People · Operator

William Joseph O'Brien

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

1
Companies
1
Filings
$420K
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Hedy Cyber, Inc.—CybersecurityPre-Seed$420K$1.2M2025
Operator network

William Joseph O'Brien 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.

Khanh Joseph Mai · 1 companies · 1 sharedKhanh Joseph MaiHedy Cyber, Inc. · $0.4M raisedHedy Cyber, Inc.William Joseph O'BrienWO
William Joseph O'Brien Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Khanh Joseph Mai11

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.

William Joseph O'Brien — companies, boards & venture network · Provath