People · Operator

Stephen Altmann

Named in public records as an officer, director or promoter · active 2009–2025 · Other

3
Companies
3
Filings
$90.7M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Lydian International LtdOtherSeries C$84.7M$943.0M2016
Ecu Silver Mining IncOtherSeed$4.0M$74.1M2009
Mundoro Capital IncOtherPre-Seed$2.0M$738K2025
Operator network

Stephen Altmann 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.

Marc Henderson · 5 companies · 1 sharedMarc HendersonPeter Mullens · 4 companies · 1 sharedPeter MullensEric Lowy · 3 companies · 1 sharedEric LowyTimothy Coughlin · 2 companies · 1 sharedTimothy CoughlinVahan Kololian · 2 companies · 1 sharedVahan KololianBill Abel · 1 companies · 1 sharedBill AbelDouglas Tobler · 1 companies · 1 sharedDouglas ToblerEric C. Lowy · 1 companies · 1 sharedEric C. LowyGordon Wylie · 1 companies · 1 sharedGordon WylieHoward Stevenson · 1 companies · 1 sharedHoward StevensonHuw C. Williams · 1 companies · 1 sharedHuw C. WilliamsHuw Williams · 1 companies · 1 sharedHuw WilliamsDwight Walker · 4 companies · 1 sharedDwight WalkerMichael Mason · 4 companies · 1 sharedMichael MasonTalal Chehab · 2 companies · 1 sharedTalal ChehabCLIFFORD BELANGER · 1 companies · 1 sharedCLIFFORD BELANGERMark Platt · 4 companies · 1 sharedMark PlattChristopher Wong · 3 companies · 1 sharedChristopher WongDonna M. Moroney · 2 companies · 1 sharedDonna M. MoroneySiegfried Weidner · 2 companies · 1 sharedSiegfried WeidnerGraham M. Brown · 1 companies · 1 sharedGraham M. BrownJohn Hoey · 1 companies · 1 sharedJohn HoeyLydian International Ltd · $84.7M raisedLydian International …Ecu Silver Mining Inc · $4.0M raisedEcu Silver Mining IncMundoro Capital Inc · $2.0M raisedMundoro Capital IncStephen AltmannSA
Stephen Altmann Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Marc Henderson15
Peter Mullens14
Michael Mason14
Mark Platt14
Dwight Walker14
Christopher Wong13
Eric Lowy13
Siegfried Weidner12
Vahan Kololian12
Donna M. Moroney12
Talal Chehab12
Timothy Coughlin12
Michael M. Calyniuk11
Howard Stevenson11
Bill Abel11
Douglas Tobler11
Tim Altmann11
Huw C. Williams11
Peter C. Mullens11
Marc C. Henderson11

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.