American Microwave American Microwave : Solid State Switches and Attenuators; DLVA’s; Integrated Microwave Assemblies (IMA’s)
Anritus Vector Network Analyzers; Power Meters; Spectrum Analyzers; Hand-held RF Test Equipment; Bit Error Rate Testers (BERTS); Optical Test Equipment; Signal Generators; Wireless Test Solutions (cellular, Bluetooth, WiMax, 802.X); Precision Microwave Components.
Astronics Radio and Avionics Test Sets; Automated Test Equipment.
Atlanta Micro High Performance RF/Microwave solutions offering reduced size, weight and power. Products include filters, amplifiers, attenuators, switches, splitters/couplers, switched filter banks and tuners.
Form Factor Probe Stations for Substrates, Photonics, Circuit Boards and Wafers (up to 300mm)  Probes: Coaxial, Lightwave, Needle-DC to 200GHz; MW Wafer Probe Stations
Microwave / Fiber Optic Delay Line Solutions.
Exodus Advanced Communications Medium and High Power Solid State Amplifiers (1MHZ-50GHz); Broadband, CW, Pulsed and Linear Applications; LNA's; Block Up Converters.
Gigatronics Real-time synthesizers, Real Time Threat Emulation Systems, Integrated Microwave Assemblies, Radar and EW Test Solutions
JFW Industries Fixed and Programmable attenuators; Terminations and Loads; Power Splitters and Dividers; RF Matrices and Custom Modules; RF Switches.
Junkosha Junkosha: High quality, phase stable RF/Microwave cable assemblies for test and measurement and OEM applications. Flexible RF cables as a replacement for semi-rigid cables.
Luff Research Luff Research: High Performance, High Reliability State-of-the-art RF/Microwave Frequency Synthesizers and Phase-Locked Oscillators
Microchip Precision frequency and timing references for Space, Defense and Avionics
MOOG Protokraft designs and manufactures high-speed optoelectronic components and subsystems for use in harsh environment networking equipment applications. The company provides optoelectronic components and subsystems for short and intermediate reach (1 meter to 20 kilometer) harsh environment optical networks, including optical network switches, optical enterprise and storage area networks (SAN' s) and tactical optical access networks.  These active optical subsystems integrate the functions of optical transceivers into the natural structure of a passive optical connector
Mu-Del Electronics Mu-Del: State-of-the-art RF and Microwave products for Intelligence Collection, Detection and Analysis, as well as Satellite Communications and Radar Signal Processing. Products include Multicouplers, Frequency Converters, RF Switch Distribution Systems, and Antenna Systems. Frequency range of DC-40GHz.
Noise eXtended Technologies has the goal of serving the test and Phase noise measurement market, in general, and theembedded systems (OEM) market segment, in particular, by providing high performance instrumentation products at affordable prices.
Lorch High Performance RF and Microwave Filters; Cavity, Ceramic, Discrete, Waveguide and Tunable;Mixers; Phase Shifters.
Lorch EMC/RF Labs
RF Components: Fixed attenuators, Resistors, Thermopad TVA, Diamond RF Resisitives. RF cables assemblies for test, space, and military applications
Lorch Smiths Interconnect integrates the highest performance contact technologies into a broad range of electrical connectors for signal, power, high speed, fiber optic, filter and RF applications that provide high reliability solutions for demanding applications.
VTI Instruments Inc COTS Solutions for Custom Microwave Requirements:  High-density microwave interfaces  (DC-40GHz) based on LXI Class A/Ethernet; standard, OEM and turnkey design solutions.