People · Operator

Sean Donaldson

Named in public records as an officer, director or promoter · active 2021–2025 · Cybersecurity

1
Companies
6
Filings
$14.4M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Ostra Cybersecurity, Inc.CybersecuritySeries A$14.4M$11.3M2021
Operator network

Sean Donaldson 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 Kennedy · 10 companies · 1 sharedMichael KennedyJeremy L. Friese · 3 companies · 1 sharedJeremy L. FrieseJoseph Johnson · 3 companies · 1 sharedJoseph JohnsonMichael Jennings · 2 companies · 1 sharedMichael JenningsAndrew Tewksbury · 1 companies · 1 sharedAndrew TewksburyChris L. Trapp · 1 companies · 1 sharedChris L. TrappJeffrey Cowan · 1 companies · 1 sharedJeffrey CowanJeffrey D. Cowan · 1 companies · 1 sharedJeffrey D. CowanJoseph D. Johnson · 1 companies · 1 sharedJoseph D. JohnsonMichael D. Kennedy · 1 companies · 1 sharedMichael D. KennedyMichael L. Jennings · 1 companies · 1 sharedMichael L. Jennin…Sean L. Donaldson · 1 companies · 1 sharedSean L. DonaldsonOstra Cybersecurity, Inc. · $14.4M raisedOstra Cybersecurity, …Sean DonaldsonSD
Sean Donaldson Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Michael Kennedy110
Jeremy L. Friese13
Joseph Johnson13
Michael Jennings12
Andrew Tewksbury11
Sean L. Donaldson11
Michael L. Jennings11
Jeffrey Cowan11
Jeffrey D. Cowan11
Chris L. Trapp11
Joseph D. Johnson11
Michael D. Kennedy11

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.