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who-owns/[slug]

OWNERSHIP FILE

Who owns Proton?

No parent company of Proton is on file. On file: 1 brand of Proton and 1 company owned by Proton. Each one cites its source below.
OPEN THE FULL PROTON FILE
Ownership links come from company announcements, public filings and open registries. Scores are editorial opinion.
EDITORIAL OPINION · HOW WE SCORE ›
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