NAI Ruhl & Ruhl Commercial Company, established in 1862, is one of the leading real estate companies in the United States. It offers industrial, office, retail, investment and land brokerage services to its clients. It specialises in tenant and owner s representation. Its other services include asset and portfolio management, construction management, corporate services and facilities management. It also offers feasibility studies, investment services, lease administration, market research, project and property management and property valuation. Additionally, the company provides maintenance services, including tenant retention programs, construction supervision, routine property inspections and lease administration. The company has locations in Davenport and West Des Moines, Iowa, and offers relocation services to its clients.