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, Nec1,283
366900Communications equipment, nec186
36690000Communications equipment, nec186
366901Emergency alarms445
36690100Emergency alarms176
36690101Burglar alarm apparatus, electric67
36690102Fire alarm apparatus, electric56
36690103Fire detection systems, electric32
36690104Metal detectors55
36690105Sirens, electric: vehicle, marine, industrial, and air raid24
36690106Smoke detectors35
366902Transportation signaling devices355
36690200Transportation signaling devices110
36690201Highway signals, electric10
36690202Marine horns, electric5
36690203Pedestrian traffic control equipment60
36690204Railroad signaling devices, electric28
36690205Signaling apparatus, electric36
36690206Traffic signals, electric106
366999Communications equipment, nec, nec297
36699901Intercommunication systems, electric205
36699902Visual communication systems92