People · Operator

Jeff Duncan

Named in public records as an officer, director or promoter · active 2025–2025 · Biotechnology

1
Companies
1
Filings
$47.1M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Reprise Biomedical, Inc.BiotechnologySeries B$47.1M$29.7M2025
Operator network

Jeff Duncan 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.

Erwin Kelen · 4 companies · 1 sharedErwin KelenJeff Ross · 4 companies · 1 sharedJeff RossRonald Eibensteiner · 3 companies · 1 sharedRonald Eibenstein…Tina Walters · 2 companies · 1 sharedTina WaltersAlan Woldt · 1 companies · 1 sharedAlan WoldtCARRIE POWERS · 1 companies · 1 sharedCARRIE POWERSGreg Smock · 1 companies · 1 sharedGreg SmockHeather Kotila · 1 companies · 1 sharedHeather KotilaHOWARD ROOT · 1 companies · 1 sharedHOWARD ROOTJake Isenburg · 1 companies · 1 sharedJake IsenburgJerrod Krueger · 1 companies · 1 sharedJerrod KruegerPHILLIP NALBONE · 1 companies · 1 sharedPHILLIP NALBONEPHIL NALBONE · 1 companies · 1 sharedPHIL NALBONESteve Jagodzinski · 1 companies · 1 sharedSteve JagodzinskiTom Kouchoukos · 1 companies · 1 sharedTom KouchoukosReprise Biomedical, Inc. · $47.1M raisedReprise Biomedical, I…Jeff DuncanJD
Jeff Duncan Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Jeff Ross14
Erwin Kelen14
Ronald Eibensteiner13
Tina Walters12
CARRIE POWERS11
PHIL NALBONE11
HOWARD ROOT11
Jake Isenburg11
Tom Kouchoukos11
Alan Woldt11
Jerrod Krueger11
Steve Jagodzinski11
Heather Kotila11
Greg Smock11
PHILLIP NALBONE11

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.