Arthur Tzianabos, Venture investor in Boston is an active investor based in Boston, United States. This profile covers what Arthur Tzianabos backs, at which stage, and how founders can reach out in 2026.
Arthur Tzianabos is the CEO of Lifordi Immunotherapeutics, Inc. and a Venture Partner at 5AM Ventures.
Arthur Tzianabos invests in Healthcare & Biotech and Biotech & Pharma, typically at Seed, Series A and Early Stage Venture.
- Investor type
- VC
- Stages
- SeedSeries AEarly Stage Venture
- Invests in
- Healthcare & BiotechBiotech & Pharma
- Location
- Boston, United States
- Typical check
- $500K
How to reach Arthur Tzianabos
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Round Funded. "Arthur Tzianabos." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/arthur-tzianabos
Frequently Asked Questions
Who is Arthur Tzianabos?
Arthur Tzianabos, Venture investor in Boston is an active investor based in Boston, United States. Arthur Tzianabos invests in Healthcare & Biotech and Biotech & Pharma, typically at Seed, Series A and Early Stage Venture.
What does Arthur Tzianabos invest in?
Arthur Tzianabos invests in Healthcare & Biotech and Biotech & Pharma, typically at Seed, Series A and Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Arthur Tzianabos invest at?
Arthur Tzianabos typically invests at Seed, Series A and Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Arthur Tzianabos's typical check size?
Arthur Tzianabos 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.