Jason Rosenthal
Operating Partner at a16z crypto
Menlo Park, California
Jason Rosenthal, Operating Partner at a16z crypto is an active investor based in Menlo Park, California. This profile covers what Jason Rosenthal backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPE
- Stages
- Seed
- Invests in
- Crypto & Web3Developer Tools & Data
- Location
- Menlo Park, California
- Typical check
- $250K
- Past investments
- 4
Notable investments
Protocol LabsSilver Lake PartnersKite & LightningHow to reach Jason Rosenthal
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Cite this page
Round Funded. "Jason Rosenthal." Round Funded investor database, updated September 24, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jason-rosenthal
Frequently Asked Questions
What does Jason Rosenthal invest in?
Jason Rosenthal invests in Crypto & Web3 and Developer Tools & Data, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jason Rosenthal invest at?
Jason Rosenthal typically invests at Seed. Lead with traction that fits the stage when you reach out.
What is Jason Rosenthal's typical check size?
Jason Rosenthal typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
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.
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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.