# Phosio Corporation funding: rounds and investors

> Phosio Corporation has raised $4.3M across 2 rounds since 2025. Investors include National Science Foundation and Elevate Capital. Every round with its source.

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

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

# Who invested in *Phosio Corporation*

2 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.

Chemicals & Materials

Raised 6 months ago

Funding summary Updated 26 Oct 2026

**$4.3M** raised across 2 rounds since 2025, from 2 sources

**$300K** Seed **$4.0M** Seed

- **Latest round:** Seed, $4.0M May 2026
- **Step-up i:** 13.3×
- **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.

2026

**$300K** Seed

**$4.0M** Seed

- **First round:** Seed, $300K
- **Biggest round:** $4.0M
- **Between rounds:** 7 months

## The rounds

- **May 2026** Seed **$4.0M** *2 returning* [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Elevate Capital](https://millionrounds.com/fund/elevate-capital) Source recorded SEC filing: $4.9M sold
- **Oct 2025** Seed **$300K** *2 new* [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Elevate Capital](https://millionrounds.com/fund/elevate-capital) Source recorded

## 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** 2025 **Seed** 2026 [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Elevate Capital](https://millionrounds.com/fund/elevate-capital)

## Everyone who backed them

[National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **2** rounds

[Elevate Capital](https://millionrounds.com/fund/elevate-capital) Private equity **2** rounds

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

## Quick answers about Phosio Corporation

### Who invested in Phosio Corporation?

Phosio Corporation's investors include National Science Foundation and Elevate Capital.

### How much has Phosio Corporation raised?

Phosio Corporation has raised $4.3M across 2 rounds since 2025.

### When did Phosio Corporation last raise?

Phosio Corporation's most recent round was a Seed of $4.0M in May 2026.

### What was Phosio Corporation's biggest round?

Its most recent round, $4.0M in May 2026, is also its largest on record.

### Who backed Phosio Corporation first?

Phosio Corporation's first round on record, in Oct 2025, was backed by National Science Foundation and Elevate Capital.

### What stage is Phosio Corporation at?

Phosio Corporation's latest named round is a Seed, in May 2026.

### Where is Phosio Corporation based?

Phosio Corporation is based in the United States.

## Companies like Phosio Corporation

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

[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**Albert** $57M · Oct 2026](https://millionrounds.com/company/albert)[**Azulene Labs** $3.4M · Sept 2026](https://millionrounds.com/company/azulene-labs)[**Critical Materials Group** $10M · Sept 2026](https://millionrounds.com/company/critical-materials-group)[**Rise Reforming** $500K · Sept 2026](https://millionrounds.com/company/rise-reforming)[**Fluxnium** $7.0M · Sept 2026](https://millionrounds.com/company/fluxnium)

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