# Fluidstack funding: rounds and investors

> Fluidstack has raised $3.0B across 3 rounds since 2026. Investors include Seedcamp, Jane Street and Mana Ventures. Every round with its source.

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

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

# Who invested in *Fluidstack*

3 rounds we have observed, with the 6 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 Big Data & Analytics Cloud Hardware & Electronics

Raised 2 months ago

Follow Fluidstack and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Ffluidstack)

Funding summary Updated 5 Nov 2026

**$3.0B** raised across 3 rounds since 2026, from 3 sources

**$450M** Venture **$1.0B** Round **$1.5B** Growth

- **Latest round:** Growth, $1.5B Sept 2026
- **Step-up i:** 1.5×
- **Investors:** 6 (1 led)

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 2027

**$450M** Venture

**$1.0B** Round

**$1.5B** Growth

- **First round:** Venture, $450M
- **Biggest round:** $1.5B
- **Usual gap between rounds:** 5 months

## The rounds

- **Sept 2026** Growth **$1.5B** *4 new* *1 returning* [Seedcamp](https://millionrounds.com/fund/seedcamp) [Mana Ventures](https://millionrounds.com/fund/mana-ventures) [Episode 1](https://millionrounds.com/fund/episode-1) [Mercuri VC](https://millionrounds.com/fund/mercuri) [d.camp](https://millionrounds.com/fund/dcamp) Also list them on their own site [Hypersphere Capital](https://millionrounds.com/fund/hypersphere) Source recorded SEC filing: $730M sold
- **Apr 2026** Round **$1.0B** *1 new* [Jane Street](https://millionrounds.com/fund/jane-street) Lead Reported by TechCrunch SEC filing: $730M sold, first sale May 2026
- **Jan 2026** Venture **$450M** *1 new* [Seedcamp](https://millionrounds.com/fund/seedcamp) Source recorded SEC filing: $450M sold, first sale Jan 2026

## Funding filed with regulators

Fluidstack filed 3 raises, $2.0B in all. Filings say how much was sold and to how many investors; they never name the investors.

- Jun 2026 **$730M** 7 investors of $1.5B offered SEC Form D
- May 2026 **$842M** 30 investors of $850M offered SEC Form D
- Jan 2026 **$450M** 1 investor of $750M 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.

**Venture** 2026 **Round** 2026 **Growth** 2026 [Seedcamp](https://millionrounds.com/fund/seedcamp) [Jane Street](https://millionrounds.com/fund/jane-street) L [Mana Ventures](https://millionrounds.com/fund/mana-ventures) [Episode 1](https://millionrounds.com/fund/episode-1) [Mercuri VC](https://millionrounds.com/fund/mercuri) [d.camp](https://millionrounds.com/fund/dcamp)

## Everyone who backed them

[Seedcamp](https://millionrounds.com/fund/seedcamp) VC firm **2** rounds

[Jane Street](https://millionrounds.com/fund/jane-street) Growth equity **1** round, led 1

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

[Episode 1](https://millionrounds.com/fund/episode-1) VC firm **1** round

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

[d.camp](https://millionrounds.com/fund/dcamp) Accelerator **1** round

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

## Also claim to have backed them

These 11 firms list Fluidstack 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.

[Zero Infinity Partners](https://millionrounds.com/fund/zero-infinity-partners) VC firm Per its own site

[Hypersphere Capital](https://millionrounds.com/fund/hypersphere) Hedge fund Growth, 2026, per its site

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

[Partners Resolute](https://millionrounds.com/fund/partners-resolute) VC firm Per its own site

[Abhay](https://millionrounds.com/fund/abhay) Angel network Per its own site

[Bare Metal Ventures](https://millionrounds.com/fund/bare-metal-ventures) VC firm Per its own site

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

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

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

[Stack Capital](https://millionrounds.com/fund/stack-capital) Private equity Per its own site

[The Astro Group LLC](https://millionrounds.com/fund/the-astro-group-llc) Investor Per its own site

## Quick answers about Fluidstack

### Who invested in Fluidstack?

Fluidstack's investors include Seedcamp, Jane Street, Mana Ventures, Episode 1 and Mercuri VC, and 1 more on record.

### How much has Fluidstack raised?

Fluidstack has raised $3.0B across 3 rounds since 2026.

### When did Fluidstack last raise?

Fluidstack's most recent round was a Growth of $1.5B in Sept 2026.

### What was Fluidstack's biggest round?

Its most recent round, $1.5B in Sept 2026, is also its largest on record.

### Who backed Fluidstack first?

Fluidstack's first round on record, in Jan 2026, was backed by Seedcamp.

### What stage is Fluidstack at?

Fluidstack's latest named round is a Growth, in Sept 2026.

### Where is Fluidstack based?

Fluidstack is based in the United States.

### Who led Fluidstack's rounds?

Jane Street led the funding round in 2026.

## Companies like Fluidstack

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

[**Journify** $12M · Nov 2026](https://millionrounds.com/company/journify)[**Laza Medical** $160M · Nov 2026](https://millionrounds.com/company/laza-medical)[**Nooks** $543M · Nov 2026](https://millionrounds.com/company/nooks)[**e2e** $8.0M · Nov 2026](https://millionrounds.com/company/e2e)[**Applied Compute** $580M · Nov 2026](https://millionrounds.com/company/applied-compute)[**Guava** $13M · Nov 2026](https://millionrounds.com/company/guava)

## Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app
