People · Operator

Walter Kielar

Named in public records as an officer, director or promoter · active 2013–2013 · Other Health Care

1
Companies
1
Filings
$476K
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Fresenius Medical Care Burlington, LLC—Other Health CarePre-Seed$476K$14.7M2013
Operator network

Walter Kielar 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.

Joseph Ruma · 47 companies · 1 sharedJoseph RumaKen Nelson · 5 companies · 1 sharedKen NelsonMaria Burke · 3 companies · 1 sharedMaria BurkeDavid Bertha · 2 companies · 1 sharedDavid BerthaJoseph Pitone · 2 companies · 1 sharedJoseph PitoneFresenius Medical Care Burlington, LLC · $0.5M raisedFresenius Medical Car…Walter KielarWK
Walter Kielar Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Joseph Ruma147
Ken Nelson15
Maria Burke13
David Bertha12
Joseph Pitone12

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.