Sam Valtenbergs
Principal at Private Family Office (Confidential)
San Francisco, United States
Sam Valtenbergs, Principal at Private Family Office (Confidential) is an active investor based in San Francisco, United States. This profile covers what Sam Valtenbergs backs, at which stage, and how founders can reach out in 2026.
Sam Valtenbergs is a Principal at a confidential private family office and previously led Research Engineering for Mellon Investments.
Sam Valtenbergs invests in Artificial Intelligence, Developer Tools & Data and Fintech, typically at Early Stage Venture and Late Stage Venture.
- Investor type
- Family Office
- Stages
- Early Stage VentureLate Stage Venture
- Invests in
- Artificial IntelligenceDeveloper Tools & DataFintech
- Location
- San Francisco, United States
- Typical check
- $3.8M
How to reach Sam Valtenbergs
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Round Funded. "Sam Valtenbergs." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/sam-valtenbergs
Frequently Asked Questions
Who is Sam Valtenbergs?
Sam Valtenbergs, Principal at Private Family Office (Confidential) is an active investor based in San Francisco, United States. Sam Valtenbergs invests in Artificial Intelligence, Developer Tools & Data and Fintech, typically at Early Stage Venture and Late Stage Venture.
What does Sam Valtenbergs invest in?
Sam Valtenbergs invests in Artificial Intelligence, Developer Tools & Data and Fintech, typically at Early Stage Venture and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Sam Valtenbergs invest at?
Sam Valtenbergs typically invests at Early Stage Venture and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Sam Valtenbergs's typical check size?
Sam Valtenbergs typically writes checks around $3.8M. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
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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.