People · Operator

John Brian Semachko

Named in public records as an officer, director or promoter · active 2007–2007 · Other

1
Companies
4
Filings
$20.8M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Sierra Gold CorpOtherPre-Seed$20.8M$16.5M2007
Operator network

John Brian Semachko 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.

Douglas Brian Evans · 1 companies · 1 sharedDouglas Brian Eva…Douglas Evans Evans · 1 companies · 1 sharedDouglas Evans Eva…James Spencer Stewart · 1 companies · 1 sharedJames Spencer Ste…James Spence Stewart · 1 companies · 1 sharedJames Spence Stew…John Bai Kamara · 1 companies · 1 sharedJohn Bai KamaraJohn Evans Semachko · 1 companies · 1 sharedJohn Evans Semach…John Spencer Seamchko · 1 companies · 1 sharedJohn Spencer Seam…John Spencer Semachko · 1 companies · 1 sharedJohn Spencer Sema…John Spencer Semachko Jr. · 1 companies · 1 sharedJohn Spencer Sema…John Spence Semachko · 1 companies · 1 sharedJohn Spence Semac…Sierra Gold Corp · $20.8M raisedSierra Gold CorpJohn Brian SemachkoJS
John Brian Semachko Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
John Spencer Semachko Jr.11
James Spencer Stewart11
Douglas Brian Evans11
John Spencer Seamchko11
John Spencer Semachko11
Douglas Evans Evans11
John Evans Semachko11
John Spence Semachko11
John Bai Kamara11
James Spence Stewart11

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.