Gartner, Inc, officially known as Gartner, is a global research and advisory firm providing information, advice, and tools for leaders in IT, finance, HR, customer service and support, communications, legal and compliance, marketing, sales, and supply chain functions.[2] Its headquarters are in Stamford, Connecticut, United States. The firm changed its name from Gartner Group, Inc to Gartner in 2000.[3] It is a member of the S&P 500.[4]

Research provided by Gartner has historically targeted CIOs, senior IT, marketing, and supply chain managers. The acquisition of CEB, Inc. has expanded its range and breadth of offerings to support every business function in every industry and enterprise size.[5][2] Gartner clients include large corporations, government agencies, technology companies, and the investment community. Its client base consists of over 15,000 organizations in over 100 countries.[2] The company's products and services include Research, Executive Programs, Consulting, and Conferences. Founded in 1979, Gartner has over 15,000 employees located in 100+ offices worldwide.