SIC Industry Description

Industry: 3669—Communications Equipment, Not Elsewhere Classified
Establishments primarily engaged in manufacturing communications and related equipment, not elsewhere classified. Important products of this industry are intercommunication equipment, traffic signaling equipment, and fire and burglar alarm apparatus.

Burglar alarm apparatus, electricRailroad signaling devices, electric
Fire alarm apparatus, electricSignaling apparatus, electric
Fire detection systems, electricSignals: railway, highway, and traffic—electric
Highway signals, electricSirens, electric: vehicle, marine, industrial, and air raid
Intercommunications equipment, electronicSmoke detectors
Marine horns, electricTraffic signals, electric
Pedestrian traffic control equipment
Codes Titles Total Marketable US Businesses
3669Communications Equipment, Nec1,248
366900Communications equipment, nec181
36690000Communications equipment, nec181
366901Emergency alarms469
36690100Emergency alarms196
36690101Burglar alarm apparatus, electric71
36690102Fire alarm apparatus, electric58
36690103Fire detection systems, electric31
36690104Metal detectors53
36690105Sirens, electric: vehicle, marine, industrial, and air raid25
36690106Smoke detectors35
366902Transportation signaling devices300
36690200Transportation signaling devices66
36690201Highway signals, electric6
36690202Marine horns, electric4
36690203Pedestrian traffic control equipment61
36690204Railroad signaling devices, electric34
36690205Signaling apparatus, electric32
36690206Traffic signals, electric97
366999Communications equipment, nec, nec298
36699901Intercommunication systems, electric210
36699902Visual communication systems88