Attenuators
- Advanced Control Components Inc. [Rikei Corp.]
- Advanced Semiconductor, Inc. [PTM Corp.]
- Advanced Semiconductor Business, Inc. [PTM Corp.]
- Advanced Technical Materials, Inc. [AMT, Inc.]
- Advanced Technical Materials, Inc. [Hi-Technology Trading, Inc.]
- Aeroflex / Inmet [Seki Technotron Corp.]
- Aeroflex / KDI-Integrated Products [Rikei Corp.]
- Aeroflex / Weinschel [Seki Technotron Corp.]
- Amplical Corp. [CORNES DODWELL LTD.]
- AMT, Inc.
- Anaren Microwave, Inc. [Richardson Electronics K.K.]
- Apollo Microwaves, Ltd. [Hi-Technology Trading, Inc.]
- ARRA, Inc. [Shoshin Corp.]
- AWR Japan K.K.
- Bowei Integrated Circuits Co., Ltd. [Hi-Technology Trading, Inc.]
- Charter Engineering, Inc. [M-RF Co., Ltd.]
- Comcraft Corp.
- Comotech Corp. [PTM Corp.]
- CORNES DODWELL LTD.
- Daico Industries, Inc. [Shoshin Corp.]
- Farad Corp.
- Fusoh Shoji Co., Ltd.
- G.T. Electronics Corp.
- G.T. Microwave, Inc. [Shoshin Corp.]
- Gigatech Co., Ltd. [Netwell Corp.]
- Hi-Technology Trading, Inc.
- Hittite Microwave Corp. [Farad Corp.]
- HNL, Inc. [AET, Inc.]
- HXI, L.L.C. [Hi-Technology Trading, Inc.]
- Innertron Japan Co., Ltd.
- Keycom Corp.
- KJ Comtech Co., Ltd. [Maycom Japan Co., Ltd.]
- L-3 Communications, Narda Microwave-East [Midoriya Electric Co., Ltd.]
- Lieder Development, Inc. [Hi-Technology Trading, Inc.]
- Link Microtek, Ltd. [Midoriya Electric Co., Ltd.]
- Linx Technologies, Inc. [PTM Corp.]
- MAJ Co., Ltd.
- Maycom Japan Co., Ltd.
- Mega Industries, L.L.C. [AET, Inc.]
- Microwave Development Laboratories, Inc. [Hi-Technology Trading, Inc.]
- Midoriya Electric Co., Ltd.
- Millimeter Wave Product, Inc. [Hi-Technology Trading, Inc.]
- Mini-Circuits [Mini-Circuits Yokohama, Ltd.]
- Mini-Circuits Laboratory, Inc. [M-RF Co., Ltd.]
- Mini-Circuits Yokohama, Ltd.
- Mini-Systems, Inc. [Rikei Corp.]
- MITEQ, Inc. [Shoshin Corp.]
- MP Device Co., Ltd. [Y･K Co., Ltd.]
- M-RF Co., Ltd.
- Netwell Corp.
- Nihon Koshuha Co., Ltd.
- Peregrine Semiconductor, Inc. [Richardson Electronics K.K.]
- Pasternack Enterprises, Inc. [M-RF Co., Ltd.]
- Pilkor Electronics Co., Ltd. [PTM Corp.]
- PTM Corp.
- R & K Co., Ltd.
- RFHIC Corp. [M-RF Co., Ltd.]
- RH Laboratories, Inc. [Netwell Corp.]
- Rikei Corp.
- Sangshin Elecom Co., Ltd. [PTM Corp.]
- Sanken Co., Ltd.
- Seki Technotron Corp.
- Shoshin Corp.
- Skyworks Solutions, Inc. [M-RF Co., Ltd.]
- Spectrum Microwave, Inc. [Rikei Corp.]
- Stack Electronics Co., Ltd.
- STC Microwave Systems, Arizona [Seki Technotron Corp.]
- Summitek Instruments, Inc. [Seki Technotron Corp.]
- SV Microwave, Inc. [M-RF Co., Ltd.]
- Takitek K.K.
- Tamagawa Electronics Co., Ltd.
- The Ferrite Company, Inc. [Midoriya Electric Co., Ltd.]
- The Ferrite Components, Inc. [AET, Inc.]
- Toko Denshi Co., Ltd.
- Tokyo Keiki, Inc.
- United Monolitic Semiconductors S.A.S. [Richardson Electronics K.K.]
- Vector Telecom PTY, Ltd. [Netwell Corp.]
- Vertex Microwave Products, Inc. [Hi-Technology Trading, Inc.]
- Waka Manufacturing Co., Ltd.
- Weinschel Associates [Farad Corp.]
- Yantel Corp. [M-RF Co., Ltd.]
- Yokohama Denshi Seiko Co., Ltd.
- Yokowo Co., Ltd. DS Business Division