People · Operator

Donald Massaro

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

1
Companies
2
Filings
$5.0M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Sendmail IncOther TechnologySeed$5.0M$100.3M2009
Operator network

Donald Massaro 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.

Mark Davis · 11 companies · 1 sharedMark DavisPeter Chung · 8 companies · 1 sharedPeter ChungEdward Hamburg · 3 companies · 1 sharedEdward HamburgEdward C. Hamburg · 2 companies · 1 sharedEdward C. HamburgMerritt Lutz · 2 companies · 1 sharedMerritt LutzChris C. McKay · 1 companies · 1 sharedChris C. McKaySendmail Inc · $5.0M raisedSendmail IncDonald MassaroDM
Donald Massaro Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Mark Davis111
Peter Chung18
Edward Hamburg13
Edward C. Hamburg12
Merritt Lutz12
Chris C. McKay11

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.