Abnormal Security
Track on RadarAI-powered email & cloud security protecting against phishing & account takeover
- Total raised
- $534M
- Employees
- 1,542
- Founded
- 2018
- Momentum
- 61
Steady
Data updated July 2026
About
About Abnormal Security
At a glance
Abnormal Security is a cybersecurity company specializing in Email & Messaging Security, founded in 2018 and headquartered in San Francisco, United States. It has raised $534M in total funding, employs about 1,542 people, and is privately held.
Abnormal Security provides AI-native email and cloud security solutions that protect against phishing, social engineering, and account takeover attacks. The company was founded in 2018 by former advertising technology professionals who applied their AI expertise to cybersecurity. The platform connects via API to analyze thousands of signals from multiple data sources, establishing behavioral baselines for users and detecting anomalous activity. The Abnormal Behavior Platform delivers email security for Microsoft 365 and Google Workspace, as well as multi-platform defense for cloud infrastructure and SaaS applications including Workday, Salesforce, ServiceNow, Slack, and Amazon Web Services. The system uses autonomous AI models to detect and prevent attacks by understanding human behavior patterns and identifying deviations that indicate threats. The company protects over 20 million people across more than 3,000 organizations, including 17% of the Fortune 500. Abnormal Security operates globally with presence in North America, Europe, Asia, and Australia. The platform automates threat detection and response, reducing manual security operations workload. The company surpassed $200 million in annual recurring revenue within five years of founding and has raised $546 million in total funding at a $5.1 billion valuation.
Momentum
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Valuation
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Funding
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Privately held
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Headcount
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FAQ
Frequently asked questions about Abnormal Security
When was Abnormal Security founded?▾
Abnormal Security was founded in 2018.
Where is Abnormal Security headquartered?▾
Abnormal Security is headquartered in San Francisco, United States.
How much funding has Abnormal Security raised?▾
Abnormal Security has raised a total of $534M in total funding.
Is Abnormal Security public or private?▾
Abnormal Security is a privately-held company.
How many employees does Abnormal Security have?▾
Abnormal Security has approximately 1,542 employees.
