Jack Nielsen
Venture investor in Palo Alto
Palo Alto, California
Jack Nielsen, Venture investor in Palo Alto is an active investor based in Palo Alto, California. This profile covers what Jack Nielsen backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCInvestor
- Stages
- Series B
- Invests in
- Healthcare & BiotechMedTech & Medical Devices
- Location
- Palo Alto, California
- Typical check
- $3M
- Past investments
- 23
Notable investments
ProteinSimplePROCEPT BioRobotics
Harmony BiosciencesAnokion SAPanacos PharmaceuticalsTobira Therapeutics, Inc.Ocelot Bio
ALX Oncology
Apollo EndosurgeryKanyos Bio
Neomend
Tobira TherapeuticsHow to reach Jack Nielsen
Angels and operators like Jack Nielsen 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 Accelerator.
Connect with Jack Nielsen
Frequently Asked Questions
What does Jack Nielsen invest in?
Jack Nielsen invests in Healthcare & Biotech and MedTech & Medical Devices, typically at Series B. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jack Nielsen invest at?
Jack Nielsen typically invests at Series B. Lead with traction that fits the stage when you reach out.
What is Jack Nielsen's typical check size?
Jack Nielsen typically writes checks around $3M. Use it as a signal for whether your raise fits their stage.
How do I contact Jack Nielsen?
Unlock Jack Nielsen's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.