People · Operator

Grant Castilow

Named in public records as an officer, director or promoter · active 2010–2010 · Energy Conservation

1
Companies
2
Filings
$1.1M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
DwellGreen, LLCEnergy ConservationPre-Seed$1.1M$30.5M2010
Operator network

Grant Castilow 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.

John Ferrari · 12 companies · 1 sharedJohn FerrariSteve Ellis · 8 companies · 1 sharedSteve EllisDwellGreen, LLC · $1.1M raisedDwellGreen, LLCGrant CastilowGC
Grant Castilow Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
John Ferrari112
Steve Ellis18

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.