People · Operator

Mark P. McWilliams

Named in public records as an officer, director or promoter · active 2012–2013 · Other Health Care

1
Companies
6
Filings
$7.9M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Spectrascience IncOther Health CareSeed$7.9M$31.0M2012
Operator network

Mark P. McWilliams 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.

John Pappajohn · 10 companies · 1 sharedJohn PappajohnTommy Thompson · 5 companies · 1 sharedTommy ThompsonMark McWilliams · 4 companies · 1 sharedMark McWilliamsChester E. Sievert, Jr. · 1 companies · 1 sharedChester E. Siever…Chester Sievert, Jr. · 1 companies · 1 sharedChester Sievert, …Chet Sievert · 1 companies · 1 sharedChet SievertF. Duwaine Townsen · 1 companies · 1 sharedF. Duwaine TownsenJames P. Dorst · 1 companies · 1 sharedJames P. DorstJim Dorst · 1 companies · 1 sharedJim DorstJim Hitchin · 1 companies · 1 sharedJim HitchinLowell W. Giffhorn · 1 companies · 1 sharedLowell W. GiffhornMichael P. Oliver · 1 companies · 1 sharedMichael P. OliverSheldon L. Miller · 1 companies · 1 sharedSheldon L. MillerSheldon Miller · 1 companies · 1 sharedSheldon MillerStanley J. Pappelbaum · 1 companies · 1 sharedStanley J. Pappel…Stanley Pappelbaum · 1 companies · 1 sharedStanley PappelbaumStanley Pappelbaum, MD · 1 companies · 1 sharedStanley Pappelbau…Stan L. Pappelbaum · 1 companies · 1 sharedStan L. PappelbaumSpectrascience Inc · $7.9M raisedSpectrascience IncMark P. McWilliamsMM
Mark P. McWilliams Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
John Pappajohn110
Tommy Thompson15
Mark McWilliams14
F. Duwaine Townsen11
Michael P. Oliver11
Stanley J. Pappelbaum11
James P. Dorst11
Sheldon L. Miller11
Stan L. Pappelbaum11
Chester E. Sievert, Jr.11
Jim Dorst11
Sheldon Miller11
Chet Sievert11
Jim Hitchin11
Stanley Pappelbaum11
Lowell W. Giffhorn11
Chester Sievert, Jr.11
Stanley Pappelbaum, MD11

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.