People · Operator

Peter L. Holstein

Named in public records as an officer, director or promoter · active 2017–2025 · Other

3
Companies
3
Filings
$44.7M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Middleton O2Cool Investors LLCOtherSeries B$27.4M$30.8M2020
Middleton Msg Investors LlcOtherSeries A$12.5M$189.4M2017
Middleton Bevan Holdings, LLCOtherSeries A$4.8M$14.7M2025
Operator network

Peter L. Holstein 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.

MATTHEW JAFFEE · 1 companies · 1 sharedMATTHEW JAFFEEMatthew P Jaffee · 1 companies · 1 sharedMatthew P JaffeeMITCHEL GREENBERG · 1 companies · 1 sharedMITCHEL GREENBERGPETER HOLSTEIN · 1 companies · 1 sharedPETER HOLSTEINMitchel A. Greenberg · 6 companies · 2 sharedMitchel A. Greenb…N/A MIDDLETON MANAGEMENT COMPANY · 2 companies · 2 sharedN/A MIDDLETON MAN…Keith W. Jaffee · 2 companies · 2 sharedKeith W. JaffeeDouglas L. Gessner · 1 companies · 1 sharedDouglas L. GessnerMatthew Phillip Jaffee · 1 companies · 1 sharedMatthew Phillip J…Middleton O2Cool Investors LLC · $27.4M raisedMiddleton O2Cool Inve…Middleton Msg Investors Llc · $12.5M raisedMiddleton Msg Investo…Middleton Bevan Holdings, LLC · $4.8M raisedMiddleton Bevan Holdi…Peter L. HolsteinPH
Peter L. Holstein Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Mitchel A. Greenberg26
Keith W. Jaffee22
N/A MIDDLETON MANAGEMENT COMPANY22
Matthew P Jaffee11
PETER HOLSTEIN11
MATTHEW JAFFEE11
MITCHEL GREENBERG11
Matthew Phillip Jaffee11
Douglas L. Gessner11

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.