Regular members
・Daiwa House Industry Co.,Ltd.
・Daiwa Lease Co., Ltd.
・Development Bank of Japan (DBJ)
・Fujita Corporation
・Index Strategy, Inc.
・Kumagai Gumi Co., Ltd.
・Maeda Corporation
・Mitsubishi Estate Co., Ltd.
・Nippon Steel Corporation
・Sumitomo Heavy Industries Environment Co., Ltd.
・Sumitomo Mitsui Finance and Leasing Co., Ltd.
Associate Members
・Japan Bank for International Cooperation(JBIC)
・Japan Overseas Infrastructure investment Corporation for Transport & Urban Development(JOIN)
Observer
・Overseas projects Div. Policy Bureau of Ministry of Land, Infrastructure, Transport and Tourism