Theo Sun, AI Builder at Primary Venture Partners is an active investor based in New York, United States. This profile covers what Theo Sun backs, at which stage, and how founders can reach out in 2026.
Theo Sun is an AI Builder at Primary Venture Partners, focusing on artificial intelligence.
Theo Sun invests in Artificial Intelligence, typically at Early Stage Venture.
- Investor type
- VC
- Stages
- Early Stage Venture
- Invests in
- Artificial Intelligence
- Location
- New York, United States
- Typical check
- $500K
How to reach Theo Sun
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Round Funded. "Theo Sun." Round Funded investor database, updated November 2, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/theo-sun
Frequently Asked Questions
Who is Theo Sun?
Theo Sun, AI Builder at Primary Venture Partners is an active investor based in New York, United States. Theo Sun invests in Artificial Intelligence, typically at Early Stage Venture.
What does Theo Sun invest in?
Theo Sun invests in Artificial Intelligence, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Theo Sun invest at?
Theo Sun typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Theo Sun's typical check size?
Theo Sun typically writes checks around $500K. 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.