Well Run profileThe Chase Pack · #112 of 730

Position 112

AegisAI

AI agents and in-house models that stop phishing and email attacks before the inbox

Pace
3:30/kmSprint4.75
Distance
Distance Unproven.
Open ops roles
4
Sprint 3:30/kmAegisAI
Race 4:05/km
Tempo 4:40/km
Steady 5:20/kmAbnormal AI
Warm-up 6:00/km
Cool-down 6:30/km
AegisAI runs in the Sprint lane. Rivals on Well Run sit in their own pace lanes; further right = more momentum. Tap one to open its page.Also competes with: Ocean, Proofpoint, Mimecast
Total raised
$49Msee rounds ↓
Headcount
~34as of Jul 2026 pitchbook.com ↗
Founded
2025
HQ
San Francisco, CA

Leadership

The problem

AI-written spear phishing and BEC slip past rule-based email filters and fool employees

What they do

AI agents and in-house models that stop phishing and email attacks before the inbox

Traction 3 paying customers at Sep 2025 seed to dozens by Jul 2026 (Mesh, LangChain); team ~5x+

Hiring trend

Open roles
28
Ops roles
4
Headcount
~30-50

Team ~6 (Sep 2025) to ~30-50 (Oct 2026, est.); 21 of 28 open roles posted since Aug 2026

Hiring in

  • San Francisco
  • New York
  • Remote (US)

Funding

Last round
$36M
Stage
Series A
Date
Jul 2026

Led by Battery Ventures

Distance

Unproven · edge: learns from use

Barely a year old with dozens of customers; trains its own email models on live traffic, but competes with Abnormal, Proofpoint, Mimecast and AI-native startups like Ocean, and has not published revenue or false-positive data.

Sources: TechCrunch: AegisAI raises $36M Series A, dozens of customers, rivals Abnormal and Ocean (Jul 2026) ↗ · PR Newswire: AegisAI launches Proteus model, false-positive data still to come (Oct 2026) ↗

Last checked Nov 4, 2026

News timeline

  1. Oct 2026Launches Proteus, its own foundational model for email security prnewswire.com ↗
  2. Jul 2026Raises $36M Series A led by Battery Ventures; $49M total, dozens of customers techcrunch.com ↗
  3. Mar 2026Launches Vanguard threat-hunting agent and AI email threat study prnewswire.com ↗
  4. Sep 2025Emerges from stealth with $13M seed co-led by Accel and Foundation Capital techcrunch.com ↗

Funding historyTotal raised $49M

  1. Jul 2026Series A$36MLed by Battery Ventures techcrunch.com ↗
  2. Sep 2025Seed$13MLed by Accel, Foundation Capital techcrunch.com ↗

Profile facts checked Nov 4, 2026. Every fact links to its public source.

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