# Soteris funding: rounds and investors

> Soteris has raised $16M across 2 rounds since 2025. Investors include Y Combinator, DCVC and Amplify Partners. Every round with its source.

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

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

# Who invested in *Soteris*

2 rounds we have observed, with the 4 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

Raised 2 months ago Y Combinator: S19

Funding summary Updated 26 Oct 2026

**$16M** raised across 2 rounds since 2025, from 2 sources

**$8.0M** Venture **$8.0M** Seed

- **Latest round:** Seed, $8.0M Sept 2026
- **Investors:** 4

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

**$8.0M** Venture

**$8.0M** Seed

- **First round:** Venture, $8.0M
- **Biggest round:** $8.0M
- **Between rounds:** 14 months

## The rounds

- **Sept 2026** Seed **$8.0M** *3 new* *1 returning* [Y Combinator](https://millionrounds.com/fund/y-combinator) [DCVC](https://millionrounds.com/fund/data-collective) [Amplify Partners](https://millionrounds.com/fund/amplify-partners) [Clocktower Ventures](https://millionrounds.com/fund/clocktower-ventures) Source recorded
- **Jul 2025** Venture **$8.0M** *1 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) Source recorded SEC filing: $8.0M sold, first sale Jun 2025

## 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.

**Venture** 2025 **Seed** 2026 [Y Combinator](https://millionrounds.com/fund/y-combinator) [DCVC](https://millionrounds.com/fund/data-collective) [Amplify Partners](https://millionrounds.com/fund/amplify-partners) [Clocktower Ventures](https://millionrounds.com/fund/clocktower-ventures)

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **2** rounds

[DCVC](https://millionrounds.com/fund/data-collective) VC firm **1** round

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

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

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

## Also claim to have backed them

This firm lists Soteris 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.

[Webb Investment Network](https://millionrounds.com/fund/webb-investment-network) Family office Per its own site

## Quick answers about Soteris

### Who invested in Soteris?

Soteris's investors include Y Combinator, DCVC, Amplify Partners and Clocktower Ventures.

### How much has Soteris raised?

Soteris has raised $16M across 2 rounds since 2025.

### When did Soteris last raise?

Soteris's most recent round was a Seed of $8.0M in Sept 2026.

### What was Soteris's biggest round?

Its most recent round, $8.0M in Sept 2026, is also its largest on record.

### Who backed Soteris first?

Soteris's first round on record, in Jul 2025, was backed by Y Combinator.

### What stage is Soteris at?

Soteris's latest named round is a Seed, in Sept 2026.

### Where is Soteris based?

Soteris is based in the United States.

## Companies like Soteris

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)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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