Jason Warner
Angel investor in Brussels
Brussels, Belgium
Jason Warner, Angel investor in Brussels is an active investor based in Brussels, Belgium. This profile covers what Jason Warner backs, at which stage, and how founders can reach out in 2026.
Mr. Jason Warner is a Co-Founder and serves as Co-Chief Executive Officer at Poolside. Mr. Warner serves as Board Member at NEAR Foundation. He serves as Advisor at Dynaboard. He serves as Advisor at Grid.ai and Moderne. Previously, he served as Venture Partner at Unusual Ventures. He served as Chief Technology Officer at GitHub. He was Vice President of Engineering at Heroku and Product Engineering for Ubuntu Desktop and Ubuntu Phone at Canonical. He is an Angel Investor. He graduated in Bachelor of Science in Computer Science from Pennsylvania State University (Penn State) and holds Master of Science in Computer Science from Rensselaer Polytechnic Institute.
- Investor type
- Angel
- Stages
- Early Stage VentureSeed
- Invests in
- Healthcare & BiotechSaaS & EnterpriseConsumer & RetailConsumer Goods (CPG)E-commerce & D2CClimate & EnergyManufacturing & IndustrialMobility & Logistics
- Location
- Brussels, Belgium
- Typical check
- $375K
- Past investments
- 13
Notable investments
How to reach Jason Warner
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About this profile
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Cite this page
Round Funded. "Jason Warner." Round Funded investor database, updated September 8, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jason-warner-437145-9
Frequently Asked Questions
What does Jason Warner invest in?
Jason Warner invests in Healthcare & Biotech, SaaS & Enterprise, Consumer & Retail and Consumer Goods (CPG), typically at Early Stage Venture and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jason Warner invest at?
Jason Warner typically invests at Early Stage Venture and Seed. Lead with traction that fits the stage when you reach out.
What is Jason Warner's typical check size?
Jason Warner typically writes checks around $375K. 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.
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.