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Pye-Barker Fire & Safety acquires Communication Systems International (CSI)

April 7, 2026SSN Staff

ATLANTA—Pye-Barker Fire & Safety has announced the acquisition of Communication Systems International dba CSI, enabling Pye-Barker to bring full-service code compliance and peace of mind to more customers throughout Texas. Established in San Antonio, Texas, in 1996, CSI is a fully integrated and diversified security and communications company. CSI - led by co-owners Carl Lyssy, Roger Lyssy and Darryl Mosses - designs, installs, tests and maintains fire alarm and security systems. It...

Bart Proctor, Carl Lyssy, Communication Systems International dba CSI, Darryl Mosses, Law Offices of Marc P. Katz, Nelson Mullins Riley & Scarborough, Pye-Barker Fire & Safety, Roger Lyssy, Sell Alarm Company, Texas, Tim Shiner