What does Bob Rosin invest in?

Bob Rosin at Defy.vc (San Francisco Bay Area, California, United States) — sector focus: SaaS.

How do I contact Bob Rosin?

Bob Rosin's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.

Where is Bob Rosin based?

Bob Rosin is based in San Francisco Bay Area, California, United States.

Bob Rosin, Defy.vc — Investor Profile

About Bob Rosin

Bob Rosin is a Partner at Defy.vc, an early-stage venture capital firm with $400M under management focused on emerging technology businesses, where he has served since August 2020. His investment thesis targets pre-seed through Series A companies in SaaS, sales and CRM, security, cloud infrastructure, and consumer internet, primarily within the United States. Typical check sizes range from $3 million to $10 million, though his specific lead or follow behavior is not explicitly documented. Notable portfolio companies include Stripe, which became a unicorn, as well as Tenor (acquired by Google), MindMeld (acquired by Cisco), and Cursor Data. Rosin distinguishes himself through extensive operating experience as a former VP of Business Development at LinkedIn, Head of Partnerships at Stripe, and VP at Microsoft/Skype, having also founded three startups that raised over $130M. He currently serves as Managing Partner at Antler US, focusing on pre-seed investments and co-founder matching after leaving Defy.vc in 2025.

Bob Rosin at a glance

Role: Partner
Organization: Defy.vc
Location: San Francisco Bay Area, California, United States
Investor type: Venture Capital
Focus areas: SaaS

Frequently asked about Bob Rosin

What does Bob Rosin invest in?: Bob Rosin at Defy.vc (San Francisco Bay Area, California, United States) — sector focus: SaaS.
How do I contact Bob Rosin?: Bob Rosin's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.
Where is Bob Rosin based?: Bob Rosin is based in San Francisco Bay Area, California, United States.

This profile is part of the StartupFundraising investor database: focus, portfolio history, disclosed location and contact routes, refreshed as new filings and rounds are ingested. Founders use it to check fit before reaching out and to find investors in San Francisco Bay Area.

Bob Rosin, Defy.vc

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