# SewerAI funding: rounds and investors

> SewerAI has raised $15M across 2 rounds since 2024. Investors include Epic Ventures, Builders VC and JMI Equity. Every round with its source.

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

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

# Who invested in *SewerAI*

2 rounds we have observed, with the 5 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.

AI Construction

Raised 5 months ago

Funding summary Updated 26 Oct 2026

**$15M** raised across 2 rounds since 2024, from 3 sources

- **Latest round:** Growth Jun 2026
- **Led by:** JMI Equity
- **Biggest round:** $15M Series B · Jun 2024
- **Investors:** 5 (1 led)

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 B

**?** Growth

- **First round:** Series B, $15M
- **Biggest round:** $15M
- **Between rounds:** 2 years

## The rounds

- **Jun 2026** Growth **Amount undisclosed** *3 new* *2 returning* [JMI Equity](https://millionrounds.com/fund/jmi-equity) Lead [Epic Ventures](https://millionrounds.com/fund/epic-ventures-2) [Builders VC](https://millionrounds.com/fund/builders-vc) [Bentley Systems](https://millionrounds.com/fund/bentley-systems) [Innovius Capital](https://millionrounds.com/fund/innovius-capital) Reported by Suffolk Technologies and 1 other
- **Jun 2024** Series B **$15M** *2 new* [Epic Ventures](https://millionrounds.com/fund/epic-ventures-2) [Builders VC](https://millionrounds.com/fund/builders-vc) Source recorded

## Founders and team

From SewerAI's own website: 2 founders, 3 on the team.

**Billy Gilmartin** Co-CEO & Co-Founder

**Matt Rosenthal** Co-CEO & Co-Founder

- **Matthew Szymanski** Head of Finance
- **Sepehr Sobhani** VP of Engineering
- **Charles Coaxum** Board & Advisors

## 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 B** 2024 **Growth** 2026 [Epic Ventures](https://millionrounds.com/fund/epic-ventures-2) [Builders VC](https://millionrounds.com/fund/builders-vc) [JMI Equity](https://millionrounds.com/fund/jmi-equity) L [Bentley Systems](https://millionrounds.com/fund/bentley-systems) [Innovius Capital](https://millionrounds.com/fund/innovius-capital)

## Everyone who backed them

[Epic Ventures](https://millionrounds.com/fund/epic-ventures-2) VC firm **2** rounds

[Builders VC](https://millionrounds.com/fund/builders-vc) VC firm **2** rounds

[JMI Equity](https://millionrounds.com/fund/jmi-equity) Private equity **1** round, led 1

[Bentley Systems](https://millionrounds.com/fund/bentley-systems) Corporate VC **1** round

[Innovius Capital](https://millionrounds.com/fund/innovius-capital) Private equity **1** round

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

## Also claim to have backed them

This firm lists SewerAI as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[Suffolk Technologies](https://millionrounds.com/fund/suffolk-technologies) VC firm Per its own site

## Quick answers about SewerAI

### Who invested in SewerAI?

SewerAI's investors include Epic Ventures, Builders VC, JMI Equity, Bentley Systems and Innovius Capital. JMI Equity led its latest round.

### How much has SewerAI raised?

SewerAI has raised $15M across 2 rounds since 2024. One round did not disclose an amount, so the total is a floor.

### When did SewerAI last raise?

SewerAI's most recent round was a Growth in Jun 2026, led by JMI Equity.

### What was SewerAI's biggest round?

SewerAI's largest round on record is $15M (Series B), in Jun 2024.

### Who backed SewerAI first?

SewerAI's first round on record, in Jun 2024, was backed by Epic Ventures and Builders VC.

### What stage is SewerAI at?

SewerAI's latest named round is a Growth, in Jun 2026.

### Where is SewerAI based?

SewerAI is based in the United States.

### Who led SewerAI's rounds?

JMI Equity led the Growth in 2026.

## Companies like SewerAI

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

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)

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