In the latest ranking of 67 owner-operated real estate companies, Sun Frontier Fudousan ranked 6th and PARK24 ranked 3rd. The governance issues surrounding the leak of PARK24 customer information have also been highlighted.
The Diamond editorial team scored 1,885 listed owner-operated companies based on six metrics: market capitalization, revenue, operating margin, return on assets (ROA), equity ratio and current ratio, and created a ranking out of 100 points. This feature presents the rankings of 67 owner-operated companies in the real estate industry.
In the real estate company ranking in question, Sun Frontier Fudousan ranked 6th and PARK24 ranked 3rd, while the top-ranked company is not identified in the article. PARK24 is treated as an owner-operated company that runs businesses including Times Parking and Times CAR.
PARK24 is led by President Nishikawa Koichi (西川 光一), the son of its founder, while the Nishikawa family, the founding family, holds approximately 17% of the company’s shares. However, the company discovered unauthorized access to its systems in late September 2026, and of the personal information of 6,600,000 members that was leaked, image data of identity verification documents, including driver's licenses, was also leaked for approximately 1,600,000 records. A class-action lawsuit is also being considered, raising concerns about the impact on business performance.
The current rankings are based on data covering all listed companies, compiled with the cooperation of the Diamond editorial team and the Family Business White Paper Planning and Editorial Committee. The next page presents the remainder of the ranking of 67 owner-operated companies in the real estate industry.