# Sero funding: rounds and investors

> Sero has raised $500K across 1 round since 2022. Investors include Y Combinator. Every round with its source.

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

United States · [Pre-seed startup](https://millionrounds.com/companies)

# Who invested in *Sero*

One round we have observed, with the one investor 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.

Big Data & Analytics

Funding summary Updated 26 Oct 2026

**$500K** raised across 1 round since 2022, from 1 source

- **Latest round:** Pre-seed, $500K Jan 2022
- **Investors:** 1

See who backed them

## The rounds

- **Jan 2022** Pre-seed **$500K** [Y Combinator](https://millionrounds.com/fund/y-combinator) Source recorded

## Everyone who backed them

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

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

## Quick answers about Sero

### Who invested in Sero?

Sero's investors include Y Combinator.

### How much has Sero raised?

Sero has raised $500K across 1 round since 2022.

### When did Sero last raise?

Sero's most recent round was a Pre-seed of $500K in Jan 2022.

### What was Sero's biggest round?

Its most recent round, $500K in Jan 2022, is also its largest on record.

### Who backed Sero first?

Sero's first round on record, in Jan 2022, was backed by Y Combinator.

### What stage is Sero at?

Sero's latest named round is a Pre-seed, in Jan 2022.

### Where is Sero based?

Sero is based in the United States.

## Companies like Sero

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

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**STRIVE** $1.3B · Oct 2026](https://millionrounds.com/company/strive)[**Xona** $512M · Oct 2026](https://millionrounds.com/company/xona)[**DrizzleX** $9.1M · Oct 2026](https://millionrounds.com/company/drizzlex)[**Prism Data** $25M · Oct 2026](https://millionrounds.com/company/prism-data)[**Homa** $5.0M · Oct 2026](https://millionrounds.com/company/homa)

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