People · Operator

Derek Maetzold

Named in public records as an officer, director or promoter · active 2010–2019 · Biotechnology, Other

2
Companies
16
Filings
$63.7M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Castle Biosciences IncBiotechnologySeries A$59.0M$361.5M2010
Assurance Biosciences, Inc.OtherSeed$4.7M$34.8M2010
Operator network

Derek Maetzold 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.

Garheng Kong · 16 companies · 1 sharedGarheng KongDaniel Bradbury · 7 companies · 1 sharedDaniel BradburyJOSEPH C. COOK, JR. · 5 companies · 1 sharedJOSEPH C. COOK, J…Joseph C. Cook, III · 4 companies · 1 sharedJoseph C. Cook, I…Bonnie Anderson · 3 companies · 1 sharedBonnie AndersonMara Aspinall · 3 companies · 1 sharedMara AspinallJoe Cook, Jr. · 2 companies · 1 sharedJoe Cook, Jr.Bernhard E. Spiess · 1 companies · 1 sharedBernhard E. SpiessDaniel M. Bradbury · 1 companies · 1 sharedDaniel M. BradburyDavid C. Kabakoff, Ph.D. · 1 companies · 1 sharedDavid C. Kabakoff…Derek J. Maetzold · 1 companies · 1 sharedDerek J. MaetzoldFederico E. Monzon, M.D., FCAP · 1 companies · 1 sharedFederico E. Monzo…Frank C. Stokes · 1 companies · 1 sharedFrank C. StokesG. Bradley Cole · 1 companies · 1 sharedG. Bradley ColeJoseph Cook, Jr. · 1 companies · 1 sharedJoseph Cook, Jr.Stephen Schwartz · 3 companies · 1 sharedStephen SchwartzCastle Biosciences Inc · $59.0M raisedCastle Biosciences IncAssurance Biosciences, Inc. · $4.7M raisedAssurance Biosciences…Derek MaetzoldDM
Derek Maetzold Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Garheng Kong116
Daniel Bradbury17
JOSEPH C. COOK, JR.15
Joseph C. Cook, III14
Bonnie Anderson13
Stephen Schwartz13
Mara Aspinall13
Joe Cook, Jr.12
G. Bradley Cole11
Derek J. Maetzold11
Joseph Cook, Jr.11
Daniel M. Bradbury11
David C. Kabakoff, Ph.D.11
Frank C. Stokes11
Bernhard E. Spiess11
Federico E. Monzon, M.D., FCAP11

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.