About Us ACS helps clients in industry and government use information technology to achieve strategic and operational objectives. ACS tailors solutions from a broad suite of integrated service offerings, including e-business strategies and technologies; management and IT consulting; systems development and integration; application software; and IT and business process outsourcing. ACS has been known for its flexibility in its relationships with clients. Through numerous agreements with hardware and software technology firms, the company is able to identify and manage solutions specifically tailored to each client’s needs. ACS headquarters are in Santee, California. Having guided clients through every major wave of change in information technology, ACS combines the newest technologies with its capabilities in consulting, systems design and integration, IT and business process outsourcing, applications software, and Web and application hosting to meet the individual needs of global corporations and organizations.