Cincinnati Technologies Design and develop wireless and RF systems. Includes available skills and an overview of services. http://www.cincinnatitechnologies.com/

Cross Country Radio Services Ltd Provide specialist radio engineering services to European mobile and cellular radio operators. Includes a downloadable calculator for cellular network design. http://www.crosscountryradio.co.uk/

CTA Communications Inc. Offer engineering consulting services for 2-way radio, data communication, and microwave systems. Includes current projects and technical papers . http://www.ctacommunications.com/

Red Mountain Radio LLC Offers innovative system and circuit research and design services and products. Applications include (but are not limited to) wireless, radar, broadcast and fiber optic. http://www.redmountainradio.com/

Trott Communications Group, Inc. Radio network planning and site acquisition services. Includes public saftey network planning http://www.trottgroup.com