Founder Profile
Tas Giakouminakis
Last reviewed: October 2026 · By Swet Parvadiya
Who is Tas Giakouminakis?
Tas Giakouminakis is a founder of Rapid7, which was founded in 2000 with Alan Matthews and Chad Loder.
- Company founded
- Rapid7
- Founded
- 2000
- Co-founders
- Alan Matthews and Chad Loder
Founding Story
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. As CTO, he served as the primary architect behind Rapid7's core vulnerability assessment technology, including the proprietary Nexpose vulnerability scanning engine. His engineering roadmap emphasized exploit-based risk prioritization rather than static severity scores, setting the technical standard for modern vulnerability management. Giakouminakis guided Rapid7's technology evolution from on-premises hardware appliances to the multi-tenant Insight Cloud Platform.
Sources
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