People · Operator

William Johnstone

Named in public records as an officer, director or promoter · active 2020–2025 · Other, Energy / Climate

2
Companies
4
Filings
$31.1M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Gratomic Inc.OtherSeries B$29.0M$368.9M2021
Appia Energy Corp.Energy / ClimatePre-Seed$2.1M$1.3M2020
Operator network

William Johnstone 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.

Arno Brand · 2 companies · 1 sharedArno BrandArmando Farhate · 1 companies · 1 sharedArmando FarhateBruno Baillavoine · 1 companies · 1 sharedBruno BaillavoineCliff Bream · 1 companies · 1 sharedCliff BreamDaniel Baard · 1 companies · 1 sharedDaniel BaardKarl Trudeau · 1 companies · 1 sharedKarl TrudeauRoger Roden · 1 companies · 1 sharedRoger RodenBrian Robertson · 6 companies · 1 sharedBrian RobertsonWILLIAM R. JOHNSTONE · 5 companies · 1 sharedWILLIAM R. JOHNST…Brian Crawford · 3 companies · 1 sharedBrian CrawfordFRANK VAN DE WATER · 3 companies · 1 sharedFRANK VAN DE WATERTHOMAS SKIMMING · 3 companies · 1 sharedTHOMAS SKIMMINGANASTASIOS DRIVAS · 2 companies · 1 sharedANASTASIOS DRIVASJames Sykes · 2 companies · 1 sharedJames SykesBrain Robertson · 1 companies · 1 sharedBrain RobertsonDouglas H Underhill · 1 companies · 1 sharedDouglas H Underhi…Douglas Underhill · 1 companies · 1 sharedDouglas UnderhillNick Bontis · 1 companies · 1 sharedNick BontisNick R. Bontis · 1 companies · 1 sharedNick R. BontisPeter Cashin · 1 companies · 1 sharedPeter CashinStephen Burega · 1 companies · 1 sharedStephen BuregaTom Drivas · 1 companies · 1 sharedTom DrivasGratomic Inc. · $29.0M raisedGratomic Inc.Appia Energy Corp. · $2.1M raisedAppia Energy Corp.William JohnstoneWJ
William Johnstone Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Brian Robertson16
WILLIAM R. JOHNSTONE15
Brian Crawford13
FRANK VAN DE WATER13
THOMAS SKIMMING13
Arno Brand12
James Sykes12
ANASTASIOS DRIVAS12
Brain Robertson11
Roger Roden11
Armando Farhate11
Bruno Baillavoine11
Cliff Bream11
Karl Trudeau11
Daniel Baard11
Peter Cashin11
Douglas Underhill11
Stephen Burega11
Nick Bontis11
Douglas H Underhill11

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.