While HP served a cross-section of the IT industry, it had in particular established a significant presence in three industry group: manufacturing, telecommunications, and financial services. In addition, HP also had large installed bases in industries such as retail, hospitality, government, and health services. In manufacturing, HP was the dominant worldwide supplier of UNIX systems accounting for 45 percent of this market. HP had a wide range of customers in the manufacturing sector, which remained HP’s largest vertical market.