Printed Circuit Boards
- Advanced Semiconductor Business, Inc. [PTM Corp.]
- Arlon, Inc. Materials for Electronics Division [Nakao Corp.]
- AWR Japan K.K.
- Fujitsu, Ltd.
- Inter-Continental Microwave, C.E. Precision Assemblies, Inc. [Seki Technotron Corp.]
- LPKF Japan Co., Ltd.
- MEL, Inc.
- Nakao Corp.
- PTM Corp.
- RF Test Lab Co., Ltd.
- Seki Technotron Corp.