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
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About this profile
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Cite this page
Round Funded. "Jack Nielsen." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jack-bech-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 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.