John Timmer, Partner at Origin Commercial Ventures is an active investor based in San Diego, California. This profile covers what John Timmer backs, at which stage, and how founders can reach out in 2026.
John Timmer is a Partner at Origin Commercial Ventures with over a decade of experience in the biotech industry, focusing on therapeutic protein development.
John Timmer invests in Healthcare & Biotech and Biotech & Pharma, typically at Early Stage Venture.
- Investor type
- VC
- Stages
- Early Stage Venture
- Invests in
- Healthcare & BiotechBiotech & Pharma
- Location
- San Diego, California
- Typical check
- $500K
How to reach John Timmer
Angels and operators like John Timmer reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
Reach active investors like this one
About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.
Cite this page
Round Funded. "John Timmer." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/john-timmer
Frequently Asked Questions
Who is John Timmer?
John Timmer, Partner at Origin Commercial Ventures is an active investor based in San Diego, California. John Timmer invests in Healthcare & Biotech and Biotech & Pharma, typically at Early Stage Venture.
What does John Timmer invest in?
John Timmer invests in Healthcare & Biotech and Biotech & Pharma, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Timmer invest at?
John Timmer typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is John Timmer's typical check size?
John Timmer 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.