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, Nec1,303
366900Communications equipment, nec178
36690000Communications equipment, nec178
366901Emergency alarms494
36690100Emergency alarms200
36690101Burglar alarm apparatus, electric75
36690102Fire alarm apparatus, electric61
36690103Fire detection systems, electric35
36690104Metal detectors57
36690105Sirens, electric: vehicle, marine, industrial, and air raid28
36690106Smoke detectors38
366902Transportation signaling devices322
36690200Transportation signaling devices70
36690201Highway signals, electric8
36690202Marine horns, electric4
36690203Pedestrian traffic control equipment66
36690204Railroad signaling devices, electric35
36690205Signaling apparatus, electric36
36690206Traffic signals, electric103
366999Communications equipment, nec, nec309
36699901Intercommunication systems, electric216
36699902Visual communication systems93