People · Operator

Justin Esterberg

Named in public records as an officer, director or promoter · active 2019–2020 · Biotechnology

1
Companies
3
Filings
$109.1M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Carlsmed, Inc.BiotechnologySeries C$109.1M$645.4M2019
Operator network

Justin Esterberg 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.

Jonathan Root · 16 companies · 1 sharedJonathan RootKevin Sidow · 7 companies · 1 sharedKevin SidowALEXANDER ARROW · 5 companies · 1 sharedALEXANDER ARROWRobert Mittendorff · 5 companies · 1 sharedRobert MittendorffPhilip Young · 4 companies · 1 sharedPhilip YoungJeffrey Roh · 2 companies · 1 sharedJeffrey RohDurall Scott · 1 companies · 1 sharedDurall ScottJonathon Root · 1 companies · 1 sharedJonathon RootKevin O'Boyle · 1 companies · 1 sharedKevin O'BoyleLeonard Greenstein · 1 companies · 1 sharedLeonard GreensteinMark Singer · 1 companies · 1 sharedMark SingerMichael Cordonnier · 1 companies · 1 sharedMichael CordonnierNiall Casey · 1 companies · 1 sharedNiall CaseyShariq Hussain · 1 companies · 1 sharedShariq HussainSharon Schulzki · 1 companies · 1 sharedSharon SchulzkiCarlsmed, Inc. · $109.1M raisedCarlsmed, Inc.Justin EsterbergJE
Justin Esterberg Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Jonathan Root116
Kevin Sidow17
ALEXANDER ARROW15
Robert Mittendorff15
Philip Young14
Jeffrey Roh12
Leonard Greenstein11
Durall Scott11
Niall Casey11
Michael Cordonnier11
Sharon Schulzki11
Shariq Hussain11
Mark Singer11
Jonathon Root11
Kevin O'Boyle11

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.