Brian Halak
InvestorFounderManaging Partner at Medical Excellence Capital · Partner at Domain Associates · Co-Founder at Nobiastx
Wayne, Pennsylvania, United States
Writes $100K – $5M checks · typically $1.5M
FoundedNobiastx
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About
Managing Partner who joined MEC in 2021 and has been a Partner at Domain Associates since 2006, where he invested in and helped create over a dozen companies including Tobira Therapeutics and WindMIL Therapeutics. Holds a B.S.E. from the University of Pennsylvania and a Ph.D. in immunology from Thomas Jefferson University.
Contact· published on Brian's own website
Invests in
AI & Machine LearningBiotechHealthtechMedical Devices
Co-Founder at Nobiastx
Intro paths
In turn, Brian can intro founders to Nobiastx's investors below.
Nobiastx's investors · 1
Co-founders at Nobiastx

Deals · 3
SonoTheraBoard seat
via Domain Associates · filed Jun 2026 · $125.5M raise
Kona MedicalBoard seat
via Domain Associates · filed Sep 2015 · $22.4M raise
Bionano GenomicsBoard seat
via Domain Associates · filed Jan 2015 · $68.4M raise
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Investor
Alimera SciencesCarticept MedicalCorridor PharmaceuticalsDicerna PharmaceuticalsEddingpharm (Cayman)Esprit PharmaImmunitas TherapeuticsOraya TherapeuticsVanda Pharmaceuticals
Sources: SEC Form D filings · curated public sources.
Colleagues at Medical Excellence Capital
Network5
Investors connected to Brian in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Brian Halak?
- Managing Partner who joined MEC in 2021 and has been a Partner at Domain Associates since 2006, where he invested in and helped create over a dozen companies including Tobira Therapeutics and WindMIL Therapeutics. Holds a B.S.E. from the University of Pennsylvania and a Ph.D. in immunology from Thomas Jefferson University.
- Where does Brian Halak work?
- Brian Halak is Co-Founder of Nobiastx and Managing Partner at Medical Excellence Capital and Partner at Domain Associates.
- What does Brian Halak invest in?
- Brian Halak invests in AI & Machine Learning, Biotech, Healthtech, Medical Devices.
- What check size does Brian Halak write?
- Brian Halak typically writes checks of $100K – $5M.
- What companies did Brian Halak found?
- Brian Halak founded Nobiastx.
- What boards does Brian Halak sit on?
- Brian Halak holds tracked board seats at Bionano Genomics, Kona Medical, SonoThera.
- What companies has Brian Halak invested in?
- Investments tracked here include Alimera Sciences, Bionano Genomics, Carticept Medical, Corridor Pharmaceuticals, Dicerna Pharmaceuticals, Eddingpharm (Cayman), Esprit Pharma, Immunitas Therapeutics, Kona Medical, Oraya Therapeutics, SonoThera, Vanda Pharmaceuticals.
Founder mafias
Thomas Jefferson University mafia10
Also came through, then founded or led a company.
ThirdLaw Molecular mafia3
Also came through, then founded or led a company.
Domain Associates mafia2
Also came through, then founded or led a company.
Medical Excellence Capital mafia2
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Medical Excellence Capital's own website, regulatory filings and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights



















