Alexander Kostin vs Mark O Sullivan

Alexander Kostin vs Mark O Sullivan

Alexander Kostin is a individual/angel based in Natick, MA, United States. Mark O Sullivan is a individual/angel based in New York across 70 portfolio companies. Sector focus diverges: Alexander Kostin concentrates on generalist deals and Mark O Sullivan on Fintech and Proptech.

• Investor type: Alexander Kostin — Individual/Angel; Mark O Sullivan — Individual/Angel
• Headquarters: Alexander Kostin — Natick, MA, United States; Mark O Sullivan — New York
• Portfolio companies: Alexander Kostin — not disclosed; Mark O Sullivan — 70
• Sectors: Alexander Kostin — not disclosed; Mark O Sullivan — Fintech, Proptech

• Alexander Kostin — Individual/Angel · Natick, MA, United States · Alexander Kostin portfolio
• Mark O'Sullivan — Individual/Angel · New York · 70 tracked deals · Mark O Sullivan portfolio

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