# PosiGen funding: rounds and investors

> PosiGen has raised $320M across 3 rounds since 2019. Investors include SJF Ventures and GAF Energy. Every round with its source.

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

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

# Who invested in *PosiGen*

3 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.

Cleantech Energy Real Estate

Funding summary Updated 26 Oct 2026

**$320M** raised across 3 rounds since 2019, from 3 sources

**$20M** Round **$100M** Series E **$200M** Debt

- **Latest round:** Debt, $200M Dec 2024
- **Step-up i:** 2×
- **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.

2019 2020 2021 2022 2023 2024

**$20M** Round

**$100M** Series E

**$200M** Debt

- **First round:** Round, $20M
- **Biggest round:** $200M
- **Usual gap between rounds:** 2.9 years

## The rounds

- **Dec 2024** Debt **$200M** *1 new* [SJF Ventures](https://millionrounds.com/fund/sjf-ventures) Source recorded
- **Jan 2022** Series E **$100M** No investor was named in the report. Reported by Firms' own news pages
- **Apr 2019** Round **$20M** *1 new* GAF Energy Reported by Prnewswire

## Founders and team

From the SEC filings it signed: 1 on the team.

- **Thomas Neyhart** Executive Officer, Director i

On the board, as filed i *Ali Iz* *Harold Callais* *Margaret Anadu* *Michael Hammons* *Sasha Brown* *Scott Dupcak*

## 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.

**Round** 2019 **Series E** 2022 **Debt** 2024 [SJF Ventures](https://millionrounds.com/fund/sjf-ventures) GAF Energy

## Everyone who backed them

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

GAF Energy 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=posigen).

## Also claim to have backed them

This firm lists PosiGen 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.

[The Builders Fund](https://millionrounds.com/fund/the-builders-fund) Private equity Per its own site

## Quick answers about PosiGen

### Who invested in PosiGen?

PosiGen's investors include SJF Ventures and GAF Energy.

### How much has PosiGen raised?

PosiGen has raised $320M across 3 rounds since 2019.

### When did PosiGen last raise?

PosiGen's most recent round was a Debt of $200M in Dec 2024.

### What was PosiGen's biggest round?

Its most recent round, $200M in Dec 2024, is also its largest on record.

### Who backed PosiGen first?

PosiGen's first round on record, in Apr 2019, was backed by GAF Energy.

### What stage is PosiGen at?

PosiGen's latest named round is a Debt, in Dec 2024.

### Where is PosiGen based?

PosiGen is based in the United States.

## Companies like PosiGen

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)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**MARC** $5.0M · Oct 2026](https://millionrounds.com/company/marc)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)

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