Home Fairfield Stamford’s Keter Environmental Services acquires M-PASS Environmental FairfieldLatest NewsMergers & AcquisitionsPremium Content Stamford’s Keter Environmental Services acquires M-PASS Environmental By Phil Hall - December 29, 2021 M-PASS provides waste management and recycling services. This content is for Westfair Online members only. Please Sign in / Join to view this content. Become a member by Registering Here.