# Pump funding: rounds and investors

> Pump has raised $4.0M across 1 round since 2024. Investors include Y Combinator and Pioneer Fund. Every round with its source.

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

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

# Who invested in *Pump*

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.

B2B

Funding summary Updated 26 Oct 2026

**$4.0M** raised across 1 round since 2024, from 1 source

- **Latest round:** Seed, $4.0M Apr 2024
- **Investors:** 2

See who backed them

## The rounds

- **Apr 2024** Seed **$4.0M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) Source recorded

## Everyone who backed them

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

[Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) Private equity **1** round

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

## Also claim to have backed them

These 6 firms list Pump as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[Big Brain Holdings](https://millionrounds.com/fund/big-brain-holdings) VC firm Per its own site

[6th Man Ventures](https://millionrounds.com/fund/6mv) VC firm Per its own site

[Darling Ventures](https://millionrounds.com/fund/darling-ventures) VC firm Per its own site

[Failup Ventures](https://millionrounds.com/fund/failup-ventures) VC firm Per its own site

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

[Dupe Ventures](https://millionrounds.com/fund/dupe-ventures) VC firm Per its own site

## Quick answers about Pump

### Who invested in Pump?

Pump's investors include Y Combinator and Pioneer Fund.

### How much has Pump raised?

Pump has raised $4.0M across 1 round since 2024.

### When did Pump last raise?

Pump's most recent round was a Seed of $4.0M in Apr 2024.

### What was Pump's biggest round?

Its most recent round, $4.0M in Apr 2024, is also its largest on record.

### Who backed Pump first?

Pump's first round on record, in Apr 2024, was backed by Y Combinator and Pioneer Fund.

### What stage is Pump at?

Pump's latest named round is a Seed, in Apr 2024.

### Where is Pump based?

Pump is based in the United States.

## Companies like Pump

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

[**MURAL** $67M · Oct 2026](https://millionrounds.com/company/mural)[**Different** $48M · Oct 2026](https://millionrounds.com/company/different)[**Dapta** $6.0M · Oct 2026](https://millionrounds.com/company/dapta)[**Amani Therapeutics** $60M · Oct 2026](https://millionrounds.com/company/amani-therapeutics)[**Relay** $207M · Oct 2026](https://millionrounds.com/company/relay)[**Bash Capital1** $5.7M · Sept 2026](https://millionrounds.com/company/bash-capital1)

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