Japan Investment Adviser Co., Ltd. is mainly engaged in the operating lease business. The Operating Lease segment provides arrangement service of operating leases for aircrafts and containers. The Others segment provides merger and acquisition (M&A) advisory services. This segment also involves the private equity fund to solar power generation business. In addition, the Company also involves in the journalism and publishing business, advertising business, as well as the Investor Relation (IR) business. The Company also involves in the parts out and conversion business for aircrafts, as well as IPO consulting business.