Altus has a long-term history performing work for the Army Research Lab with over 15 prime contracts totaling more than $50 million to date. With a focus on ballistic modeling and simulation, this work has included software and methodology development, basic and applied research, as well as combat and protective system analysis.

Altus is a prime contractor on the Army Data and Analysis Center's Joint Technical Coordinating Group for Munitions Effectiveness (JTCG/ME) IDIQ Contract. This 5-year contract, $48 million for engineering and other analytical services in support of survivability/vulnerability and other effectiveness studies runs through September 2023.

Altus is a prime contractor on the Army's Responsive Strategic Sourcing for Services (RS3) IDIQ Contract. This 10-year, $37.4 billion contract for engineering and other professional services in support of C4ISR mission requirements runs through March 2027.

Altus is a prime contractor on the JE-RDAP IDIQ Contract for JPEO-CBD. This 9-year, $8.27 billion contract for R&D, Acquisition, and Production/Procurement for equipment development in the fields of Chemical, Biological, Radiological, Nuclear, and Explosive (CBRNE) runs through October 2027.

Altus has held a GSA Federal Supply Schedule contract (No. GS-10-F-0155V) for Professional Engineering Services since April 2009. Altus has maintained active prime contracts through this schedule since its award, and has received an extension through April 2024. GSA's Professional Services schedule supports approximatesly $10 billion of engineering services work annually.

Altus is a prime contractor on the US Navy's SeaPort-NxG (Next Generation) IDIQ contract. This 10-year, $50 billion contract, which is used to provide engineering and other technical services across the entire Navy, runs through December 2028.