- ONKYO TOKKI, LTD.
- Techno Planning Inc.
- FLYING MOLE CORPORATION
- HOEI SANGYO CO., LTD.
- WAKABAYASHI ACOUSTIC DESIGN CORP.
- ICONIC
- ACCUPHASE LABORATORY, INC.
- ASCENT
- AZDEN CORPORATION
- APPLAUSE SYSTEMS CO.
- ALFAJ, LTD.
- Hu-Com Inc.
- IMAI & COMPANY, LTD.
- ATEIS Technologies Taiwan
- EXCEL INC.
- S.C. ALLIANCE Inc.
- NTI Japan Limited
- MIT INC.
- MTS. CO. LTD
- ELECTORI CO., LTD.
- Audio-Technica Corporation
- OHASHI INDUSTRY CO., LTD.
- Acoustic Technical Laboratory, Inc.
- CURRENT, INC.
- GRAPHICA INC.
- Groove Co., Ltd. Music Library Division
- CRESCENT CO., LTD.
- K's sound create
- conisis lab. inc.
- ComodoMattina, Inc.
- KORG Inc.
- Continental Far East Inc
- SOUND JAPAN. Ltd
- SANKEN MICROPHONE CO., LTD.
- SUNMUSE
- Sigma Systems Engineering Co., Ltd.
- STUDIO EQUIPMENT CORPORATION
- Studer Japan Ltd.
- STAGE INSTRUMENTS INC.
- Smith Corporation
- Timelord ltd.
- TAKASAGO, LTD.
- TAC SYSTEM, Inc.
- TAMURA CORPORATION
- TEAC Corporation
- D&M Holdings Inc.
- DSP JAPAN LTD.
- TOA Corporation
- TC Electronic A/S Japan Branch
- Digidesign / Avid Technology K.K.
- TOKYO KO-ON DENPA CO., LTD.
- TOYO Corporation
- Tomoca Electronics Company Limited
- TRITECH Incorporated
- Dream Co. Ltd
- NISSHIN ONPA CO., LTD.
- NIHON ELECTRO HARMONIX K.K.
- NIDEC PIGEON CORPORATION
- NEUTRIK Ltd.
- HANAOKA MUSEN DENKI CO. LTD.
- Ballad. co., ltd.
- PULSE. CO. LTD
- hibino corporation
- Media Technical Co., Ltd.
- Fourbit. Corporation
- FOSTEX CO.
- Hook Up, Inc.
- Fraunhofer Institute Integrated Circuits IIS
- Bestec Audio Inc.
- BEHRINGER JAPAN
- Penn Fabrication Japan Inc.
- BOSE KABUSHIKI KAISHA
- Voltampere. Corporation
- Micropure
- MASS-kobo
- Matsuda Trading Co. Ltd.
- Maple Audio Technology
- Yamaki Electric Corporation
- YAMAHA CORPORATION
- Laguna Hills, Inc.
- CSR, Inc.
- M-Audio/Avid Technology K.K.
- CREST JAPAN CO., LTD.
- KUPO CO., LTD.
- Texas Instruments Japan Limited
