Sam Dubinsky, Principal at SDFX Ventures is an active investor based in New York, New York. This profile covers what Sam Dubinsky backs, at which stage, and how founders can reach out in 2026.
Sam Dubinsky is a Principal at SDFX Ventures with a 20-year investment career across various sectors and is a crypto enthusiast.
Sam Dubinsky invests in SaaS & Enterprise, Climate & Energy, Manufacturing & Industrial and Crypto & Web3, typically at Early Stage Venture, Seed and Series A.
- Location
- New York, New York
- Typical check
- $500K
What does Sam Dubinsky invest in?
- Investor type
- VCFamily Office
Where is Sam Dubinsky based?
Sam Dubinsky is based in New York, New York.
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- Startup investors in New York CityStartup investors in the United States
How to reach Sam Dubinsky
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Round Funded. "Sam Dubinsky." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/sam-dubinsky
Frequently Asked Questions
Who is Sam Dubinsky?
Sam Dubinsky, Principal at SDFX Ventures is an active investor based in New York, New York. Sam Dubinsky invests in SaaS & Enterprise, Climate & Energy, Manufacturing & Industrial and Crypto & Web3, typically at Early Stage Venture, Seed and Series A.
What does Sam Dubinsky invest in?
Sam Dubinsky invests in SaaS & Enterprise, Climate & Energy, Manufacturing & Industrial and Crypto & Web3, typically at Early Stage Venture, Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Sam Dubinsky invest at?
Sam Dubinsky typically invests at Early Stage Venture, Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Sam Dubinsky's typical check size?
Sam Dubinsky typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
Where is Sam Dubinsky based?
Sam Dubinsky is based in New York, New York.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.
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