Thomas Weisel Venture Partners is a venture capital firm. Team members are concentrated in Alamo, California, United States. Among the 8 companies in the known portfolio are CVRx, Control4, Medsphere Systems, Netuitive, QuatRx Pharmaceuticals and Reactrix.
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Investment focus
- Focus
- BiotechData AnalyticsEnterprise SaaSEntertainmentIoTMedTechMedical DevicesPharma
Who to pitch at Thomas Weisel Venture Partners
Thomas Weisel Venture Partners portfolio companies (8)
- CVRx
- Control4
- Medsphere Systems
- Netuitive
- QuatRx Pharmaceuticals
- Reactrix
- Santur Corporation
- SpinalMotion
Co-investors
Funds that share portfolio companies with Thomas Weisel Venture Partners.
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About Thomas Weisel Venture Partners
The firm's listing covers sectors Consumer, Hardware, Healthcare and SaaS, and focus areas Biotech, Data Analytics, Enterprise SaaS and Entertainment; known deals cluster at Seed and Series A.
John Ragozzino Jr. (Vice President), Michael Bonetti (Managing Director) and Andrew Strobel (Vice President) are listed as the contacts to pitch at Thomas Weisel Venture Partners.
Thomas Weisel Venture Partners shares portfolio companies with 6 other investment firms, among them DaVita Kidney Care, Treo Ventures and Signal Peak Ventures.
Frequently asked questions
What is Thomas Weisel Venture Partners?
Thomas Weisel Venture Partners is a venture capital firm whose team is concentrated in Alamo, California, United States, with a known portfolio of 8 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Thomas Weisel Venture Partners invest in?
Listed sectors include Consumer, Hardware, Healthcare and SaaS; listed focus areas include Biotech, Data Analytics, Enterprise SaaS and Entertainment. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Thomas Weisel Venture Partners invest at?
The known deals of Thomas Weisel Venture Partners include Seed and Series A rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Thomas Weisel Venture Partners?
All 3 people on file at Thomas Weisel Venture Partners are listed as contacts for the firm, each with their own profile page.
How do I contact Thomas Weisel Venture Partners?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 3 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal