Motorola Solutions is a dominant radio manufacturer in the government/first responder space, as well as major infrastructure providers. Yes, that means cops, but it also means firefighters, ambulances, trains, buses, airports, and any fleet of mobile service for mission critical stuff like electric utilities, telecom, and some aviation uses. Back in the day of trunk radio, it used to be common for taxis, too.

Motorola sold its consumer mobile businesses (cell phones) in 2011 in a spinoff as "Motorola Mobility," around the time it was shutting down and selling off pieces of its space/satellite businesses, but kept most of its other businesses. Today's Motorola Solutions is the legal successor to the Motorola that invented the cell phone.