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Well Run profileThe Chase Pack · #465 of 720

Position 465

Abnormal AI

Behavioral AI that stops email attacks, account takeover and insider threats

Pace
5:20/kmSteady2.5
Distance
Distance Half.
Open ops roles
4
Last week
—
Move
New
Peak
#449
Weeks in the 100
0
The Chart →
Rank and score over time
Board rank
#439#449#459#449Oct 25
Pace score
02462.5Oct 25

One point per Sunday re-rank, tracking since Oct 25. The lines fill in week by week.

Abnormal AI runs in the Steady lane (5:20/km): 99 of 196. Further right = more momentum. No competitors on the board yet, so it runs alone.

Also competes with: Proofpoint, Microsoft Defender for Office 365, Mimecast, Sublime Security, Check Point Harmony Email

Revenue estimate
~$380M ARR (~50% YoY)company-stated · as of FY26 close (stated Oct 2026) abnormal.ai ↗
Total raised
$546Msee rounds ↓
Headcount
~1,611as of Mar 2026 reveliolabs.com ↗
Founded
2018
HQ
Las Vegas, NV (office in San Francisco)

Leadership

The problem

Phishing and business email compromise slip past rule-based filters, and security teams drown in reported emails

What they do

Behavioral AI that stops email attacks, account takeover and insider threats

Traction ~$380M ARR at FY26 close, ~50% YoY; 5,000+ customers incl. 30% of Fortune 500

Hiring trend

Open roles
86
Ops roles
4
Headcount
~1,600

Headcount ~1,620, +21% YoY (LinkedIn); ~630 → ~1,611 2023–2026 (Revelio); postings flat vs 2025; small RIF Jan 2026

Hiring in

  • Bengaluru
  • San Francisco
  • Remote (US)
  • Remote (UK)

Funding

Last round
$250M
Stage
Series D
Date
Aug 2024

Led by Wellington Management

Distance

Half · edge: learns from use

Leader of API-based behavioral email security with 5,000+ customers and 30% of the Fortune 500, now adding identity and AI-security lines; still competes with Microsoft, Proofpoint and cheaper rivals, and Anthropic is moving into security.

Sources: Abnormal job post: ~$380M ARR at FY26 close, ~50% YoY, 5,000+ customers (Oct 2026) ↗ · CNBC: Abnormal $250M Series D at $5.1B (Aug 2024) ↗

Watch-outs

Jul 2026: Anthropic sued Abnormal for trademark infringement over its 2025 rebrand logo, seeking disgorgement of profits (N.D. Cal., pending).

Sources: Axios: Anthropic sues AI security firm Abnormal over logo (Jul 2026) ↗ · CourtListener: Anthropic v. Abnormal AI complaint (N.D. Cal.) ↗ · Abnormal: CEO response to the Anthropic lawsuit (Jul 2026) ↗

Last checked Oct 25, 2026

News timeline

  1. Sep 2026Expands AI Security suite; AI Governance generally available abnormal.ai ↗
  2. Aug 2026Partners with OpenAI; joins Daybreak Cyber Partner Program linkedin.com ↗
  3. Jul 2026Anthropic sues Abnormal over its rebrand logo (trademark) axios.com ↗
  4. Jul 2026Launches Identity Threat Protection, AI Governance, Infiltration Prevention linkedin.com ↗
  5. Apr 2026Hires ex-MGM CISO and new Chief Legal Officer businesswire.com ↗
  6. Jan 2025Hires ex-ServiceNow exec Lisa Banks as CFO ahead of IPO prep cnbc.com ↗

Funding historyTotal raised $546M

  1. Aug 2024Series D$250Mat $5.1BLed by Wellington Management abnormal.ai ↗
  2. May 2022Series C$210Mat $4BLed by Insight Partners siliconvalleyinvestclub.com ↗
  3. Nov 2020Series B$50MLed by Menlo Ventures linkedin.com ↗
  4. Nov 2019Series A$24MLed by Greylock Partners linkedin.com ↗

Profile facts checked Oct 19, 2026. Every fact links to its public source.

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