# Iron Fish funding: rounds and investors

> Iron Fish has raised $28M across 1 round since 2021. Investors include Sequoia Capital, Andreessen Horowitz and Slow Ventures. Every round with its source.

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

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

# Who invested in *Iron Fish*

One round we have observed, with the 5 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.

Web3 & Crypto

Funding summary Updated 26 Oct 2026

**$28M** raised across 1 round since 2021, from 1 source

- **Latest round:** Series A, $28M Nov 2021
- **Investors:** 5

See who backed them

## The rounds

- **Nov 2021** Series A **$28M** [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Slow Ventures](https://millionrounds.com/fund/slow-ventures) [Electric Capital](https://millionrounds.com/fund/electric-capital) [Arrington Capital](https://millionrounds.com/fund/arrington-capital) Source recorded

## Everyone who backed them

[Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) VC firm **1** round

[Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) VC firm **1** round

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

[Electric Capital](https://millionrounds.com/fund/electric-capital) VC firm **1** round

[Arrington Capital](https://millionrounds.com/fund/arrington-capital) VC firm **1** round

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

## Also claim to have backed them

These 3 firms list Iron Fish 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.

[A16z Crypto](https://millionrounds.com/fund/a16z-crypto) VC firm Per its own site

[A.Capital Ventures](https://millionrounds.com/fund/a-capital-ventures) VC firm Per its own site

[Synergis Capital](https://millionrounds.com/fund/synergis-capital) Growth equity Per its own site

## Quick answers about Iron Fish

### Who invested in Iron Fish?

Iron Fish's investors include Sequoia Capital, Andreessen Horowitz, Slow Ventures, Electric Capital and Arrington Capital.

### How much has Iron Fish raised?

Iron Fish has raised $28M across 1 round since 2021.

### When did Iron Fish last raise?

Iron Fish's most recent round was a Series A of $28M in Nov 2021.

### What was Iron Fish's biggest round?

Its most recent round, $28M in Nov 2021, is also its largest on record.

### Who backed Iron Fish first?

Iron Fish's first round on record, in Nov 2021, was backed by Sequoia Capital, Andreessen Horowitz and Slow Ventures and 2 others.

### What stage is Iron Fish at?

Iron Fish's latest named round is a Series A, in Nov 2021.

### Where is Iron Fish based?

Iron Fish is based in the United States.

## Companies like Iron Fish

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

[**Kalshi** $2.7B · Oct 2026](https://millionrounds.com/company/kalshi)[**STRIVE** $1.3B · Oct 2026](https://millionrounds.com/company/strive)[**Arda** $233M · Oct 2026](https://millionrounds.com/company/arda)[**Binance.US** $300M · Oct 2026](https://millionrounds.com/company/binance-us)[**Fission** $10M · Oct 2026](https://millionrounds.com/company/fission)[**Ramp** $4.5B · Oct 2026](https://millionrounds.com/company/ramp)

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