People · Operator

Patrick Gallagher

Named in public records as an officer, director or promoter · active 2009–2025 · Other, Software / Tech, Consumer / Retail, Biotechnology, Other Technology, Healthtech

11
Companies
52
Filings
$275.3M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Kueski, Inc.OtherSeries C$94.4M$254.5M2016
BioSig Technologies, Inc.Software / TechSeries A$65.7M$3.4M2014
Ovation.io, Inc.Software / TechSeries B$31.0M$4.9M2024
Branding Brand, Inc.Consumer / RetailSeries A$23.5M$9.0M2013
Protea Biosciences Group, Inc.BiotechnologySeries A$16.6M$22.8M2015
Adaptin Bio, Inc.BiotechnologySeries A$14.7M$4.3M2025
Voltron Therapeutics, Inc.BiotechnologySeed$9.4M$39.3M2019
Algorithm Sciences, Inc.BiotechnologySeed$7.2M$1.9M2019
YouMail, Inc.Other TechnologySeed$7.0M$99.2M2009
Aerwave Medical, Inc.HealthtechSeed$5.5M$45.1M2022
PD Theranostics, Inc.BiotechnologyPre-Seed$508K$5.6M2022
Operator network

Patrick Gallagher 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.

Jeffrey O'Donnell · 7 companies · 3 sharedJeffrey O'DonnellPeter Kellner · 6 companies · 1 sharedPeter KellnerJerome Zeldis · 6 companies · 1 sharedJerome ZeldisRoy Tanaka · 6 companies · 1 sharedRoy TanakaKenneth Londoner · 5 companies · 1 sharedKenneth LondonerAsher Holzer · 4 companies · 1 sharedAsher HolzerPatrick J. Gallagher · 4 companies · 1 sharedPatrick J. Gallag…Samuel Navarro · 4 companies · 1 sharedSamuel NavarroJohn Walker · 17 companies · 1 sharedJohn WalkerDAVID SHAW · 12 companies · 1 sharedDAVID SHAWSoma Somasegar · 5 companies · 1 sharedSoma SomasegarMichael Self · 4 companies · 1 sharedMichael SelfRyan Hinkle · 20 companies · 1 sharedRyan HinkleLeonard Harris · 7 companies · 1 sharedLeonard HarrisStephen Turner · 6 companies · 1 sharedStephen TurnerScott Segal · 5 companies · 1 sharedScott SegalTom Clark · 4 companies · 1 sharedTom ClarkMichael Roberts · 10 companies · 1 sharedMichael RobertsAnthony Zook · 4 companies · 3 sharedAnthony ZookMatthew Eitner · 3 companies · 2 sharedMatthew EitnerMatthew Duffy · 5 companies · 4 sharedMatthew DuffyJames Ahern · 4 companies · 4 sharedJames AhernKueski, Inc. · $94.4M raisedKueski, Inc.BioSig Technologies, Inc. · $65.7M raisedBioSig Technologies, …Ovation.io, Inc. · $31.0M raisedOvation.io, Inc.Branding Brand, Inc. · $23.5M raisedBranding Brand, Inc.Protea Biosciences Group, Inc. · $16.6M raisedProtea Biosciences Gr…Adaptin Bio, Inc. · $14.7M raisedAdaptin Bio, Inc.Voltron Therapeutics, Inc. · $9.4M raisedVoltron Therapeutics,…Algorithm Sciences, Inc. · $7.2M raisedAlgorithm Sciences, I…YouMail, Inc. · $7.0M raisedYouMail, Inc.Aerwave Medical, Inc. · $5.5M raisedAerwave Medical, Inc.PD Theranostics, Inc. · $0.5M raisedPD Theranostics, Inc.Patrick GallagherPG
Patrick Gallagher Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Matthew Duffy45
James Ahern44
Jeffrey O'Donnell37
Anthony Zook34
Matthew Eitner23
Ryan Hinkle120
John Walker117
DAVID SHAW112
Michael Roberts110
Leonard Harris17
Peter Kellner16
Roy Tanaka16
Jerome Zeldis16
Stephen Turner16
Soma Somasegar15
Kenneth Londoner15
Scott Segal15
Tom Clark14
Asher Holzer14
Samuel Navarro14

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.