Boris S
Angel investor in San Francisco
San Francisco, California
Boris S, Angel investor in San Francisco is an active investor based in San Francisco, California. This profile covers what Boris S backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPEFinance OperatorFounderInvestor
- Stages
- Seed
- Invests in
- FintechWealthTechHealthcare & BiotechBiotech & PharmaSaaS & EnterpriseConsumer & RetailConsumer Goods (CPG)Robotics & Automation
- Location
- San Francisco, California
- Typical check
- $250K
- Past investments
- 13
Notable investments
SendBirdPrecious
Le ToteGreenhouse
Coinbase
Flexport
Slack
Shippo
Rappi
Instacart
Rainforest
MemeboxHow to reach Boris S
Angels and operators like Boris S reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded Accelerator.
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Frequently Asked Questions
What does Boris S invest in?
Boris S invests in Fintech, WealthTech, Healthcare & Biotech and Biotech & Pharma, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Boris S invest at?
Boris S typically invests at Seed. Lead with traction that fits the stage when you reach out.
What is Boris S's typical check size?
Boris S typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
How do I contact Boris S?
Unlock Boris S's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.