# PreFlight funding: rounds and investors

> PreFlight has raised $2.1M across 1 round since 2021. Investors include Y Combinator, Hyde Park Venture Partners and M25. Every round with its source.

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

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

# Who invested in *PreFlight*

One round we have observed, with the 4 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.

Developer Tools

Y Combinator: W19

Funding summary Updated 26 Oct 2026

**$2.1M** raised across 1 round since 2021, from 1 source

- **Latest round:** Seed, $2.1M Apr 2021
- **Investors:** 4

See who backed them

## The rounds

- **Apr 2021** Seed **$2.1M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Hyde Park Venture Partners](https://millionrounds.com/fund/hyde-park-venture-partners) [M25](https://millionrounds.com/fund/m25) [Grand Ventures](https://millionrounds.com/fund/grand-ventures) Source recorded

## Everyone who backed them

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

[Hyde Park Venture Partners](https://millionrounds.com/fund/hyde-park-venture-partners) VC firm **1** round

[M25](https://millionrounds.com/fund/m25) VC firm **1** round

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

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

## Quick answers about PreFlight

### Who invested in PreFlight?

PreFlight's investors include Y Combinator, Hyde Park Venture Partners, M25 and Grand Ventures.

### How much has PreFlight raised?

PreFlight has raised $2.1M across 1 round since 2021.

### When did PreFlight last raise?

PreFlight's most recent round was a Seed of $2.1M in Apr 2021.

### What was PreFlight's biggest round?

Its most recent round, $2.1M in Apr 2021, is also its largest on record.

### Who backed PreFlight first?

PreFlight's first round on record, in Apr 2021, was backed by Y Combinator, Hyde Park Venture Partners and M25 and 1 others.

### What stage is PreFlight at?

PreFlight's latest named round is a Seed, in Apr 2021.

## Companies like PreFlight

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

[**Ollama** $65M · Jul 2026](https://millionrounds.com/company/ollama)[**Entire** $60M · Feb 2026](https://millionrounds.com/company/entire)[**Wootz.work** $6.6M · Feb 2026](https://millionrounds.com/company/wootz-work)[**Runware** $50M · Dec 2025](https://millionrounds.com/company/runware)[**Superblocks** $23M · Jun 2025](https://millionrounds.com/company/superblocks)[**Blacksmith** $131M · Oct 2026](https://millionrounds.com/company/blacksmith)

## Find investors like these

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