# 21st funding: rounds and investors

> 21st has raised across 1 round since 2026. Investors include Pioneer Fund, Hustle Fund and Sahin Boydas. Every round with its source.

Source: https://millionrounds.com/company/21st (Millionrounds; every figure on the page links to its filing or article)

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

# Who invested in *21st*

One round we have observed, with the 3 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.

AI

Raised 8 months ago

Funding summary Updated 26 Oct 2026

**Undisclosed** raised across 1 round since 2026, from 1 source

- **Latest round:** Venture Mar 2026
- **Investors:** 3

See who backed them

## The rounds

- **Mar 2026** Venture **Amount undisclosed** [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) [Hustle Fund](https://millionrounds.com/fund/hustle-fund) [Sahin Boydas](https://millionrounds.com/fund/sahin-boydas) Source recorded

## Everyone who backed them

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

[Hustle Fund](https://millionrounds.com/fund/hustle-fund) VC firm **1** round

[Sahin Boydas](https://millionrounds.com/fund/sahin-boydas) Angel **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=21st).

## Quick answers about 21st

### Who invested in 21st?

21st's investors include Pioneer Fund, Hustle Fund and Sahin Boydas.

### How much has 21st raised?

21st has raised 1 round since 2026, none with a disclosed amount.

### When did 21st last raise?

21st's most recent round was a Venture in Mar 2026.

### Who backed 21st first?

21st's first round on record, in Mar 2026, was backed by Pioneer Fund, Hustle Fund and Sahin Boydas.

### What stage is 21st at?

21st's latest named round is a Venture, in Mar 2026.

### Where is 21st based?

21st is based in the United States.

## Companies like 21st

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

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