People · Operator

William Willis

Named in public records as an officer, director or promoter · active 2009–2025 · Other Health Care, Biotechnology, Healthtech

3
Companies
4
Filings
$161.0M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
iRhythm Technologies, Inc.Other Health CareSeries B$118.6M$605.8M2009
Yor Labs, Inc.BiotechnologySeries B$37.7M$167.0M2019
Rare Air Health, Inc.HealthtechSeries A$4.7M$13.5M2025
Operator network

William Willis 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.

William N. Starling · 5 companies · 1 sharedWilliam N. Starli…Shelly D. Guyer · 3 companies · 1 sharedShelly D. GuyerUday N. Kumar · 3 companies · 1 sharedUday N. KumarCasper E. De Clercq · 2 companies · 1 sharedCasper E. De Cler…Joshua L. Green · 2 companies · 1 sharedJoshua L. GreenUday Kumar · 2 companies · 1 sharedUday KumarCasper L. De Clercq · 1 companies · 1 sharedCasper L. De Cler…Chris E. Grant · 1 companies · 1 sharedChris E. GrantMichael Goldberg · 11 companies · 2 sharedMichael GoldbergWilliam Starling · 4 companies · 2 sharedWilliam StarlingMichael D. Goldberg · 3 companies · 2 sharedMichael D. Goldbe…William F. Willis · 2 companies · 2 sharedWilliam F. WillisBill Willis · 3 companies · 1 sharedBill WillisWilliam N. Starling, Jr. · 3 companies · 1 sharedWilliam N. Starli…Glen W. McLaughlin · 2 companies · 1 sharedGlen W. McLaughlinTimothy A. Marcotte · 2 companies · 1 sharedTimothy A. Marcot…Anshumali D. Roy · 1 companies · 1 sharedAnshumali D. RoyANSHUMALI ROY · 1 companies · 1 sharedANSHUMALI ROYCLARK BROOKS · 1 companies · 1 sharedCLARK BROOKSCLARK F BROOKS · 1 companies · 1 sharedCLARK F BROOKSGLEN MCLAUGHLIN · 1 companies · 1 sharedGLEN MCLAUGHLINKirk Gerner · 4 companies · 2 sharedKirk GerneriRhythm Technologies, Inc. · $118.6M raisediRhythm Technologies,…Yor Labs, Inc. · $37.7M raisedYor Labs, Inc.Rare Air Health, Inc. · $4.7M raisedRare Air Health, Inc.William WillisWW
William Willis Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Michael Goldberg211
Kirk Gerner24
William Starling24
Michael D. Goldberg23
William F. Willis22
William N. Starling15
Uday N. Kumar13
Shelly D. Guyer13
Bill Willis13
William N. Starling, Jr.13
Joshua L. Green12
Glen W. McLaughlin12
Casper E. De Clercq12
Timothy A. Marcotte12
Uday Kumar12
Sam E. Brasch11
R. Hardwin R. Mead11
Vijay N. Lathi11
Judith N. Lenane11
Judith K. Lenane11

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.