People · Operator

Hans Keirstead

Named in public records as an officer, director or promoter · active 2012–2024 · Biotechnology

3
Companies
5
Filings
$61.9M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
AiVita Biomedical, Inc.BiotechnologySeries B$39.5M$95.6M2019
Immunis, Inc.BiotechnologySeries B$20.4M$147.9M2024
California Stem Cell IncBiotechnologySeed$1.9M$86.6M2012
Operator network

Hans Keirstead 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.

Alexander B. Suh · 3 companies · 1 sharedAlexander B. SuhAlexander Suh · 3 companies · 1 sharedAlexander SuhPhilippe Schaison · 3 companies · 1 sharedPhilippe SchaisonScott Burell · 3 companies · 1 sharedScott BurellCHRIS FIBIGER · 2 companies · 1 sharedCHRIS FIBIGERHans S. Keirstead · 2 companies · 1 sharedHans S. KeirsteadMatthew Katz · 2 companies · 1 sharedMatthew KatzPaul Jenkinson · 2 companies · 1 sharedPaul JenkinsonEd B. Inal · 1 companies · 1 sharedEd B. InalGabriel S. Nistor · 1 companies · 1 sharedGabriel S. NistorSusan B. Bloomfield · 1 companies · 1 sharedSusan B. Bloomfie…Ungbae B. Lee · 1 companies · 1 sharedUngbae B. LeeUngbae Lee · 1 companies · 1 sharedUngbae LeeDaniel Kraft · 3 companies · 1 sharedDaniel KraftTakahide Koda · 3 companies · 1 sharedTakahide KodaGabriel Nistor · 1 companies · 1 sharedGabriel NistorChristopher Airriess · 1 companies · 1 sharedChristopher Airri…David Frosh · 1 companies · 1 sharedDavid FroshJason Livingston · 1 companies · 1 sharedJason LivingstonMark Surfas · 1 companies · 1 sharedMark SurfasAiVita Biomedical, Inc. · $39.5M raisedAiVita Biomedical, In…Immunis, Inc. · $20.4M raisedImmunis, Inc.California Stem Cell Inc · $1.9M raisedCalifornia Stem Cell …Hans KeirsteadHK
Hans Keirstead Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Takahide Koda13
Alexander B. Suh13
Scott Burell13
Alexander Suh13
Daniel Kraft13
Philippe Schaison13
Paul Jenkinson12
Hans S. Keirstead12
Matthew Katz12
CHRIS FIBIGER12
Jason Livingston11
Gabriel S. Nistor11
Gabriel Nistor11
Ungbae Lee11
Susan B. Bloomfield11
Ungbae B. Lee11
Ed B. Inal11
Christopher Airriess11
David Frosh11
Mark Surfas11

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.