# assistant-ui funding: rounds and investors

> assistant-ui has raised $500K across 1 round since 2025. Investors include Y Combinator and Pioneer Fund. Every round with its source.

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

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

# Who invested in *assistant-ui*

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.

Consumer Apps

Funding summary Updated 26 Oct 2026

**$500K** raised across 1 round since 2025, from 1 source

- **Latest round:** Pre-seed, $500K Mar 2025
- **Investors:** 2

See who backed them

## The rounds

- **Mar 2025** Pre-seed **$500K** [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=assistant-ui).

## Quick answers about assistant-ui

### Who invested in assistant-ui?

assistant-ui's investors include Y Combinator and Pioneer Fund.

### How much has assistant-ui raised?

assistant-ui has raised $500K across 1 round since 2025.

### When did assistant-ui last raise?

assistant-ui's most recent round was a Pre-seed of $500K in Mar 2025.

### What was assistant-ui's biggest round?

Its most recent round, $500K in Mar 2025, is also its largest on record.

### Who backed assistant-ui first?

assistant-ui's first round on record, in Mar 2025, was backed by Y Combinator and Pioneer Fund.

### What stage is assistant-ui at?

assistant-ui's latest named round is a Pre-seed, in Mar 2025.

### Where is assistant-ui based?

assistant-ui is based in the United States.

## Companies like assistant-ui

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

[**Punch** $11M · Oct 2026](https://millionrounds.com/company/punch)[**Albert** $57M · Oct 2026](https://millionrounds.com/company/albert)[**Welltory** $4.0M · Oct 2026](https://millionrounds.com/company/welltory)[**Arena** $401M · Oct 2026](https://millionrounds.com/company/arena)[**Bloom** $418M · Oct 2026](https://millionrounds.com/company/bloom)[**Clockout** $5.5M · Oct 2026](https://millionrounds.com/company/clockout)

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