People · Operator

John Sheffield Jaffray

Named in public records as an officer, director or promoter · Environmental Services

1
Companies
1
Filings
$8.0M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
JJR Power Inc.Environmental ServicesSeries A$8.0M$18.4M
Operator network

John Sheffield Jaffray 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.

Cornelius V. Boersma IV · 1 companies · 1 sharedCornelius V. Boer…Dennis V. Severson · 1 companies · 1 sharedDennis V. SeversonMike V. Woodley · 1 companies · 1 sharedMike V. WoodleyJJR Power Inc. · $8.0M raisedJJR Power Inc.John Sheffield JaffrayJJ
John Sheffield Jaffray Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Dennis V. Severson11
Cornelius V. Boersma IV11
Mike V. Woodley11

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.