# Abnormal Security Corporation

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/abnormal-security

- Industry: IT Security/Cybersecurity
- Headquarters: Las Vegas, US
- Website: www.abnormalsecurity.com
- Total disclosed funding: $516M
- Latest round: Series D (Aug 6, 2024)
- Investors on record: 5

## About

Founded in 2018 and based Las Vegas, NV, Abnormal Security Corporation specializes in advanced cloud email security solutions, protecting organizations from malicious email threats with innovative technology and services. Abnormal Security Corporation raised over USD 532.62 million across 5 funding rounds, with the latest being a Series D led by Wellington Management in which the firm secured USD 250 million. The CEO, Evan Reiser, has a history of entrepreneurial ventures, further contributing to the company's strategic direction and growth. Abnormal AI specializes in advanced cloud email security solutions designed to protect organizations from malicious email attacks. Their core product offerings include Inbound Email Security, AI Security Mailbox, and Account Takeover Protection, leveraging unique behavioral AI approaches to identify and mitigate threats effectively. The company serves a diverse client base, emphasizing markets in North America and Europe, where the demand for sophisticated email security solutions is rapidly growing. Abnormal AI generates revenue through a subscription-based model, providing clients access to its suite of products and services, including its flagship Inbound Email Security and AI Security Mailbox offerings. The transactions are structured as business-to-business (B2B) agreements, enabling organizations to tailor their security solutions. Clients typically enter into annual contracts, which grant them ongoing access to updates and support services, supporting a sustainable revenue stream and fostering long-term partnerships.

## Funding rounds

- Series D, Aug 6, 2024, $250M — Accel, Menlo Ventures, Insight Partners, Greylock Partners, Wellington Management
- Series C, Mar 7, 2022, $210M — Menlo Ventures, Insight Partners, Greylock Partners
- Series B, Oct 30, 2020, $42M — Menlo Ventures, Greylock Partners
- Series A, Dec 5, 2019, $14M — Greylock Partners

## Investors

- Greylock Partners (https://capitalatlas.ai/funds/greylock-partners) — Series A, Series B, Series C, Series D
- Menlo Ventures (https://capitalatlas.ai/funds/menlo-ventures) — Series B, Series C, Series D
- Insight Partners (https://capitalatlas.ai/funds/insight-partners) — Series C, Series D
- Accel (https://capitalatlas.ai/funds/accel) — Series D
- Wellington Management (https://capitalatlas.ai/funds/wellington-management) — Series D