# Valthos funding: rounds and investors

> Valthos has raised $57M across 2 rounds since 2025. Investors include Founders Fund, Lux Capital and OpenAI. Every round with its source.

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

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

# Who invested in *Valthos*

2 rounds we have observed, with the 3 investors named in them. 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

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Funding summary Updated 15 Nov 2026

**$57M** raised across 2 rounds since 2025, from 3 sources

**$30M** Seed **$27M** Round

- **Latest round:** Round, $27M Apr 2026
- **Biggest round:** $30M Seed · Oct 2025
- **Investors:** 3

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026

**$30M** Seed

**$27M** Round

- **First round:** Seed, $30M
- **Biggest round:** $30M
- **Between rounds:** 5 months

## The rounds

- **Apr 2026** Round **$27M** No investor was named in the report. Filed with the SEC (Form D); no report of this raise yet SEC filing: $27M sold, first sale Apr 2026
- **Oct 2025** Seed **$30M** *3 new* [Founders Fund](https://millionrounds.com/fund/founders-fund) [Lux Capital](https://millionrounds.com/fund/lux-capital) [OpenAI](https://millionrounds.com/fund/openai) Reported by TechStartups and 1 other

## Funding filed with regulators

Valthos filed one raise, $27M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Apr 2026 **$27M** 5 investors of $27M offered SEC Form D

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Seed** 2025 **Round** 2026 [Founders Fund](https://millionrounds.com/fund/founders-fund) [Lux Capital](https://millionrounds.com/fund/lux-capital) [OpenAI](https://millionrounds.com/fund/openai)

## Everyone who backed them

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

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

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

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

## Quick answers about Valthos

### Who invested in Valthos?

Valthos's investors include Founders Fund, Lux Capital and OpenAI.

### How much has Valthos raised?

Valthos has raised $57M across 2 rounds since 2025.

### When did Valthos last raise?

Valthos's most recent round, $27M, was in Apr 2026.

### What was Valthos's biggest round?

Valthos's largest round on record is $30M (Seed), in Oct 2025.

### Who backed Valthos first?

Valthos's first round on record, in Oct 2025, was backed by Founders Fund, Lux Capital and OpenAI.

### What stage is Valthos at?

Valthos's latest named round is a Seed, in Oct 2025.

### Where is Valthos based?

Valthos is based in the United States.

## Companies like Valthos

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

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