People · Operator

Martin Rosenzweig

Named in public records as an officer, director or promoter · active 2024–2025 · Software / Tech

1
Companies
2
Filings
$32.8M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Ria Technology Management Inc.Software / TechSeries B$32.8M$39.0M2024
Operator network

Martin Rosenzweig 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.

Michael Balmuth · 5 companies · 1 sharedMichael BalmuthCarol Vallone · 2 companies · 1 sharedCarol ValloneWilliam Stapleton · 2 companies · 1 sharedWilliam StapletonAimee Peters · 1 companies · 1 sharedAimee PetersDavid Deacon · 1 companies · 1 sharedDavid DeaconJohn Mendelson · 1 companies · 1 sharedJohn MendelsonMike Stapleton · 1 companies · 1 sharedMike StapletonRobert Nix · 1 companies · 1 sharedRobert NixSusan Harrington · 1 companies · 1 sharedSusan HarringtonThomas Nix · 1 companies · 1 sharedThomas NixRia Technology Management Inc. · $32.8M raisedRia Technology Manage…Martin RosenzweigMR
Martin Rosenzweig Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Michael Balmuth15
William Stapleton12
Carol Vallone12
John Mendelson11
Susan Harrington11
Aimee Peters11
Mike Stapleton11
Thomas Nix11
David Deacon11
Robert Nix11

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.