TEKsystems is one of the nation's largest single source providers of information technology and communications staffing and services, providing more than 20,000 professionals to client locations every day. Our promise to you is world-class technology execution delivered with customer service that's second to none.Our headquarters are in Baltimore, Maryland, and we have more than 90 offices throughout the United States, Canada, and Europe. TEKsystems is the nation's largest IT staffing firm- ranked number one in the industry by an independent review run by IT Services Business Report.