Bomar Crystal Company Manufacturer of quartz crystals, clock oscillators, VCXOs, TCXOs, VCTCXOs, filters and resonators. http://www.bomarcrystal.com/

Rakon Limited Manufacturers of quality quartz crystal and high performance TCXO's, VCTCXO's and crystal oscillators. http://www.rakon.com/

Klove Electronics bv Supplier and manufacturer of quartz crystals and clock crystal oscillators. http://www.klove.nl/

Abracon Manufacture of crystals and inductive products http://www.abracon.com/

Baknor Manufacturer of frequency control products. http://www.baknor.com/

Bliley Electric Co. Vendor of frequency control products. http://www.bliley.com/

Colorado Crystal Corporation Manufacturer of a precision line of AT, SC, IT, AC, and other singly and doubly rotated crystals. http://www.coloradocrystal.com/

Cal Crystal Lab, Inc. Design and produce oscillator modules and crystals. Standard TTL and HCMOS products including VCXOs. http://www.calcrystal.com/

ECS, Inc. International Manufacturer of piezo electric based quartz, ceramic, and lithium niobate products. http://www.ecsxtal.com/

ValpeyFisher Crystals, clocks, oscillators, electronic quartz crystals, oscillators and filters, crystal-based timing devices, Matec, electronics, semiconductors. http://www.valpeyfisher.com/

Connor-Winfield Producer of crystal oscillators, VCXO, TCXO, VCO, ECL, TTL, HMOS, ECO, Stratum 3, custom timing solutions http://www.conwin.com/

International Crystal Manufacturing Manufacturing quartz crystals, oscillators, precision crystals and filters. http://www.icmfg.com/

M-tron Industries, Inc. Supplier of frequency control devices, including quartz crystals, clock oscillators, and voltage controlled and temperature compensated crystal oscillators. http://www.mtron.com/

Vanlong Technical Co., Ltd Supplier of quartz crystals, resonators, oscillators, filters, SAW and other electronic devices. http://www.vanlong.com/

Saronix Supplier offering a broad range of frequency control products in metal, plastic and ceramic packages. http://www.saronix.com/

Statek Corporation Manufacturer of quartz crystals and crystal oscillators. Worldwide distribution of a full range of ultra-miniature frequency control products. http://www.statek.com/

Tele Quarz Group Manufacturer of quartz crystals, quartz crystal oscillators and quartz crystal filters. http://www.telequarz.de/

Hy-Q International (Australia) Pty. Ltd. Supplier of frequency control components including quartz crystals, crystal oscillators, crystal and ceramic filters and resonators. http://www.hy-q.com.au

Total Frequency Control Ltd Manufacturer of frequency control products including quartz crystals, crystal oscillators and filters. Also inductors, chokes and wound coils. http://www.tfc.co.uk

MH Electronics Manufacturer of AT cut quartz crystals and crystal devices for a variety of applications. http://www.mhelectronics.com