IBM Global Services is the world's largest business and technology services provider. It has over 190,000 workers across more than 160 countries. IBM Global Services started in the spring of 1991, with the aim towards helping companies manage their IT operations and resources.

Global Services has two major divisions: Global Business Services (GBS) and Global Technology Services (GTS).
IBM Global Business Services (GBS) is the professional services arm of Global Services, including management consulting

Management consulting

Management consulting indicates both the industry and practice of helping organizations improve their performance primarily through the analysis of existing organizational problems and development of plans for improvement....

, systems integration, and application management services.