Adaptive Security

Adaptive Security provides AI-powered social engineering prevention solutions.

AI agents Cybersecurity HR and recruiting

Latest funding

$81M Series B+ · December 16, 2025

Led by Bain Capital Ventures · Source: fundraisingfox.com

Total raised: $124M across 2 sourced rounds

All 3 rounds ↓

Website: adaptivesecurity.com.

X: @AdaptiveSec · 401 followers.

LinkedIn: adaptivesecurity.

Categories: AI agents Cybersecurity HR and recruiting.

Sectors: Artificial Intelligence (AI), Cyber Security, Network Security, Risk Management, Security.

Stage: Series B+.

Based in: New York, United States.

Founded: 2023.

Total raised: $124M in 2 sourced rounds.

Last round: Dec 16, 2025 · 334 days ago.

Headcount: 251–500 employees.

On Recent Funding since: Sep 29, 2026.

Signals

X account@AdaptiveSec · created May 28, 2024 (2 years old) · 401 followers

Website registeredOct 9, 2003 (23 years old)

About Adaptive Security

It offers security awareness training, agentic email security, and AI governance. Its platform trains employees against emerging threats, stops email attacks, and secures AI usage for organizations.

TIMELINE · MONEY RAISED

Adaptive Security | 310 days from X account to first raise on record

@AdaptiveSec·Raised $124M in 2 sourced rounds·1 signal before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

Date	Round	Amount	Lead	Source
Dec 16, 2025	Series B+	$81M	BBain Capital Ventures	fundraisingfox.com
Sep 9, 2025	Series A	undisclosed	—	fundraisingfox.com
Apr 3, 2025	Series A	$43M	AAndreessen Horowitz	thesaasnews.com

Timeline

May 28, 2024
X account created
October 9, 2003
Website created

Founders and team

AJ
Andrew Jones Founder
BL
Brian Long Founder

@brianclong
MR
Mike Remondi CTO

@remondimi · source: x.com
EL
Ethan Lo Team member

@ethanhlo · source: x.com

Investors

Companies like Adaptive Security

HHoxhunt$40M Series B+ · May 2022
Aaais - armageddon artificial intelligence securitySeed · Sep 2026
VVega Security$120M Series B+ · Feb 2026
CCardinalOps$17.5M Series A · Mar 2022
ZZenity$125M Series B+ · Oct 2026
PpQCee$3.9M Seed · Jul 2026

Other companies backed by Bain Capital Ventures

CCharta Health$55M Series B+ · Nov 2026
DDaylight Security$80M Series B+ · Nov 2026
TTrajectory$45M Series A · Nov 2026
WWhop$200M Series B+ · Oct 2026
MModal$750M Series B+ · Oct 2026
VVesta$30M Series B+ · Oct 2026

Bain Capital Ventures portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/adaptive-security (get a free API key).