Bob Rosin
General Partner, Antler US·Antler
Bio
Professional summary
Bob Rosin is General Partner at Antler US. The provided Antler about page is a broad firm page, while Antler's official spokesperson profile provides the strongest individual biography. It describes Rosin as a founder and three-time startup veteran who raised more than $130 million from investors including Sequoia Capital and Marc Andreessen. His company Qik was acquired by Skype, where he became VP of Business Development, and after Microsoft's acquisition of Skype he served as a VP/GM at Microsoft. His profile is most relevant for founders looking for operator-informed early-stage company-building support.
Investment focus
Stage, sector, and overall fit
Stage
Sector
Thesis
Notable companies
Selected portfolio companies the partner has backed
How to approach
Framing and angles for outreach
Pitch framing
Lead with founder capability, early product-market learning, and where operator experience could accelerate company formation or go-to-market.
Partneralization hooks
- 1If relevant, reference communications, marketplace, or B2B software operating lessons from Qik, Skype, and Microsoft.
- 2Emphasize the founding team's ability to execute from zero to one.
Recent signals
What the partner has said or done recently
Official Antler profile identifies him as General Partner at Antler US.
Background
Career, education, and skills
Career history
- AntlerManaging Partner, USSep 2025 - Present
- AntlerGeneral PartnerMay 2025 - Sep 2025
- Defy.vcPartnerAug 2020 - May 2025 (5 years)
- SelfAngel InvestorMay 2011 - Present
- StripeHead of Partnerships, Leadership TeamPrior
- LinkedIn (incl. post-Microsoft acquisition)VP of Business DevelopmentPrior
- Microsoft (Skype division)VP & GMPrior
- SkypeVP of Business DevelopmentPrior
- Qik (acquired by Skype ~$150M)Co-FounderPrior
- InstaworkAdvisor & Interim Head of BDOct 2019 - Aug 2020
- Founder InstituteMentorDec 2009 - Present
Education
- Harvard Business SchoolMBA (1999-2000) — Winner, Dubilier Prize for Entrepreneurship
- Cornell UniversityBA with Distinction in All Subjects, College Scholar (1988-1992) — Magna Cum Laude, Phi Beta Kappa, Triple Major, Cognitive Studies
Skills
Languages
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