People · Operator

Daniel J. Hennessy

Named in public records as an officer, director or promoter · active 2010–2025 · Manufacturing, Business Services

3
Companies
4
Filings
$286.2M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Thermon Group Holdings, Inc.ManufacturingSeries D+$140.0M$1.5B2010
Dura-Line Holdings, Inc.ManufacturingSeries C$96.6M$1.1B2012
Innventure, Inc.Business ServicesSeries B$49.6M$46.8M2025
Operator network

Daniel J. Hennessy 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 A Cooper · 4 companies · 1 sharedJames A CooperCharles A. Sorrentino · 1 companies · 1 sharedCharles A. Sorren…Brian P. Simmons · 3 companies · 2 sharedBrian P. SimmonsLaura J. Lester · 2 companies · 2 sharedLaura J. LesterMarcus J. George · 2 companies · 2 sharedMarcus J. GeorgeRobert C. Griffin · 2 companies · 1 sharedRobert C. GriffinJohn Scott · 11 companies · 1 sharedJohn ScottElizabeth Williams · 9 companies · 1 sharedElizabeth WilliamsMichael Otworth · 5 companies · 1 sharedMichael OtworthJames Donnally · 4 companies · 1 sharedJames DonnallyBruce Brown · 3 companies · 1 sharedBruce BrownGregory Haskell · 3 companies · 1 sharedGregory HaskellGregory W. Haskell · 2 companies · 1 sharedGregory W. HaskellJames O. Donnally · 2 companies · 1 sharedJames O. DonnallyRoland Austrup · 2 companies · 1 sharedRoland AustrupSuzanne Niemeyer · 2 companies · 1 sharedSuzanne NiemeyerAaron Berg · 1 companies · 1 sharedAaron BergBruce O. Brown · 1 companies · 1 sharedBruce O. BrownBruce William Brown · 1 companies · 1 sharedBruce William Bro…Daniel Hennessy · 1 companies · 1 sharedDaniel HennessyDaniel William Hennessy · 1 companies · 1 sharedDaniel William He…David William Yablunosky · 1 companies · 1 sharedDavid William Yab…Thermon Group Holdings, Inc. · $140.0M raisedThermon Group Holding…Dura-Line Holdings, Inc. · $96.6M raisedDura-Line Holdings, I…Innventure, Inc. · $49.6M raisedInnventure, Inc.Daniel J. HennessyDH
Daniel J. Hennessy Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Brian P. Simmons23
Laura J. Lester22
Marcus J. George22
John Scott111
Elizabeth Williams19
Michael Otworth15
James A Cooper14
James Donnally14
Bruce Brown13
Gregory Haskell13
James O. Donnally12
Suzanne Niemeyer12
Gregory W. Haskell12
Roland Austrup12
Robert C. Griffin12
Michael William Amalfitano11
David W. Yablunosky11
Elizabeth O. Williams11
Michael W. Amalfitano11
Roland O. Austrup11

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.