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Sidney Costabile

Partner·Two Sigma Ventures

Brooklyn, New York, United States

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

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Colin Beirne

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Dan Abelon

Dan Abelon

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Dan Abelon is listed in public profiles as a partner at Two Sigma Ventures focused on data-driven enterprise and consumer startups.

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DP

Dusan Perovic

Partner

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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…

Healthcare AILife sciencesTechbio
EK

Elianna (Elizabeth) Knight

Investor

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Two Sigma Ventures investor with Yale medicine and Stanford statistics/genomics research background.

AIBiotechData infrastructureGenomicsHealthcareQuantum machine learning
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Frances Schwiep

Partner

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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.

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RT

Riz Thakir

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Finance VP overseeing valuations, investor reporting, analytics, and fund operations.

AccountingFund operationsInvestor reportingPerformance analyticsTaxValuations
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Rohit Rao

Investor

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Investor focused on enterprise software, robotics, devices, infrastructure, and DevTools.

DevicesDevToolsEnterprise softwareInfrastructureRoboticsVertical software
XC

Xinyi (Lucy) Ke, CPA

Finance

Two Sigma Ventures

Finance professional focused on VC fund operations, valuations, reporting, and analytics.

AuditFinancial controlsFund operationsInvestor reportingPerformance analyticsPortfolio valuations