Corey Thomas
About Corey Thomas
Corey Thomas is based in Boston. He is Executive Chair of Rapid7, the cybersecurity company he led as CEO and chairman. Before Rapid7 he worked at Parallels, Microsoft, Deloitte Consulting and AT&T. Crunchbase also lists a vice president role at Corel.
He holds a B.E. in electrical engineering and computer science from Vanderbilt University and an MBA from Harvard Business School. He sits on the boards of LPL Financial and Vanderbilt University and chairs the board of Blue Cross Blue Shield of Massachusetts. He has been a member of the Council on Foreign Relations, a director of the Federal Reserve Bank of Boston, and a co-chair of the Aspen Institute's Global Cybersecurity Group.
Aspen Institute and NACD bios describe him as an active angel investor in technology companies. PitchBook lists 8 investments, 6 portfolio companies and 1 exit. Its dated entries run from Ambassador (2014) and CloudZero (2017) through Resilience (2021), OverAI (2020 and 2022), Stackwell (2022) and Furl. Crunchbase counts 5 personal investments. The two databases do not match, and neither publishes check sizes.
His AI investment on the Lounge deals desk is Furl, a $10M Seed round. Furl is a Los Angeles startup that builds agentic AI for security remediation. Its platform takes findings from existing security and IT tools, collects context from endpoints and servers, and carries out fixes with validation built in. Ten Eleven Ventures led the round. Corey Thomas and Open Opportunity Fund took part. The founders previously worked at Rapid7, Automox and Censys. The round was announced in January 2026.
His public record points to early-stage software, mostly in cybersecurity and security-adjacent products. PitchBook's industry tags for his deals include network management software, business and productivity software, financial software and software development applications. Crunchbase and PitchBook list him in Boston. He has not published a check size or a statement of what he looks for, so none is given here.
- Furl: agentic AI for security remediation; took part in its $10M Seed round, announced January 2026.
- CloudZero: business software company; PitchBook lists an early-stage deal in October 2017.
- Ambassador: software development applications; PitchBook lists a seed round in December 2014.
- Resilience: PitchBook lists a November 2021 deal under network management software.
- Stackwell: financial software; PitchBook lists an August 2022 deal.
- OverAI: PitchBook lists deals in December 2020 and October 2022.
- msspalert.com/brief/furl-raises-10m-seed-to-focus-security-on-remediat
- pitchbook.com/profiles/investor/163636-21
- crunchbase.com/person/corey-e-thomas
- aspendigital.org/person/corey-thomas
- nacdonline.org/new-england/new-england-leadership/corey-thomas
- finsmes.com/2026/01/furl-raises-10m-in-seed-funding.html
- pulse2.com/furl-10-million-seed-funding
Investing activity
Corey Thomas appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $10M. The most recent is Furl (Seed, $10M, Sep 2026).
Corey Thomas most often invests alongside Ten Eleven Ventures and Open Opportunity Fund, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Corey Thomas
Who is Corey Thomas the angel investor?
He is Executive Chair of Rapid7 in Boston and was its CEO. He also invests personally in technology startups.
Has Corey Thomas invested in AI startups?
Yes. He took part in Furl's $10M Seed round. Furl builds agentic AI for security remediation, and Ten Eleven Ventures led the round.
What stage does Corey Thomas invest in?
His publicly listed deals include seed rounds (Ambassador, Furl) and an early-stage round (CloudZero). He has not published a formal stage thesis.
What is Corey Thomas's check size?
It is not public. Neither his own profiles nor the databases we found state one.
What sectors does Corey Thomas back?
His disclosed investments are mostly cybersecurity and enterprise or financial software, including Furl, Resilience, CloudZero and Stackwell.
Should security founders pitch Corey Thomas?
His record centers on security and adjacent software, and he has a background running a security company. He has not published pitch guidance, so check how he prefers to be contacted.
Is Corey Thomas an angel investor?
Yes. Corey Thomas invests personally as an angel.
What AI companies has Corey Thomas invested in?
Corey Thomas's AI investments include Furl. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Corey Thomas invest at?
In the rounds tracked on Lounge, Corey Thomas has invested at Seed, with a median round of $10M.
Who does Corey Thomas co-invest with?
Corey Thomas's most frequent co-investors on Lounge are Ten Eleven Ventures (1 deal) and Open Opportunity Fund (1 deal).