Sara Holoubek
Founding Partner at Luminary Labs
New York City, New York
Sara Holoubek, Founding Partner at Luminary Labs is an active investor based in New York City, New York. This profile covers what Sara Holoubek backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelOperator
- Stages
- Pre SeedSeed
- Invests in
- Artificial IntelligenceDigital Health & HealthTechConsumer & Retail
- Location
- New York City, New York
- Typical check
- $150K
- Past investments
- 11
Notable investments
QuietlyClue by BiowinkRock Health V5 FundSynergize Insights- Powered by Seam Social LabsEvidation Health
Clue
The Baby Box Co.
iodineThe Baby Box CompanyHow to reach Sara Holoubek
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Round Funded. "Sara Holoubek." Round Funded investor database, updated September 23, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/sara-holoubek
Frequently Asked Questions
What does Sara Holoubek invest in?
Sara Holoubek invests in Artificial Intelligence, Digital Health & HealthTech and Consumer & Retail, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Sara Holoubek invest at?
Sara Holoubek typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is Sara Holoubek's typical check size?
Sara Holoubek typically writes checks around $150K. 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.