United States · 
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.
United States · Series A startup
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.
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Funding summaryUpdated 5 Nov 2026
$50Mraised across 1 round since 2025, from 1 source
- Latest round
- Series A, $50MApr 2025
- Led by
- Index Ventures and Interlagos
- Investors
- 7 (2 led)
The rounds
- Apr 2025
Everyone who backed them
Jared LetoAngel1round
Bill Gates's Breakthrough Energy VenturesVC firm1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Aetherflux
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.
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