People · Operator

Derek Flanzraich

Named in public records as an officer, director or promoter · active 2015–2022 · Other, Sports & Fitness

3
Companies
5
Filings
$30.5M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Ness Well, Inc.OtherSeries A$14.9M$142.5M2022
305 Fitness, Inc.Sports & FitnessSeries A$12.5M$118.8M2019
Greatist, Inc.OtherSeed$3.1M$46.5M2015
Operator network

Derek Flanzraich 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.

Sadie Kurzban · 2 companies · 1 sharedSadie KurzbanSarah Foley · 2 companies · 1 sharedSarah FoleyBenjamin Kurzban · 1 companies · 1 sharedBenjamin KurzbanIra Kurzban · 1 companies · 1 sharedIra KurzbanSamuel Karshenboym · 1 companies · 1 sharedSamuel KarshenboymNess Well, Inc. · $14.9M raisedNess Well, Inc.305 Fitness, Inc. · $12.5M raised305 Fitness, Inc.Greatist, Inc. · $3.1M raisedGreatist, Inc.Derek FlanzraichDF
Derek Flanzraich Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Sadie Kurzban12
Sarah Foley12
Benjamin Kurzban11
Ira Kurzban11
Samuel Karshenboym11

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.