# Tank Utility funding: rounds and investors

> Tank Utility has raised $8.2M across 2 rounds since 2016. Investors include Serra Ventures, Bullpen Capital and Shorooq Partners. Every round with its source.

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

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

# Who invested in *Tank Utility*

2 rounds we have observed, with the 9 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 Oil & Gas

Funding summary Updated 26 Oct 2026

**$8.2M** raised across 2 rounds since 2016, from 2 sources

**$2.2M** Seed **$6.0M** Round

- **Latest round:** Round, $6.0M Feb 2019
- **Step-up i:** 2.7×
- **Investors:** 9

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.

2017 2018 2019

**$2.2M** Seed

**$6.0M** Round

- **First round:** Seed, $2.2M
- **Biggest round:** $6.0M
- **Between rounds:** 2.5 years

## The rounds

- **Feb 2019** Round **$6.0M** *7 new* [Serra Ventures](https://millionrounds.com/fund/serra-ventures) [Bullpen Capital](https://millionrounds.com/fund/bullpen-capital) [Shorooq Partners](https://millionrounds.com/fund/shorooq-partners) [Blue Fog](https://millionrounds.com/fund/blue-fog) Array Bullpen Capital/ Energy Generac Reported by FinSMEs SEC filing: $4.9M sold, first sale Dec 2018
- **Aug 2016** Seed **$2.2M** *2 new* [Energy Foundry](https://millionrounds.com/fund/energy-foundry) [Blue Fog Capital](https://millionrounds.com/fund/blue-fog-capital) Reported by FinSMEs SEC filing: $1.2M sold, first sale May 2016

## Founders and team

From the SEC filings it signed: 2 on the team.

- **Amos Epstein** Executive Officer, Director, Promoter i
- **Nicholas Mashburn** Director, Promoter i

On the board, as filed i *Harris Brody* *Sara Chamberlain*

## 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.

**Seed** 2016 **Round** 2019 [Serra Ventures](https://millionrounds.com/fund/serra-ventures) [Bullpen Capital](https://millionrounds.com/fund/bullpen-capital) [Shorooq Partners](https://millionrounds.com/fund/shorooq-partners) [Energy Foundry](https://millionrounds.com/fund/energy-foundry) [Blue Fog Capital](https://millionrounds.com/fund/blue-fog-capital) [Blue Fog](https://millionrounds.com/fund/blue-fog) Array Bullpen Capital/ Energy Generac

## Everyone who backed them

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

[Bullpen Capital](https://millionrounds.com/fund/bullpen-capital) VC firm **1** round

[Shorooq Partners](https://millionrounds.com/fund/shorooq-partners) VC firm **1** round

[Energy Foundry](https://millionrounds.com/fund/energy-foundry) VC firm **1** round

[Blue Fog Capital](https://millionrounds.com/fund/blue-fog-capital) VC firm **1** round

[Blue Fog](https://millionrounds.com/fund/blue-fog) VC firm **1** round

Array no record of our own yet **1** round

Bullpen Capital/ Energy no record of our own yet **1** round

Generac no record of our own yet **1** round

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

## Also claim to have backed them

This firm lists Tank Utility 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.

[MIT Alumni Angels Boston](https://millionrounds.com/fund/mit-alumni-angels-boston) Angel network Per its own site

## Quick answers about Tank Utility

### Who invested in Tank Utility?

Tank Utility's investors include Serra Ventures, Bullpen Capital, Shorooq Partners, Energy Foundry and Blue Fog Capital, and 4 more on record.

### How much has Tank Utility raised?

Tank Utility has raised $8.2M across 2 rounds since 2016.

### When did Tank Utility last raise?

Tank Utility's most recent round was an Undisclosed round of $6.0M in Feb 2019.

### What was Tank Utility's biggest round?

Its most recent round, $6.0M in Feb 2019, is also its largest on record.

### Who backed Tank Utility first?

Tank Utility's first round on record, in Aug 2016, was backed by Energy Foundry and Blue Fog Capital.

### What stage is Tank Utility at?

Tank Utility's latest named round is an Undisclosed round, in Feb 2019.

### Where is Tank Utility based?

Tank Utility is based in the United States.

## Companies like Tank Utility

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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