Simulators
- Advanced Electronics Technology Associates, Inc. [AET, Inc.]
- AET, Inc.
- Agilent Technologies JAPAN, Ltd.
- Ansoft Japan K.K.
- AWR Japan K.K.
- Bluetest AB [Toyo Corp.]
- Centellax, Inc. [PTM Corp.]
- CORNES DODWELL LTD.
- CST - Computer Simulation Technology AG [AET, Inc.]
- Fujitsu, Ltd.
- Keisoku Engineering System Co., Ltd.
- Keycom Corp.
- Kozo Keikaku Engineering, Inc.
- MEL, Inc.
- MEL, Inc. [Netwell Corp.]
- MicroWave Factory Co., Ltd.
- Sonnet Giken Co., Ltd.
- Sonnet Software, Inc. [Sonnet Giken Co., Ltd.]
- Toyo Corp.
- Troicom, Inc. [PTM Corp.]
- WIPL-D (JAPAN), Inc.
- Zeland Software, Inc. [Farad Corp.]