Anritsu: Rentals, Leasing, and Sales –RF/Microwave, Optical and BERT Instruments : (DC-110GHz) Network Analyzers, Spectrum Analyzers, Synthesizers, Signal Generators, Optical Instrumentation, Power Meters, and Radio Communications Test Instrument. 
Junkosha USA: High-Performance Coaxial Cables to 120GHz: Expanded PTFE (ePTFE) Dielectric, Phase/Amplitude Stable vs. Temp/Flexure, 9-14 Days Leadtime at 35% Savings, Ideal for Test & Measurement and Interconnect, Custom Designs Welcome.
Reactel: RF and Microwave Filters covering 5MHz to 50 GHz. Discrete-Lumped Element. Cavity. Ceramic. Combline and Interdigital, Tubular. Suspended Substrate, Waveguide. Integrated assemblies: Switch Filter Banks, Diplexers, Triplexers etc…
JFW Industries:  Attenuation, Filter and RF Switching Automated Test Systems and  Components – 50 ohm/75 ohm – Programmable, Manual and Fixed Attenuators, Terminations and Mismatches, Power Dividers, Couplers, DC Blocks, RF Switches, RF Detectors, Adapters, Test Systems: Integrated Attenuator and Matrix Switch Test Systems etc… Made in USA ISO 9001:2015 RoHS
Ciao Wireless: Microwave GaAs Amplifiers –  30 kHz to 50 GHz, Low Noise and Medium Power, Broadband and Limiting amplifiers. Radial Power Combiners/Dividers for high power solid state transmitter and amplifier applications.
HV Technologies: Prominent Supplier of EMC Test Equipment. Surge and EFT Generators, ESD Guns, Conducted and Radiated Immunity Test Systems, EMI Receivers, RF amps, antennas and positioning equipment, fiber-optic links and converters for anechoic and screen rooms.
CRFS: Ultra-wideband I/Q Recorder – DC-18GHz Freq Range,  up to 1 GHz instantaneous BW. Deepview Forensic Analysis Software – Automatically index and store full-rate I/Q data in real time that is ready for rapid, in-depth post-analysis in order to search for signals of interest.
Netcom: Tunable & LC Filters- Lumped Element & Cavity (HF, VHF, & UHF), LC (Audio to 3.0 GHz), Through-hole & SMT
Elcom Technologies, Inc: Frequency Sources – Including Broadband Direct Analog, Indirect PLL, Narrow Band, Fast Switching, Low Phase Noise Frequency Synthesizers, VME Based Tuners and Phase Locked DRO’s.
Johnstech: Test Sockets –  Design, manufacture and distribute high-density, high-performance Test Sockets and other interconnect products for the electronics industry. 
AST Microwave: Waveguide Switches and Components-Electronic and manual waveguide switches. Passive microwave waveguide components; straights, bends, couplers, terminations, etc.  
CPI: Instrumentation Amplifiers –  (1GHz to 95GHz). TWTA’s Octave and multi-octave bandwidths, 20 Watts to 8KW Watts, CW and Pulsed.
SAF No America: RF / uWave / mmWave Battery Powered Handheld Test Instruments: Spectrum Analyzers (0.3-40GHz, V-band 56-67GHz, & E-band 70-87GHz) and Signal Generators (6-40GHz)
  Select Fabricators: RF EMI Shielded Fabric Enclosures. Tabletop and Full room designs. Fabric Tents for EMI and semiconductor test. RF pouches for securing RF and mobile devices. Aerospace covers for Satcom static protection.