People · Operator

John Barton Mendlein

Named in public records as an officer, director or promoter · active 2015–2016 · Biotechnology

1
Companies
6
Filings
$92.8M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Axcella Health Inc.BiotechnologySeries C$92.8M$105.5M2015
Operator network

John Barton Mendlein 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.

Peter Barton Hutt · 14 companies · 1 sharedPeter Barton HuttNoubar Afeyan · 9 companies · 1 sharedNoubar AfeyanRobert Crane · 7 companies · 1 sharedRobert CraneCharles Cooney · 4 companies · 1 sharedCharles CooneyRobert Connelly · 4 companies · 1 sharedRobert ConnellyDavid Berry · 3 companies · 1 sharedDavid BerryCatherine A. Sohn · 2 companies · 1 sharedCatherine A. SohnDavid R. Epstein · 2 companies · 1 sharedDavid R. EpsteinGregory Behar · 2 companies · 1 sharedGregory BeharStephen Hoge · 2 companies · 1 sharedStephen HogeWilliam D. Baird · 2 companies · 1 sharedWilliam D. BairdWilliam Hinshaw · 2 companies · 1 sharedWilliam HinshawChris Barton Viehbacher · 1 companies · 1 sharedChris Barton Vieh…Cristina M. Rondinone · 1 companies · 1 sharedCristina M. Rondi…Garry Barton Menzel · 1 companies · 1 sharedGarry Barton Menz…Gary Barton Pisano · 1 companies · 1 sharedGary Barton PisanoGary D. Pisano · 1 companies · 1 sharedGary D. PisanoGlenn Barton Nedwin · 1 companies · 1 sharedGlenn Barton Nedw…Jeff Barton Moore · 1 companies · 1 sharedJeff Barton MooreMargaret Koziel · 1 companies · 1 sharedMargaret KozielMartin D. Hendrix · 1 companies · 1 sharedMartin D. HendrixMichael D. Rosenblatt · 1 companies · 1 sharedMichael D. Rosenb…Axcella Health Inc. · $92.8M raisedAxcella Health Inc.John Barton MendleinJM
John Barton Mendlein Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Peter Barton Hutt114
Noubar Afeyan19
Robert Crane17
Robert Connelly14
Charles Cooney14
David Berry13
Gregory Behar12
Catherine A. Sohn12
William Hinshaw12
David R. Epstein12
William D. Baird12
Stephen Hoge12
Paul Fehlner11
Michael D. Rosenblatt11
Jeff Barton Moore11
Glenn Barton Nedwin11
Gary Barton Pisano11
Garry Barton Menzel11
Chris Barton Viehbacher11
Paul D. Sekhri11

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.