# Optimism funding: rounds and investors

> Optimism has raised across 1 round since 2022. Investors include Andreessen Horowitz, Spark Capital and Coinbase Ventures. Every round with its source.

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

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

# Who invested in *Optimism*

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

**Undisclosed** raised across 1 round since 2022, from 1 source

- **Latest round:** Venture Nov 2022
- **Investors:** 5

See who backed them

## The rounds

- **Nov 2022** Venture **Amount undisclosed** [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Spark Capital](https://millionrounds.com/fund/spark-capital) [Coinbase Ventures](https://millionrounds.com/fund/coinbase) [Paradigm](https://millionrounds.com/fund/paradigm) [Wintermute Ventures](https://millionrounds.com/fund/wintermute-ventures) Source recorded

## Everyone who backed them

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

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

[Coinbase Ventures](https://millionrounds.com/fund/coinbase) Corporate VC **1** round

[Paradigm](https://millionrounds.com/fund/paradigm) VC firm **1** round

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

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

## Also claim to have backed them

These 7 firms list Optimism 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

[Andromeda Capital](https://millionrounds.com/fund/andromeda-capital) VC firm Per its own site

[IDEO CoLab Ventures](https://millionrounds.com/fund/ideo-colab-ventures) VC firm Per its own site

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

[Spearhead](https://millionrounds.com/fund/spearhead-2) VC firm Per its own site

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

[Kernel (KERNEL Fellowship)](https://millionrounds.com/fund/kernel-kernel-fellowship) Angel Per its own site

## Quick answers about Optimism

### Who invested in Optimism?

Optimism's investors include Andreessen Horowitz, Spark Capital, Coinbase Ventures, Paradigm and Wintermute Ventures.

### How much has Optimism raised?

Optimism has raised 1 round since 2022, none with a disclosed amount.

### When did Optimism last raise?

Optimism's most recent round was a Venture in Nov 2022.

### Who backed Optimism first?

Optimism's first round on record, in Nov 2022, was backed by Andreessen Horowitz, Spark Capital and Coinbase Ventures and 2 others.

### What stage is Optimism at?

Optimism's latest named round is a Venture, in Nov 2022.

### Where is Optimism based?

Optimism is based in the United States.

## Companies like Optimism

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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