People · Operator

Michael Duffy

Named in public records as an officer, director or promoter · active 2013–2024 · Other Technology, Other

4
Companies
9
Filings
$69.9M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Citybase, Inc.Other TechnologySeries A$24.7M$412.2M2016
Barkly Protects, Inc.Other TechnologySeries A$23.3M$180.3M2014
HSP International, Inc.OtherSeries A$20.3M$120.8M2013
NewBold Holdings Group, LLCOtherSeed$1.6M$6.4M2024
Operator network

Michael Duffy 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.

William Conroy · 5 companies · 1 sharedWilliam ConroyJeffrey Taylor · 3 companies · 1 sharedJeffrey TaylorMichael Madden · 3 companies · 1 sharedMichael MaddenTerry Diamond · 3 companies · 1 sharedTerry DiamondDugan Schwalm · 2 companies · 1 sharedDugan SchwalmJosh Mallamud · 2 companies · 1 sharedJosh MallamudDan Diermeier · 1 companies · 1 sharedDan DiermeierDaniel Diermeier · 1 companies · 1 sharedDaniel DiermeierJohn Mandile · 7 companies · 1 sharedJohn MandileThomas E. Noonan · 5 companies · 1 sharedThomas E. NoonanMichael J. Duffy · 2 companies · 1 sharedMichael J. DuffyHarry E. Weller · 1 companies · 1 sharedHarry E. WellerJohn Danahy · 1 companies · 1 sharedJohn DanahyJohn J. Danahy · 1 companies · 1 sharedJohn J. DanahyJohn J. Mandile · 1 companies · 1 sharedJohn J. MandileBenedict Rocchio · 10 companies · 1 sharedBenedict RocchioJohn O'Connor · 10 companies · 1 sharedJohn O'ConnorPaul Flanagan · 6 companies · 1 sharedPaul FlanaganLAWRENCE M. HARDING · 2 companies · 1 sharedLAWRENCE M. HARDI…Gerard M Phelan · 1 companies · 1 sharedGerard M PhelanGerard Phelan · 1 companies · 1 sharedGerard PhelanKeith Howerin · 1 companies · 1 sharedKeith HowerinCitybase, Inc. · $24.7M raisedCitybase, Inc.Barkly Protects, Inc. · $23.3M raisedBarkly Protects, Inc.HSP International, Inc. · $20.3M raisedHSP International, In…NewBold Holdings Group, LLC · $1.6M raisedNewBold Holdings Grou…Michael DuffyMD
Michael Duffy Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
John O'Connor110
Benedict Rocchio110
John Mandile17
Paul Flanagan16
Thomas E. Noonan15
William Conroy15
Jeffrey Taylor13
Michael Madden13
Terry Diamond13
LAWRENCE M. HARDING12
Michael J. Duffy12
Dugan Schwalm12
Josh Mallamud12
Dan Diermeier11
Gerard M Phelan11
John Danahy11
Paul Lipson11
Keith Howerin11
Daniel Diermeier11
Leonardo Brubaker11

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.