VMI Company
- Source for professional video solutions. Includes services, used equipment, and contact information.
- http://www.vmico.com

Precision Calibration Laboratories
- Repair and calibrate test equipment form over 900 different manufacturers. Includes information about electronic, electrical and physical test equipment.
- http://www.pcl1.com/

Harris-Hanson
- Represents electronics manufacturers' in Missouri, Iowa, Nebraska and Southern Illinois. Specializes in RF and microwave components, power management, and interconnection technologies.
- http://www.harris-hanson.com/

Gateway Electronics
- Offering a wide selection of electronic components through our retail stores. We have in stock: ham radio kits, computer parts, gadgets, surplus electronics, electronic books, semiconductors, electronic parts, audio components, transformers, and power sup
- http://www.gatewayelex.com/