People · Operator

John D. McMahon

Named in public records as an officer, director or promoter · active 2017–2025 · AI / ML, Other Technology, Food & Beverage

3
Companies
3
Filings
$2.7B
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Snowflake Computing, Inc.AI / MLGrowth/Late$2.4B$3.7B2022
Observe, Inc.Other TechnologySeries D+$269.8M$1.1B2025
Door County Brewing Co., LLCFood & BeveragePre-Seed$1.0M$23.1M2017
Operator network

John D. McMahon 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.

Carl Eschenbach · 6 companies · 1 sharedCarl EschenbachMichael Speiser · 6 companies · 1 sharedMichael SpeiserFrank Slootman · 5 companies · 1 sharedFrank SlootmanMark McLaughlin · 5 companies · 1 sharedMark McLaughlinJohn L. Walecka · 4 companies · 1 sharedJohn L. WaleckaMichael P. Scarpelli · 4 companies · 1 sharedMichael P. Scarpe…Robert Muglia · 3 companies · 1 sharedRobert MugliaSridhar Ramaswamy · 3 companies · 1 sharedSridhar RamaswamyVivek Raghunathan · 3 companies · 1 sharedVivek RaghunathanBrian Robins · 2 companies · 1 sharedBrian RobinsJayshree Ullal · 2 companies · 1 sharedJayshree UllalKelly Kramer · 2 companies · 1 sharedKelly KramerBarbara T. Walkowski · 1 companies · 1 sharedBarbara T. Walkow…Benoit Dageville · 1 companies · 1 sharedBenoit DagevilleChris T. Degnan · 1 companies · 1 sharedChris T. DegnanChristian Kleinerman · 1 companies · 1 sharedChristian Kleiner…Michael L. Speiser · 9 companies · 2 sharedMichael L. SpeiserJohn McMahon · 7 companies · 2 sharedJohn McMahonJeremy Burton · 2 companies · 2 sharedJeremy BurtonBrian L. Campbell · 1 companies · 1 sharedBrian L. CampbellAl D. Costigan · 1 companies · 1 sharedAl D. CostiganAngela D. McMahon · 1 companies · 1 sharedAngela D. McMahonSnowflake Computing, Inc. · $2406.9M raisedSnowflake Computing, …Observe, Inc. · $269.8M raisedObserve, Inc.Door County Brewing Co., LLC · $1.0M raisedDoor County Brewing C…John D. McMahonJM
John D. McMahon Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Michael L. Speiser29
John McMahon27
Jeremy Burton22
Carl Eschenbach16
Michael Speiser16
Mark McLaughlin15
Frank Slootman15
Michael P. Scarpelli14
John L. Walecka14
Sridhar Ramaswamy13
Vivek Raghunathan13
Robert Muglia13
Kelly Kramer12
Jayshree Ullal12
Brian Robins12
Teresa Briggs11
Jayshree V. Ullal11
Benoit Dageville11
Mark Garrett11
Christian Kleinerman11

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.