TOSEI CORPORATION is a real estate company. The Real Estate Revitalization segment sells real estate properties revitalized through implementation. The Real Estate Development segment engages in sale of condominiums and detached houses to individual customers, and rental condominiums and office buildings to investors. The Real Estate Leasing segment leases offices and condominiums. The Real Estate Fund Consulting segment engages in asset management business of real estate funds. The Real Estate Management segment provides comprehensive property management services.