People · Operator

Mark Day

Named in public records as an officer, director or promoter · active 2018–2025 · Other, Other Technology, Biotechnology

3
Companies
4
Filings
$16.7M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Circle Cardiovascular Imaging Inc.OtherSeries A$7.8M$117.7M2018
iLumisAR Inc.Other TechnologySeed$5.3M$5.5M2024
biOasis Technologies Inc.BiotechnologySeed$3.6M$74.8M2018
Operator network

Mark Day 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.

NISHITA CUMMINGS · 4 companies · 1 sharedNISHITA CUMMINGSGreg Ogrodnick · 1 companies · 1 sharedGreg OgrodnickHans Knapp · 1 companies · 1 sharedHans KnappKen Stephenson · 1 companies · 1 sharedKen StephensonMatthias Freidrich · 1 companies · 1 sharedMatthias FreidrichMike Little · 1 companies · 1 sharedMike LittleMatthew Miller · 15 companies · 1 sharedMatthew MillerAbinav Sankar · 6 companies · 1 sharedAbinav SankarLia Logio · 1 companies · 1 sharedLia LogioMichael Straightiff · 1 companies · 1 sharedMichael Straighti…Neil Wyant · 1 companies · 1 sharedNeil WyantNancy Stagliano · 5 companies · 1 sharedNancy StaglianoDavid M. Wurzer · 4 companies · 1 sharedDavid M. WurzerDeborah Rathjen · 2 companies · 1 sharedDeborah RathjenDave P. Jenkins · 1 companies · 1 sharedDave P. JenkinsDeborah P. Rathjen · 1 companies · 1 sharedDeborah P. RathjenJohn E. Curran · 1 companies · 1 sharedJohn E. CurranJohn E. Hemeon · 1 companies · 1 sharedJohn E. HemeonMaha Radhakrishnan · 1 companies · 1 sharedMaha RadhakrishnanMario E. Saltarelli · 1 companies · 1 sharedMario E. Saltarel…May P. Orfali · 1 companies · 1 sharedMay P. OrfaliMei Mei P. Tian · 1 companies · 1 sharedMei Mei P. TianCircle Cardiovascular Imaging Inc. · $7.8M raisedCircle Cardiovascular…iLumisAR Inc. · $5.3M raisediLumisAR Inc.biOasis Technologies Inc. · $3.6M raisedbiOasis Technologies …Mark DayMD
Mark Day Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Matthew Miller115
Abinav Sankar16
Nancy Stagliano15
NISHITA CUMMINGS14
David M. Wurzer14
Deborah Rathjen12
Mei Mei P. Tian11
John E. Curran11
Dave P. Jenkins11
Deborah P. Rathjen11
Mario E. Saltarelli11
Maha Radhakrishnan11
Mike Little11
Qiao Wei11
Greg Ogrodnick11
Matthias Freidrich11
Randy Jordan11
Hans Knapp11
Ken Stephenson11
Philipp Barckow11

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.