People · Operator

Mark Johnston

Named in public records as an officer, director or promoter · active 2012–2020 · Software / Tech, Other, Hospitals and Physicians

3
Companies
9
Filings
$190.6M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Turntide Technologies Inc.Software / TechSeries C$171.2M$2.2B2017
6AM City, LLCOtherSeries A$15.3M$56.8M2017
Victory Medical Center Plano, LPHospitals and PhysiciansSeed$4.0M$92.2M2012
Operator network

Mark Johnston 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.

Shvetank Jain · 7 companies · 1 sharedShvetank JainChris Rivest · 5 companies · 1 sharedChris RivestGreg Smithies · 3 companies · 1 sharedGreg SmithiesRichard Linder · 3 companies · 1 sharedRichard LinderSergey Polikarpov · 3 companies · 1 sharedSergey PolikarpovKim Kolt · 2 companies · 1 sharedKim KoltNilesh Patel · 2 companies · 1 sharedNilesh PatelRyan Morris · 2 companies · 1 sharedRyan MorrisGordon Hunter · 1 companies · 1 sharedGordon HunterJohn Bannon · 1 companies · 1 sharedJohn BannonPrith Banerjee · 1 companies · 1 sharedPrith BanerjeeRobert Flohr · 1 companies · 1 sharedRobert FlohrAdam Ostrow · 3 companies · 1 sharedAdam OstrowRyan Johnston · 2 companies · 1 sharedRyan JohnstonChristopher Fink · 1 companies · 1 sharedChristopher FinkDouglas Greenlaw · 1 companies · 1 sharedDouglas GreenlawJeff Ludwig · 1 companies · 1 sharedJeff LudwigMATTHEW SAMOST · 1 companies · 1 sharedMATTHEW SAMOSTRYAN HEAFY · 1 companies · 1 sharedRYAN HEAFYRobert, Jr. N. Helms · 6 companies · 1 sharedRobert, Jr. N. He…Steve Williams · 4 companies · 1 sharedSteve WilliamsKaren Sperduti · 1 companies · 1 sharedKaren SperdutiTurntide Technologies Inc. · $171.2M raisedTurntide Technologies…6AM City, LLC · $15.3M raised6AM City, LLCVictory Medical Center Plano, LP · $4.0M raisedVictory Medical Cente…Mark JohnstonMJ
Mark Johnston Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Shvetank Jain17
Robert, Jr. N. Helms16
Chris Rivest15
Steve Williams14
Greg Smithies13
Richard Linder13
Adam Ostrow13
Sergey Polikarpov13
Ryan Johnston12
Kim Kolt12
Ryan Morris12
Nilesh Patel12
Karen Sperduti11
MATTHEW SAMOST11
RYAN HEAFY11
Christopher Fink11
Jeff Ludwig11
Douglas Greenlaw11
Prith Banerjee11
Gordon Hunter11

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.