Furuno www.furunogps.com
Leadtek www.leadtek.com
RF MicroDevices www.rfmd.com
Fortuna Electronics Corp.  STAR-II GPS
Axess Technology, EB-X305 OEM GPS
Circocomm Technology Corp, CT-5501
Position Co. Ltd, GSU-36 
NovAtel www.novatel OEM4-G2
San Jose Navigation, www.sanav.com
Cirocomm Technology Corp www.cirocomm.com.tw

GPS Clock:
Tekelec Systemes, Epsilon Board OEMII

Supplier:
Navtech GPS Supply, www.navtechgps.com