Big round · 3 August 2026
Horizon3 raises $250M Series E led by New Enterprise Associates
Horizon3, based in United States, has raised $250M in a Series E led by New Enterprise Associates and NightDragon, announced on 3 August 2026. 10 other investors joined. It is the 191st largest equity round we recorded in the twelve months to that date, and the 21st largest Series E of 35.
Raised$250M4 sources reported it
StageSeries Efirst round on record
Investors122 named as lead
Where USUnited States
USAICybersecurity
How big is it?
Against every equity round we recorded in the twelve months to 3 August 2026. Ranks count companies, so the same raise reported twice is counted once.
#191equity round of the last twelve months
#21Series E of 35 in that time
#134round in United States, of 1,080
This round$250M
Median Series E$314M
Below the median Series E of the last twelve months.
Who invested
New Enterprise Associates82 rounds in the last twelve monthsLed
NightDragon4 rounds in the last twelve monthsLed
Also in the round
Funding history
- August 2026Series E$250M
This is the first round we hold for the company.
Reported by
- TechCrunch3 August
- TechStartups3 August
- Ventureburn3 August
- NightDragon3 August
The round's figures come from these reports; each link opens the original.
