- IRIS Corporation
- Ishimoto Architectural & Engineering Firm, Inc.
- Ito construction Co., Ltd.
- IMU Urban Development Co.,Ltd.
- Wizardz International Law Office
- Shigeru Uchida Tax Accountant Office
- S-TEC service Co., Ltd.
- Area Partners Co., Ltd.
- Oka Takashi Administrative Law Office
- Kamizono construction Co., Ltd.
- Kan architect office
- Kandenko Co., Ltd.
- Kioi general law office
- Capitalhouse Inc.
- KINDEN CORPORATION Tokyo Branch
- Global Business & Study Research Institute
- Susumu Kuwaki (Doctor)
- K.I.CONSULTANTS
- Kenko Architects
- Kokudo Appraisal Institute, Inc.
- Cosmos lnitia Co., Ltd.
- Cosmos More Co.,Ltd.
- Land Surveyor Yoshio Kobayashi Office
- Colliers International Japan KK
- COMPASSO Tax accountant corporation
- WATANABE SATO CO., LTD.
- Santo Real Estate Apraisal Office
- SHIMIZU CORPORATION
- Social welfare corporation Silver Wing
- shinei.co.ltd.
- SHINSAMPEI CONSTRUCTION CO.,LTD.
- Shinwa Shoko Co., Ltd.
- Soma Judicial Scrivener Corporation
- SOCIATRUST Co., Ltd.
- Takamatsu Corporation Co., Ltd.
- TAKT Plan Tokyo Architect Office Tokyo co.,LTD
- TAKENAKA CORPORATION
- Tanaka Shokai Co., LTD
- DAIICHI KOGYO CO., LTD. Yokohama Branch
- Daisou Co., Ltd.
- DAITOH ELECTRIC CONSTRUCTION CO.,LTD Kanagawa Head Office
- Dai Nippon Construction
- Daiwa House Industry Co., Ltd. Tokyo Head Office
- DAIWA LIFENEXT CO., LTD.
- Design and Management Inc.
- TOA CORPORATION East Japan Office
- TOA ROAD CORPORATION
- Toden Real Estate Co., Inc.
- Nice Corporation
- NIINO KENSETSU,inc.
- NIPPO CORPORATION
- Misako Yasuda(Nippon Life Insurance Company)
- Nomura Real Estate Development Co., Ltd.
- PTC Japan Ltd.
- Fido Inc.
- Fujita Corporation East Japan Branch
- Fujita & Partners Administrative Law Office Corporation
- BRAIN TRUST SENIOR REGISTERED ARCHITECTS AND ENGINEERING OFFICE INC.
- Japan Property Solutions Co., Ltd.
- Pro Five Consultants Coporation
- Japan Automobile Distribution Systems, Inc.
- Town Building Association Corporation
- Matsui Kensetsu K.K. Tokyo Branch
- MATSUMURA-GUMI Corporation Tokyo Branch
- Mitsugi Kensetsu Kougyou
- Mitsubishi Estate Residence Co., Ltd.
- MITSUYOSHI ELECTRIC ENGINEERING CO., LTD
- Mevius Works Co., LTD
- Mapletree Investments Japan K.K.
- Mori Building Co.,Ltd
- Yuki Construction.co.,LTD.
- Yuken Koumuten Co.,Ltd.
- URLinkage Co., LTD
- Wakamatsu Estate Co., Ltd.
- Toyama Associates Consulting International KK
( 75 members, as of March 31, 2021 )