The business units were separated into elements focused on 1) direct support and technical advice to government organizations (the SAIC portion), and 2) capability development (Leidos).

[10][7] On May 4, 2015, SAIC acquired Scitor Holdings, Inc. for $790 million to expand their presence in the intelligence industry through classified contracts, cleared personnel, and a robust security infrastructure.

[12] On September 10, 2018, SAIC announced its acquisition of Engility, a competitor in the U.S. government services contracting sector, for a combined US$2.5 billion with the merger set to take place in January 2019.

[13] On February 6, 2020, SAIC announced its acquisition of Unisys US Federal, a competitor in the U.S. government services contracting sector, for a combined US$1.2 billion.

[15][16] In 2014 Gerard Denault, SAIC's CityTime program manager, and his government contact were sentenced to 20 years in prison for fraud and bribery related to that contract.