People · Operator

Joan Callahan

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

1
Companies
1
Filings
$3.0M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Diagnostic ID, LLCOther TechnologySeed$3.0M$5.9M
Operator network

Joan Callahan 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.

Mike Harmon · 2 companies · 1 sharedMike HarmonPeter Knapp · 2 companies · 1 sharedPeter KnappJim Kearney · 1 companies · 1 sharedJim KearneyKen Cerney · 1 companies · 1 sharedKen CerneyTheodore Schenberg · 1 companies · 1 sharedTheodore SchenbergTravis Morgan · 1 companies · 1 sharedTravis MorganDiagnostic ID, LLC · $3.0M raisedDiagnostic ID, LLCJoan CallahanJC
Joan Callahan Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Peter Knapp12
Mike Harmon12
Theodore Schenberg11
Travis Morgan11
Jim Kearney11
Ken Cerney11

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.