United States · 
Who invested in Horizon3?
Horizon3's investors include New Enterprise Associates, NightDragon, Sapphire Ventures, Craft Ventures and Qualcomm Ventures, and 7 more on record. New Enterprise Associates led its latest round.
United States · Series E startup
Who invested in Horizon3
One round we have observed, with the 12 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.
Raised 3 months ago
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Funding summaryUpdated 5 Nov 2026
$250Mraised across 1 round since 2026, from 5 sources
- Latest round
- Series E, $250MAug 2026
- Led by
- New Enterprise Associates and NightDragon
- Investors
- 12 (2 led)
The rounds
- Aug 2026
Everyone who backed them
Demeter GroupGrowth equity1round
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Quick answers about Horizon3
How much has Horizon3 raised?
Horizon3 has raised $250M across 1 round since 2026.
When did Horizon3 last raise?
Horizon3's most recent round was a Series E of $250M in Aug 2026, led by New Enterprise Associates.
What was Horizon3's biggest round?
Its most recent round, $250M in Aug 2026, is also its largest on record.
Who backed Horizon3 first?
Horizon3's first round on record, in Aug 2026, was backed by New Enterprise Associates, NightDragon and Sapphire Ventures and 9 others.
What stage is Horizon3 at?
Horizon3's latest named round is a Series E, in Aug 2026.
Where is Horizon3 based?
Horizon3 is based in the United States.
Who led Horizon3's rounds?
New Enterprise Associates led the Series E in 2026.
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