Deltek is an American multinational corporation based in Herndon, Virginia, specializing in enterprise software and information solutions. Founded in 1983 by Donald and Kenneth E. deLaski, the company has been a leader in providing software tailored for project-focused industries. Since 2016, Deltek has been a subsidiary of Roper Technologies. The company offers a range of software solutions that assist clients in managing customer information, financial and project accounting, project management, risk management, and enterprise resource planning. Deltek's core product, Deltek GCS Premier, is designed to meet the needs of various sectors, including aerospace and defense, construction, engineering, and government contracting. With a strong presence in the public sector, Deltek claims to support 95% of public sector spending in the U.S. and Canada. The company has a diverse customer base, including notable firms like Bechtel Corp. and Verizon, and employs around 3,000 people across multiple global locations.