Sidney Costabile
Partner·Two Sigma Ventures
Bio
Professional summary
Sidney Costabile joined Two Sigma Ventures in 2023 as a partner to lead investor relations and business development. Before TSV, she was a partner at Artist Capital Management and was an associate and venture partner at Richmond Global Ventures, an early-stage international venture firm. Public Deviation materials state she later became a founding partner at Deviation after the Two Sigma Ventures spinout.
Background
Career, education, and skills
Career history
- Two Sigma VenturesPartner2023 – Present
- Artist Capital ManagementPartner
- Richmond Global VenturesVenture Partner
- Richmond Global VenturesAssociate
- Fintech startupFintech operator and founder
Education
- Dartmouth CollegeA.B. in Classical Chinese Literature
Other partners at Two Sigma Ventures
8 more profiles
Colin Beirne
Partner
Two Sigma Ventures
Colin Beirne is a Partner at Two Sigma Ventures investing in companies using data and advanced computing across sectors including fintech, AI, robotics, real estate, and healthcare.
Dan Abelon
Partner
Two Sigma Ventures
Dan Abelon is listed in public profiles as a partner at Two Sigma Ventures focused on data-driven enterprise and consumer startups.
Dusan Perovic
Partner
Two Sigma Ventures
NOTE: Dusan Perovic has departed Two Sigma Ventures. As of May 2026, he is Founding Partner at Deviation Capital, launched as a spinout of Two Sigma Ventures…
Elianna (Elizabeth) Knight
Investor
Two Sigma Ventures
Two Sigma Ventures investor with Yale medicine and Stanford statistics/genomics research background.
Frances Schwiep
Partner
Two Sigma Ventures
Frances Schwiep is a Partner at Two Sigma Ventures. Public profiles describe her as a former data scientist who partners with founders building B2B applications, infrastructure, applied AI, DataOps, fintech, and vertical software.
Riz Thakir
Vice President - Finance
Two Sigma Ventures
Finance VP overseeing valuations, investor reporting, analytics, and fund operations.
Rohit Rao
Investor
Two Sigma Ventures
Investor focused on enterprise software, robotics, devices, infrastructure, and DevTools.
Xinyi (Lucy) Ke, CPA
Finance
Two Sigma Ventures
Finance professional focused on VC fund operations, valuations, reporting, and analytics.