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Westat, Inc.


2018 Vault Rankings

At a Glance


Large, employee-owned research and statistical survey corporation

Commitment to diversity and social responsibility


High pressure and heavy workloads

Frequent use of contract workers

The Bottom Line

As an employee-owned premier research and statistical survey company, Westat, Inc. leads the marketplace in evidence-based research for corporations and government.

About Westat, Inc.

Survey the market research business, and you'll find Westat among the leaders of the pack. A statistical survey organization, the company provides research and consulting services, including study design and analysis, data collection, program evaluation, and communications. It has technical expertise in survey and analytical methods, information technology, biomedical science, and clinical trials. Westat serves US, state, and local government clients, in addition to businesses and foundations. It has offices in eleven US states, as well as international locations around the world. The company was founded in 1963 and is employee-owned.


Westat's six areas of focus include behavioral health & health policy, clinical trials, education, public health & epidemiology, social policy & economics, and transportation.

Geographic Reach

Westat, Mary Land-based, has more than 10 regional offices in the US along with offices in three overseas locations in Liberia, Costa Rica; Johannesburg, South Africa; and  Bangkok, Thailand.

Sales and Marketing

Westat clients include Internal Revenue Service, National Science Foundation, Social Security Administration, U.S. Department of Agriculture, U.S, Chicago Metropolitan Agency for Planning, ClearWay Minnesota, DC Public Schools, Georgia Department of Transportation, Maryland Cancer Registry, NYC Mayor's Office for Economic Opportunity, Texas Education Agency, Organization for Economic Cooperation and Development, The Johns Hopkins University, Toyota, University of Denver and University of Maryland Baltimore Campus.


Westat continues to pioneer new ways to support the changing needs of its clients. Its unique collaborative culture enables it to create dynamic multifaceted teams with broad experience across a wide range of topics.

In early 2020, Westat partnered with University of Louisville to carry out COVID-19 active viral infection and antibody testing on a stratified random sample of adult residents of Jefferson County Kentucky, where Louisville is located. Westat used address-based sampling to identify the sample and screened households to recruit approximately 2,400 individuals who were directed to testing sites around the country.

Westat also provided products to help grantees for the U.S. Department of Education's Office of Special Education Programs (OSEP) conduct better evaluations.

Westat, Inc.

1600 Research Blvd
Rockville, MD 20850-3129
Phone: 1 (301) 251-1500

Firm Stats

Employer Type: Privately Owned
VP Planning and Finance: Patricia Espey-English
Director Manager Supervisor: Marsha Hasson
President: James E. Smith
Employees (This Location): 1,750
Employees (All Locations): 2,000

Major Office Locations

Rockville, MD

Other Locations

Atlanta, GA
Frederick, MD
Durham, NC
Houston, TX