/People

Brian Halak

InvestorFounder

Managing 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

Find your path to Brian

Sign up to see every warm intro you have to Brian

  • Paths you didn't know you had: your email and LinkedIn already hold routes to Brian. We find them for you
  • 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
  • Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone

Days of research, done the moment you sign in, with every route ranked by how warm it is.

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

HHHakon Hakonarson
Hakon HakonarsonCo-Founder and Chief Scientific Advisor

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

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