The followings are the organizations related to the international affairs of the JARA.
- Public Sector
- Road Bureau, Ministry of Land, Infrastructure, Transport and Tourism
- National Institute for Land and Infrastructure Management
- Public Works Research Institute
- Japan Expressway Holding and Debt Repayment Agency
- Associations
- Japan Road Contractors Association
- Japan Bridge Association
- Japan Prestressed Concrete Contractors Association
- Japan Bridge Engineering Center
- Infrastructure Development Institute-JAPAN
- Expressway Companies
