United States · 
Who invested in HiO?
HiO's investors include Khosla Ventures and Celesta Capital.
United States · Seed startup
Who invested in HiO
Funding summaryUpdated 26 Oct 2026
$15Mraised across 1 round since 2025, from 1 source
- Latest round
- Seed, $15MOct 2025
- Investors
- 2
The rounds
- Oct 2025
Everyone who backed them
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Quick answers about HiO
How much has HiO raised?
HiO has raised $15M across 1 round since 2025.
When did HiO last raise?
HiO's most recent round was a Seed of $15M in Oct 2025.
What was HiO's biggest round?
Its most recent round, $15M in Oct 2025, is also its largest on record.
Who backed HiO first?
HiO's first round on record, in Oct 2025, was backed by Khosla Ventures and Celesta Capital.
What stage is HiO at?
HiO's latest named round is a Seed, in Oct 2025.
Where is HiO based?
HiO is based in the United States.
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