# spotLESS Materials funding: rounds and investors

> spotLESS Materials has raised $900K across 1 round since 2021. Investors include Y Combinator, National Science Foundation and Pegasus Tech Ventures.

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

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

# Who invested in *spotLESS Materials*

One round we have observed, with the 3 investors named in it. 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

Y Combinator: S19

Funding summary Updated 26 Oct 2026

**$900K** raised across 1 round since 2021, from 1 source

- **Latest round:** Seed, $900K Dec 2021
- **Investors:** 3

See who backed them

## The rounds

- **Dec 2021** Seed **$900K** [Y Combinator](https://millionrounds.com/fund/y-combinator) [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Pegasus Tech Ventures](https://millionrounds.com/fund/pegasus-tech-ventures) Source recorded

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round

[National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **1** round

[Pegasus Tech Ventures](https://millionrounds.com/fund/pegasus-tech-ventures) VC firm **1** round

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

## Also claim to have backed them

This firm lists spotLESS Materials 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.

[1855 Capital](https://millionrounds.com/fund/1855-capital) VC firm Per its own site

## Quick answers about spotLESS Materials

### Who invested in spotLESS Materials?

spotLESS Materials's investors include Y Combinator, National Science Foundation and Pegasus Tech Ventures.

### How much has spotLESS Materials raised?

spotLESS Materials has raised $900K across 1 round since 2021.

### When did spotLESS Materials last raise?

spotLESS Materials's most recent round was a Seed of $900K in Dec 2021.

### What was spotLESS Materials's biggest round?

Its most recent round, $900K in Dec 2021, is also its largest on record.

### Who backed spotLESS Materials first?

spotLESS Materials's first round on record, in Dec 2021, was backed by Y Combinator, National Science Foundation and Pegasus Tech Ventures.

### What stage is spotLESS Materials at?

spotLESS Materials's latest named round is a Seed, in Dec 2021.

### Where is spotLESS Materials based?

spotLESS Materials is based in the United States.

## Companies like spotLESS Materials

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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