| | Kakatiya Overseas Supplier of high quality quartz in lump size. | |
| | ROMRSEAL ALMIRA Providing - distributing : Spare parts for Conveyors, Crushers, Screen | |
| | Lap-Tech Inc. Manufacturer of Custom designed resonators for filters and Oscillators. AT, SC & IT cuts in a wide range of packages including all glass encapsulation Specialist in miniature OCXO resonators. Lapping and polishing services. QCM''s | |
| | Behm Quartz Industries Inc Quartz lapping & polishing services | |
| | Bliley Electric Co Quartz frequency control components, quartz crystals & crystal oscillators | |
| | Cinox Corp Quartz crystals | |
| | Crystek Corp Electronic components & quartz crystal oscillators | |
| | CTS Corp Quartz crystals, crystal oscillators, filters & electronic components | |
| | Fiber Materials Inc High purity quartz yarn | |
| | F-W-S Solid Surface Specialist Solid surface, quartz & natural granite countertops | |
| | General Electric Co Quartz & ceramic products | |
| | General Electric Co Quartz tubing & crucibles | |
| | General Electric Co Quartz & halogen lamps; bulb coatings | |
| | General Electric Lighting Fluorescent, high intensity discharge, quartz, incandescent, miniature, miniature sealed beam, sub miniature, photo & holiday lamps | |
| | GEN-TECH Crystals/Electronics Quartz crystals & oscillators | |
