# Bun funding: rounds and investors

> Bun has raised $7.0M across 1 round since 2022. Investors include Y Combinator and Kleiner Perkins. Every round with its source.

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

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

# Who invested in *Bun*

One round we have observed, with the 2 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

Funding summary Updated 26 Oct 2026

**$7.0M** raised across 1 round since 2022, from 1 source

- **Latest round:** Seed, $7.0M Aug 2022
- **Investors:** 2

See who backed them

## The rounds

- **Aug 2022** Seed **$7.0M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) Source recorded

## Everyone who backed them

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

[Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) VC firm **1** round

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

## Also claim to have backed them

This firm lists Bun 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.

[Festina](https://millionrounds.com/fund/festina) VC firm Per its own site

## Quick answers about Bun

### Who invested in Bun?

Bun's investors include Y Combinator and Kleiner Perkins.

### How much has Bun raised?

Bun has raised $7.0M across 1 round since 2022.

### When did Bun last raise?

Bun's most recent round was a Seed of $7.0M in Aug 2022.

### What was Bun's biggest round?

Its most recent round, $7.0M in Aug 2022, is also its largest on record.

### Who backed Bun first?

Bun's first round on record, in Aug 2022, was backed by Y Combinator and Kleiner Perkins.

### What stage is Bun at?

Bun's latest named round is a Seed, in Aug 2022.

### Where is Bun based?

Bun is based in the United States.

## Companies like Bun

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

[**Blacksmith** $131M · Oct 2026](https://millionrounds.com/company/blacksmith)[**Flapping Airplanes** $1.2B · Oct 2026](https://millionrounds.com/company/flapping-airplanes)[**Swamp Club** $7.0M · Oct 2026](https://millionrounds.com/company/swamp-club)[**Namespace** $42M · Oct 2026](https://millionrounds.com/company/namespace)[**Supabase** $950M · Oct 2026](https://millionrounds.com/company/supabase)[**Factory** $405M · Sept 2026](https://millionrounds.com/company/factory)

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