# First Street funding: rounds and investors

> First Street has raised $56M across 1 round since 2024. Investors include General Catalyst and Congruent Ventures. Every round with its source.

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

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

# Who invested in *First Street*

One round we have observed, with the 2 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.

Climate Tech

Funding summary Updated 26 Oct 2026

**$56M** raised across 1 round since 2024, from 1 source

- **Latest round:** Venture, $56M Mar 2024
- **Investors:** 2

See who backed them

## The rounds

- **Mar 2024** Venture **$56M** [General Catalyst](https://millionrounds.com/fund/general-catalyst) [Congruent Ventures](https://millionrounds.com/fund/congruent-ventures) Source recorded SEC filing: $33M sold, first sale Feb 2024

## Everyone who backed them

[General Catalyst](https://millionrounds.com/fund/general-catalyst) VC firm **1** round

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

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

## Also claim to have backed them

These 2 firms list First Street 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.

[Innovation Endeavors](https://millionrounds.com/fund/innovation-endeavors) VC firm Per its own site

[Keeling Capital](https://millionrounds.com/fund/keeling-capital) Fund of funds Per its own site

## Quick answers about First Street

### Who invested in First Street?

First Street's investors include General Catalyst and Congruent Ventures.

### How much has First Street raised?

First Street has raised $56M across 1 round since 2024.

### When did First Street last raise?

First Street's most recent round was a Venture of $56M in Mar 2024.

### What was First Street's biggest round?

Its most recent round, $56M in Mar 2024, is also its largest on record.

### Who backed First Street first?

First Street's first round on record, in Mar 2024, was backed by General Catalyst and Congruent Ventures.

### What stage is First Street at?

First Street's latest named round is a Venture, in Mar 2024.

### Where is First Street based?

First Street is based in the United States.

## Companies like First Street

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)[**ZwitterCo** $58M · Oct 2026](https://millionrounds.com/company/zwitterco)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Kodama** $7.0M · Oct 2026](https://millionrounds.com/company/kodama)[**Stand** $105M · Oct 2026](https://millionrounds.com/company/stand)

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