People · Operator

Mark Grinbaum

Named in public records as an officer, director or promoter · active 2016–2025 · Other

1
Companies
21
Filings
$27.5M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Nyiax, Inc.OtherSeries A$27.5M$775K2016
Operator network

Mark Grinbaum 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.

Thomas O'Neill · 5 companies · 1 sharedThomas O'NeillCarolina Abenante · 2 companies · 1 sharedCarolina AbenanteMichael Garone · 2 companies · 1 sharedMichael GaroneWilliam Wise · 2 companies · 1 sharedWilliam WiseChristopher Hogan · 1 companies · 1 sharedChristopher HoganGraham Mosely · 1 companies · 1 sharedGraham MoselyJoseph Passaic · 1 companies · 1 sharedJoseph PassaicLouis Severine · 1 companies · 1 sharedLouis SeverineRichard Bush · 1 companies · 1 sharedRichard BushRobert Ainbinder · 1 companies · 1 sharedRobert AinbinderSergey Tsoy · 1 companies · 1 sharedSergey TsoyTeri Gallo · 1 companies · 1 sharedTeri GalloTeri Galo · 1 companies · 1 sharedTeri GaloWilliam Feldman · 1 companies · 1 sharedWilliam FeldmanWilliam Schmahl · 1 companies · 1 sharedWilliam SchmahlNyiax, Inc. · $27.5M raisedNyiax, Inc.Mark GrinbaumMG
Mark Grinbaum Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Thomas O'Neill15
William Wise12
Carolina Abenante12
Michael Garone12
Teri Galo11
Christopher Hogan11
Sergey Tsoy11
Teri Gallo11
Joseph Passaic11
Richard Bush11
William Schmahl11
Louis Severine11
Graham Mosely11
Robert Ainbinder11
William Feldman11

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.