Global Business Services (GBS) is a private consulting firm with a successful track record. GBS contributes to sustainable development in a number of fields, including water and waste water, natural resources management, economic and business analysis, and MIS development. The core of the company's service philosophy is overwhelming emphasis on quality, professionalism and consistency of services, which are ensured by the superb set of service instruments, techniques and methodologies. Sound service quality and effective customer relations lead to high level of client satisfaction and repeat business ratio, which is more than 90% for GBS clients.