Agilent Technologies  
    http://www.agilent.com/

Alpha Industries
    http://www.alphaind.com/

AMCOM Communications
    http://www.amcomusa.com/

AMITRON
    http://www.amitron.com/

Amplifier Research
    http://www.ar-amps.com/

Anaren Microwave
    http://www.anaren.com/

Andrew
    http://www.andrew.com/

Applied Engineering Products
    http://www.aepconnectors.com/

ARRA
    http://www.arra.com/

Atrantic Microwave
   http://www.atlanticmicrowave.com/

Avtech Electrosystems
    http://www.avtechpulse.com/

Celeritek
    http://www.celeritek.com/

Coilcraft
    http://www.coilcraft.com/

Compel Electronics
    http://www.compelna.com/

Cougar Components
    http://www.cougarcorp.com/

Delta Microwave
    http://www.deltamicrowave.com/

Dow-Key Microwave
    http://www.dowkey.com/

EXFO Electro-optical Engineeering
    http://www.exfo.com/

Florida RF Labs
    http://www.rflabs.com/

G.T. Microwave
    http://www.gtmicrowave.com/

Hittite Microwave
    http://www.hittite.com/

HUBER SUHNER
    http://www.hubersuhner.com/

Inmet
    http://www.inmetcorp.com/

JFW industries
    http://www.jfwindustries.com/

Johanson Technology
    http://www.johansontechnology.com/

K&L Microwave
    http://www.klmicrowave.com/

Lorch Microwave
    http://www.lorch.com/

Krytar
    http://www.krytar.com/

MA-COM
    http://www.macom.com/

Maury
    http://www.maurymw.com/

MICA Microwave
    http://www.mica-mw.com/

Microwave Device Technology
   http://www.mdtcorp.com/

Merrimac
    http://www.merrimacind.com/

Microwave Instrumentation Technologies
    http://www.mi-technologies.com/

MECA Electronics
    http://www.e-meca.com/

MegaPhase
    http://www.megaphase.com/

Micro Metrics
    http://www.micrometrics.com/

Microtech
    http://www.microtech-inc.com/

Microwave Filter Co
    http://www.microwavefilter.com/

Microwave Power Inc
    http://www.microwavepwr.com/

Microlab/FXR
    http://microlab.fxr.com/

Midwest Microwave
    http://www.midwest-microwave.com/

Millitech
    http://www.millitech.com/

Mini-Circuits
    http://www.minicircuits.com/

MPI
    http://www.milpi.com/

MITEQ
    http://www.miteq.com/

Narda
    http://www.nardamicrowave.com/

OMEGA S.A.
    http://www.omega-tech.com/

Picosecond Pulse labs
    http://www.picosecond.com/

Pulsar microwave
    http://www.pulsarmicrowave.com/

Poly Circuits  
    http://www.mwav.com/

RF Micro Devices
    http://www.rfmd.com/

Quasar Microwave technology Ltd
    http://www.qmtl.com/

Richardson Electronics
    http://www.rfpowernet.com/

Sage Laboratories
    http://www.sagelabs.com/

Salisbury Engineering
    http://www.salisbury-engineering.com/

Signal Technology
    http://www.sigtech.com/

Spinnaker Microwave
    http://www.spinnakermicrowave.com/

Spinner
    http://www.spinner.de/index_eng.htm

SSPA Microwave
    http://www.sspamicrowave.com/

Storm Products
    http://www.stormproducts.com/

SV Microwave
    http://www.svmicrowave.com/

Synergy microwave
    http://www.synergymwave.com/

Tensolite   
    http://www.tensolite.com/

UTE Microwave
    http://www.utemicrowave.com/

Weinschel Engineering
    http://www.weinschel.com/

Werlatone
    http://www.werlatone.com/

W.L. Gore & Associates
    http://www.goreelectronics.com/