# Aetherflux funding: rounds and investors

> Aetherflux has raised $50M across 1 round since 2025. Investors include Index Ventures, Interlagos and Andreessen Horowitz. Every round with its source.

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

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

# Who invested in *Aetherflux*

One round we have observed, with the 7 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.

Aerospace & Space Cleantech Energy

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Funding summary Updated 5 Nov 2026

**$50M** raised across 1 round since 2025, from 1 source

- **Latest round:** Series A, $50M Apr 2025
- **Led by:** Index Ventures and Interlagos
- **Investors:** 7 (2 led)

See who backed them

## The rounds

- **Apr 2025** Series A **$50M** [Index Ventures](https://millionrounds.com/fund/index-ventures) Lead [Interlagos](https://millionrounds.com/fund/interlagos) Lead [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) [Jared Leto](https://millionrounds.com/fund/jared-leto) [Bill Gates's Breakthrough Energy Ventures](https://millionrounds.com/fund/bill-gates-s-breakthrough-energy-ventures) Reported by TechCrunch

## Everyone who backed them

[Index Ventures](https://millionrounds.com/fund/index-ventures) VC firm **1** round, led 1

[Interlagos](https://millionrounds.com/fund/interlagos) VC firm **1** round, led 1

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

[New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) VC firm **1** round

[Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) VC firm **1** round

[Jared Leto](https://millionrounds.com/fund/jared-leto) Angel **1** round

[Bill Gates's Breakthrough Energy Ventures](https://millionrounds.com/fund/bill-gates-s-breakthrough-energy-ventures) VC firm **1** round

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

## Quick answers about Aetherflux

### Who invested in Aetherflux?

Aetherflux's investors include Index Ventures, Interlagos, Andreessen Horowitz, New Enterprise Associates and Breakthrough Energy, and 2 more on record. Index Ventures led its latest round.

### How much has Aetherflux raised?

Aetherflux has raised $50M across 1 round since 2025.

### When did Aetherflux last raise?

Aetherflux's most recent round was a Series A of $50M in Apr 2025, led by Index Ventures.

### What was Aetherflux's biggest round?

Its most recent round, $50M in Apr 2025, is also its largest on record.

### Who backed Aetherflux first?

Aetherflux's first round on record, in Apr 2025, was backed by Index Ventures, Interlagos and Andreessen Horowitz and 4 others.

### What stage is Aetherflux at?

Aetherflux's latest named round is a Series A, in Apr 2025.

### Where is Aetherflux based?

Aetherflux is based in the United States.

### Who led Aetherflux's rounds?

Index Ventures led the Series A in 2025.

## Companies like Aetherflux

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

[**Northwood Space** $505M · Nov 2026](https://millionrounds.com/company/northwood-space)[**Iris Technology** Oct 2026](https://millionrounds.com/company/iris-technology)[**Group14 Technologies** $632M · Oct 2026](https://millionrounds.com/company/group14-technologies)[**Rendezvous Robotics** $28M · Oct 2026](https://millionrounds.com/company/rendezvous-robotics)[**Mammoth Energy Services** $58M · Oct 2026](https://millionrounds.com/company/mammoth-energy-services)[**Firehawk Aerospace** $150M · Oct 2026](https://millionrounds.com/company/firehawk-aerospace)

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