# Oneiro funding: rounds and investors

> Oneiro has raised $5.0M across 1 round since 2019. Investors include COSIMO Ventures. Every round with its source.

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

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

# Who invested in *Oneiro*

One round we have observed, with the one investor 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

**$5.0M** raised across 1 round since 2019, from 1 source

- **Latest round:** Series A, $5.0M Oct 2019
- **Investors:** 1

See who backed them

## The rounds

- **Oct 2019** Series A **$5.0M** [COSIMO Ventures](https://millionrounds.com/fund/cosimo-ventures) Reported by FinSMEs

## Everyone who backed them

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

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

## Quick answers about Oneiro

### Who invested in Oneiro?

Oneiro's investors include COSIMO Ventures.

### How much has Oneiro raised?

Oneiro has raised $5.0M across 1 round since 2019.

### When did Oneiro last raise?

Oneiro's most recent round was a Series A of $5.0M in Oct 2019.

### What was Oneiro's biggest round?

Its most recent round, $5.0M in Oct 2019, is also its largest on record.

### Who backed Oneiro first?

Oneiro's first round on record, in Oct 2019, was backed by COSIMO Ventures.

### What stage is Oneiro at?

Oneiro's latest named round is a Series A, in Oct 2019.

### Where is Oneiro based?

Oneiro is based in the United States.

## Companies like Oneiro

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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