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Abnormal AI vs Rapid7: Founders, CEOs and History

Abnormal AI was founded in 2018 by Evan Reiser, Sanjay Jeyakumar and is led by Evan Reiser. Rapid7 was founded in 2000 by Alan Matthews, Tas Giakouminakis, Chad Loder and is led by Corey Thomas.

Company facts

Abnormal AI

Founded
2018
Headquarters
Las Vegas, Nevada, United States
Current CEO
Evan Reiser
Employees
1,000

Rapid7

Founded
2000
Headquarters
Boston, Massachusetts
Current CEO
Corey Thomas
Employees
2,300

Founders

Abnormal AI

  • Evan Reiser

    Evan Reiser co-founded Abnormal in 2018 and has led it as CEO from its launch through its 2024 Series D at a $5.1 billion valuation and the 2025 rebrand to Abnormal AI.

  • Sanjay Jeyakumar

    Sanjay Jeyakumar co-founded Abnormal in 2018 and was its CTO when the company launched in 2019. Before Abnormal he was the systems architect at Twitter responsible for the distributed data processing and machine learning systems behind Twitter's business.

Abnormal AI founders in full

Rapid7

  • Alan Matthews

    Alan Matthews co-founded Rapid7 in July 2000 and served as its initial Chief Executive Officer and Chairman of the Board of Directors.

  • Tas Giakouminakis

    Tas Giakouminakis co-founded Rapid7 in July 2000 and served as its long-time Chief Technology Officer (CTO). Prior to Rapid7, Giakouminakis led software engineering and product architecture teams at multiple technology firms.

  • Chad Loder

    Chad Loder co-founded Rapid7 in July 2000, serving as an early engineering leader and technical architect. A graduate of Worcester Polytechnic Institute in computer science, Loder previously worked at software startups building network security tools.

Rapid7 founders in full

CEOs and their tenures

Abnormal AI

  1. Evan Reiser2018–present

    Co-founder and Chief Executive Officer

    As CEO, he successfully raised massive venture capital rounds, achieving a $3 billion valuation by proving that traditional rules-based email security was entirely incapable of stopping AI-generated phishing.

    Source
Abnormal AI CEO history in full

Rapid7

  1. Corey Thomas

    Chairman and Chief Executive Officer

  2. Tim Adams

    Former Chief Financial Officer

  3. Rafe Brown

    Chief Financial Officer

  4. Tas Giakouminakis

    Co-Founder and Former Chief Technology Officer

  5. Alan Matthews

    Co-Founder, Former CEO and Chairman

Rapid7 CEO history in full

Timeline: Abnormal AI and Rapid7 side by side

  1. 2000Rapid7

    Rapid7 Founded in Boston

    Alan Matthews, Tas Giakouminakis, and Chad Loder found Rapid7 to build advanced network vulnerability scanning.

  2. 2003Rapid7

    Release of NeXpose Vulnerability Scanner

    Launches NeXpose, introducing vulnerability assessment software for enterprise IT infrastructures.

  3. 2009Rapid7

    Landmark Acquisition of Metasploit

    Acquires the world's most famous open-source penetration testing framework, Metasploit, and creator H.D. Moore.

  4. 2012Rapid7

    Corey Thomas Appointed Chief Executive Officer

    Corey Thomas assumes the role of CEO, leading the transformation into a multi-product cloud analytics leader.

  5. 2015Rapid7

    Initial Public Offering on NASDAQ (RPD)

    Completes successful IPO on NASDAQ, raising $103 million to accelerate cloud software development.

  6. 2015Rapid7

    Launch of Insight Platform and InsightIDR

    Unveils the cloud-native Insight platform, introducing InsightIDR for user behavior analytics and cloud SIEM.

  7. 2017Rapid7

    Acquisition of Komand for Security Automation (SOAR)

    Acquires orchestration startup Komand, launching InsightConnect to automate SOC response workflows.

  8. 2018Abnormal AI

    Abnormal Founded

    Evan Reiser and Sanjay Jeyakumar start the company in late 2018, incubated at Greylock's offices, under the name Abnormal AI; it soon becomes Abnormal Security.

  9. 2019Abnormal AI

    Launch With $24M Series A

    Abnormal Security comes out of stealth in November 2019 with a $24 million Series A led by Greylock.

  10. 2019Rapid7

    Rapid Expansion of Managed Detection and Response (MDR)

    Establishes 24/7 global SOC centers, scaling turnkey MDR services for mid-market and enterprise clients.

  11. 2020Abnormal AI

    $50M Series B Led by Menlo Ventures

    Abnormal raises a $50 million Series B led by Menlo Ventures in November 2020 after tripling ARR during the year; Forbes reported a valuation above $500 million.

  12. 2020Rapid7

    Acquisition of DivvyCloud for Cloud Security

    Acquires DivvyCloud for $145M, establishing InsightCloudSec for multi-cloud posture management (CSPM).

  13. 2021Rapid7

    Acquisition of IntSights for Threat Intelligence

    Acquires IntSights for $335M to embed contextual external threat intelligence into the Insight platform.

  14. 2022Abnormal AI

    $210M Series C at $4B Valuation

    Insight Partners leads a $210 million Series C in May 2022 at a $4 billion valuation, after Abnormal tripled ARR and doubled headcount in 2021.

  15. 2023Abnormal AI

    ARR Passes $100M

    Abnormal says in August 2023 that ARR has passed $100 million and hires former Forescout CEO Michael DeCesare as president.

  16. 2023Rapid7

    Launch of AI-Driven SecOps and Threat Detection

    Integrates machine learning across InsightIDR to automate alert correlation and cut false positive alerts.

  17. 2024Abnormal AI

    $250M Series D at $5.1B Valuation

    Wellington Management leads a $250 million Series D in August 2024 at a $5.1 billion valuation; ARR has passed $200 million and customers exceed 2,400.

  18. 2024Rapid7

    Annual Revenue Surpasses $777M with Record Free Cash Flow

    Delivers $777M in revenue, scales ARR past $796M, and expands global MDR operations.

  19. 2025Abnormal AI

    Rebrand to Abnormal AI

    In April 2025 the company returns to its original name, Abnormal AI, and changes its legal name to Abnormal AI, Inc.

  20. 2025Abnormal AI

    FedRAMP Moderate Authorization

    Abnormal achieves FedRAMP Moderate authorization in April 2025, followed by GovRAMP Moderate authorization in September 2025.

  21. 2025Abnormal AI

    AI Agents and Germany Expansion

    Abnormal launches AI Phishing Coach and AI Data Analyst agents in April 2025 and expands operations into Germany.

  22. 2026Abnormal AI

    Attune 1.0 Behavioral Model

    Abnormal reports more than 4,500 customers, including over 25% of the Fortune 500, and the launch of Attune 1.0, a behavioral foundation model.

  23. 2026Abnormal AI

    Anthropic Logo Lawsuit

    Anthropic sues Abnormal in July 2026, alleging its 2025 logo copies Anthropic's branding.

  24. 2026Abnormal AI

    Identity and AI Security Products

    In July 2026 Abnormal launches Identity Threat Protection, AI Governance and Infiltration Prevention.

  25. 2026Abnormal AI

    OpenAI Partnership

    Abnormal and OpenAI announce a partnership in August 2026; Abnormal joins OpenAI's Daybreak cyber partner program.

  26. 2026Abnormal AI

    SoftBank Resells Abnormal in Japan

    SoftBank Corp. begins offering Abnormal's email security platform to enterprise customers in Japan in September 2026.

  27. 2026Abnormal AI

    AI Security Suite

    In September 2026 Abnormal adds AI Employee Guardrails, AI Agent Security and AI Security Workbench, saying it protects 30% of the Fortune 500.

  28. 2026Rapid7

    Scales Next-Gen Autonomous Cloud Threat Defense

    Deploys real-time offensive-defensive threat correlation across 11,000+ enterprise environments.

Acquisitions

Abnormal AI

No verified acquisitions are listed.

Rapid7

  • Minerva Labs2023$38M
  • Alcide2021$50M
  • IntSights2021$335M
  • DivvyCloud2020$145M
  • Komand2017Undisclosed
  • Logentries2015$68M
All Rapid7 acquisitions

Questions about Abnormal AI vs Rapid7

Who is the CEO of Abnormal AI and Rapid7?

Abnormal AI is led by Evan Reiser and Rapid7 is led by Corey Thomas. Both serve as the top executive responsible for the company's strategy, operations, and financial performance.

When was Abnormal AI founded vs Rapid7?

Rapid7 was founded in 2000 — 18 years before Abnormal AI, which was founded in 2018. Rapid7's longer operating history gives it a deeper track record but also potentially more institutional inertia compared to the younger Abnormal AI.

How many employees does Abnormal AI have compared to Rapid7?

Abnormal AI employs approximately 1,000 people, while Rapid7 employs approximately 2,300. Rapid7 has the larger workforce at 2,300 employees, compared to Abnormal AI's 1,000. A higher headcount does not necessarily imply greater efficiency — it often reflects differences in business model (e.g., manufacturing vs. software).

Where are Abnormal AI and Rapid7 headquartered?

Both Abnormal AI and Rapid7 are headquartered in United States. Their local rules and tax obligations may still differ.

Who founded Abnormal AI and Rapid7?

Abnormal AI was founded by Evan Reiser, Sanjay Jeyakumar. Rapid7 was founded by Alan Matthews, Tas Giakouminakis, Chad Loder.

Which company has a longer operating history — Abnormal AI or Rapid7?

Rapid7 has been operating for approximately 26 years, making it the more established of the two companies. Abnormal AI has been in operation for around 8 years. A longer operating history often signals greater institutional resilience and brand recognition, though it can also mean slower adaptation to new market conditions.

Figures come from each company's filings and the sources linked beside them. Amounts reported in another currency are shown in US dollars at an approximate rate and marked with ~. Back to the Abnormal AI vs Rapid7 overview

Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.