$35M** raised across 1 round since 2024, from 1 source

- **Latest round:** Series D, $35M Dec 2024
- **Investors:** 4

See who backed them

## The rounds

- **Dec 2024** Series D **$35M** [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) [Elemental Impact](https://millionrounds.com/fund/elemental-impact) [MassMutual Ventures](https://millionrounds.com/fund/massmutual-ventures) [Clean Energy Ventures](https://millionrounds.com/fund/clean-energy-ventures) Source recorded SEC filing: $35M sold, first sale Nov 2024

## Everyone who backed them

[US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) Government **1** round

[Elemental Impact](https://millionrounds.com/fund/elemental-impact) VC firm **1** round

[MassMutual Ventures](https://millionrounds.com/fund/massmutual-ventures) VC firm **1** round

[Clean Energy Ventures](https://millionrounds.com/fund/clean-energy-ventures) VC firm **1** round

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

## Also claim to have backed them

These 4 firms list ConnectDER as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[Clean Energy Venture](https://millionrounds.com/fund/clean-energy-venture-group) Angel network Per its own site

[Evergy Ventures](https://millionrounds.com/fund/evergy-ventures) Corporate VC Per its own site

[Skyview Ventures](https://millionrounds.com/fund/skyview-ventures) VC firm Per its own site

[Ground Squirrel Ventures](https://millionrounds.com/fund/ground-squirrel-ventures) VC firm Per its own site

## Quick answers about ConnectDER

### Who invested in ConnectDER?

ConnectDER's investors include US Department of Energy, Elemental Impact, MassMutual Ventures and Clean Energy Ventures.

### How much has ConnectDER raised?

ConnectDER has raised $35M across 1 round since 2024.

### When did ConnectDER last raise?

ConnectDER's most recent round was a Series D of $35M in Dec 2024.

### What was ConnectDER's biggest round?

Its most recent round, $35M in Dec 2024, is also its largest on record.

### Who backed ConnectDER first?

ConnectDER's first round on record, in Dec 2024, was backed by US Department of Energy, Elemental Impact and MassMutual Ventures and 1 others.

### What stage is ConnectDER at?

ConnectDER's latest named round is a Series D, in Dec 2024.

### Where is ConnectDER based?

ConnectDER is based in the United States.

## Companies like ConnectDER

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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