[1] Mathematica employs approximately 1,900 researchers, analysts, technologists, and practitioners[2] in nine offices across the United States: Princeton, New Jersey; Cambridge, Massachusetts; Chicago, Illinois; Washington, DC; Ann Arbor, Michigan; Seattle, Washington;[3] Woodlawn, Maryland; Tucson, Arizona and Oakland, California.
[4] Mathematica's clients include federal agencies, state and local governments, foundations, universities, private-sector companies, and international organizations.
[9] MPR became a subsidiary of Mathematica in 1975 and was known for its large-scale random assignment evaluations of policies and programs such as abstinence education and Job Corps.
In 2010, Mathematica established the Center on Health Care Effectiveness (CHCE), a resource for policymakers, the public, and other stakeholders.
[13] Today, the company centers on research consultation for policy topics including disability, early childhood, education, family support, health, international, labor, and nutrition.