General Microwave Corporation
For more than 40 years, Herley has been supplying solid, innovative, and sophisticated RF, microwave and millimeter wave components and subsystems to the defense and aerospace industries
http://www.GeneralMicrowave.Com

Microwave Devices Inc.
Leading Manufacturer of RF & Microwave Passive Components, DC-60GHz; .5 to 80000 Watts
http://www.mwdevices.com

TMD Technologies Limited
Microwave Amplifiers, Transmitters, Tubes & Power Supplies for Radar, EW, Communications & Laboratory
http://www.tmdtechnologies.co.uk/

Diamond Antenna & Microwave Corporation
Manufacture of microwave rotary joints, electrical rotary transfer devices (roll rings) and waveguide switches.
http://www.diamondantenna.com

Corfin Industries llc
Corfin Industries LLC., is an ISO 9002 certified component preparation service which processes product for companies which seek expertise in outsourced services or cannot justify the capital investment.
http://www.corfin.net/

Woken Technology Inc
Manufactures microwave/rf coaxial connectors, cables, cable assemblies, microwave/rf antennas and rf accessories and distributor for worldwide manufacturers of rf/microwave and wireless telecommunications equipment. From Taiwan.
http://www.woken.com.tw/

ABM Sensor Technology Inc.
ABM Sensor Technology designs and manufactures Ultrasonic and Microwave level devices for industrial applications. We produce, and provide services for ultrasonic transducers, ultrasonic and microwave level devices,and their controllers, pulse radars, point level switches, flowmeters, force sensors, open channel meters etc...
http://www.abmsensor.com

MiRCTECH
The Microwave Circuit Technology Group was established in 2001 by Dr. John Papapolymerou and focuses on research in the area of microwave engineering. More specifically, students study and develop novel microwave structures using techniques such as micromachining, MEMS devices, and EBG structures.
http://www.ece.gatech.edu/research/MIRCTECH/

UCLA Microwave Electronics Lab
Professor Tatsuo Itoh's lab group at the University of California at Los Angeles, carrying out theoretical/numerical projects and experimental investigations in the area of microwave/millimeter-wave active integrated circuits, microwave-optical interactions and electromagnetics.
http://www.mwlab.ee.ucla.edu

TMD Technologies Ltd.
Microwave Amplifiers, Transmitters, Tubes & Power Supplies for Radar, EW, Communications & Laboratory
http://www.tmdtechnologies.co.uk/