People · Operator

Brian MacDonald

Named in public records as an officer, director or promoter · active 2009–2023 · Biotechnology, Pharmaceuticals, Sports & Fitness, Other Technology

4
Companies
10
Filings
$41.7M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Merganser Biotech, Inc.BiotechnologySeries A$21.1M$473.5M2015
Zelos Therapeutics IncPharmaceuticalsSeries A$17.8M$75.0M2009
Safer Sports, Inc.Sports & FitnessSeed$2.6M$13.4M2022
Prosolia North America, Inc.Other TechnologyPre-Seed$200K$8.5M2009
Operator network

Brian MacDonald at the center, the companies they're named on, and every other operator named alongside them — an interlock map of shared founding teams, boards and funds. Name-matched, so treat as a research lead.

James Topper · 12 companies · 1 sharedJames TopperJeffrey Bird · 5 companies · 1 sharedJeffrey BirdMarkus Goebel · 4 companies · 1 sharedMarkus GoebelColin Goddard · 5 companies · 2 sharedColin GoddardJoseph Zakrzewski · 6 companies · 1 sharedJoseph ZakrzewskiFarah Champsi · 5 companies · 1 sharedFarah ChampsiAlex Barkas · 3 companies · 1 sharedAlex BarkasDavid Krause · 3 companies · 1 sharedDavid KrauseDonald Hayden · 3 companies · 1 sharedDonald HaydenJaisim Shah · 3 companies · 1 sharedJaisim ShahJeff Courtney · 3 companies · 1 sharedJeff CourtneyAlan Roemer · 2 companies · 1 sharedAlan RoemerCynthia Lavoie · 2 companies · 1 sharedCynthia LavoieJeffrey Courtney · 2 companies · 1 sharedJeffrey CourtneyJoan Lau · 1 companies · 1 sharedJoan LauLily Lam · 1 companies · 1 sharedLily LamJoseph Hegener · 1 companies · 1 sharedJoseph HegenerJustin Bert · 1 companies · 1 sharedJustin BertAri Citrin · 1 companies · 1 sharedAri CitrinJesus Pedro Gil · 1 companies · 1 sharedJesus Pedro GilJuan Carlos Guaita · 1 companies · 1 sharedJuan Carlos GuaitaJulian Bailliet · 1 companies · 1 sharedJulian BaillietMerganser Biotech, Inc. · $21.1M raisedMerganser Biotech, In…Zelos Therapeutics Inc · $17.8M raisedZelos Therapeutics IncSafer Sports, Inc. · $2.6M raisedSafer Sports, Inc.Prosolia North America, Inc. · $0.2M raisedProsolia North Americ…Brian MacDonaldBM
Brian MacDonald Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

People named alongside Brian MacDonald on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.

OperatorSharedTheir companies
Colin Goddard25
James Topper112
Joseph Zakrzewski16
Jeffrey Bird15
Farah Champsi15
Markus Goebel14
Jaisim Shah13
Donald Hayden13
Jeff Courtney13
Alex Barkas13
David Krause13
Jeffrey Courtney12
Cynthia Lavoie12
Alan Roemer12
Ari Citrin11
Remy Sukhija11
Joseph Hegener11
Justin Bert11
Nicholas Esayian11
Joan Lau11

People are matched by normalized name across records; a common name may merge distinct individuals. Treat as a research lead, the same way modeled valuations are directional, not quoted.