Power Supplies
- Advanced Electronics Technology Associates, Inc. [AET, Inc.]
- Advanced Semiconductor Business, Inc. [PTM Corp.]
- AET, Inc.
- Comcraft Corp.
- Diversified Technologies, Inc. [AET, Inc.]
- Ensign Power Systems, Inc. [Netwell Corp.]
- Ensign Power Systems, Inc. [Rikei Corp.]
- Keycom Corp.
- Microdenshi Co., Ltd
- M-RF Co., Ltd.
- Muegge Electronic GmbH [AET, Inc.]
- Netwell Corp.
- Nihon Koshuha Co., Ltd.
- PTM Corp.
- Rikei Corp.
- SAIREM [AET, Inc.]
- Troicom, Inc. [PTM Corp.]