United States · 
Who invested in Adaptive Security?
Adaptive Security's investors include Andreessen Horowitz, OpenAI, Citibank, Bain Capital Ventures and Abstract Ventures, and 2 more on record.
2026
$43MSeries A$81MSeries B
United States · Series B startup
Who invested in Adaptive Security
2 rounds we have observed, with the 7 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Raised 11 months ago
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Funding summaryUpdated 5 Nov 2026
$124Mraised across 2 rounds since 2025, from 2 sources
$43MSeries A$81MSeries B
- Latest round
- Series B, $81MDec 2025
- Step-upi
- 1.9×
- Investors
- 7 (2 led)
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $43M Apr 2025
- Biggest round
- $81M Series B · Dec 2025
- Between rounds
- 8 months from the last two
The rounds
- Dec 2025Series B$81M5 new1 returning
Source recorded
- Apr 2025
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Series A2025Series B2025
Andreessen HorowitzL
OpenAIL
Citibank
Bain Capital Ventures
Abstract Ventures
Eniac Ventures
nVentures
Andreessen HorowitzLOpenAILCitibankBain Capital VenturesAbstract VenturesEniac VenturesnVenturesEveryone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 2 firms list Adaptive Security as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Adaptive Security
How much has Adaptive Security raised?
Adaptive Security has raised $124M across 2 rounds since 2025.
When did Adaptive Security last raise?
Adaptive Security's most recent round was a Series B of $81M in Dec 2025.
What was Adaptive Security's biggest round?
Its most recent round, $81M in Dec 2025, is also its largest on record.
Who backed Adaptive Security first?
Adaptive Security's first round on record, in Apr 2025, was backed by Andreessen Horowitz and OpenAI.
What stage is Adaptive Security at?
Adaptive Security's latest named round is a Series B, in Dec 2025.
Where is Adaptive Security based?
Adaptive Security is based in the United States.
Who led Adaptive Security's rounds?
Andreessen Horowitz led the Series A in 2025.
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