ERG is a multidisciplinary consulting firm offering a broad range of professional services. From offices across the country, we serve a spectrum of public and private clients, including federal agencies, state governments, corporations, and universities.

Climate Change Digital and Information Solutions Drinking Water Protection Air Quality Ecological Services Economic and Policy Analysis Energy Environmental and Occupational Health Facilities Planning and Engineering Laboratory Services Life Cycle Services Mobile Sources Organizational Effectiveness Permitting Compliance and Enforcement Public Health Strategic Communications Wastes and Toxics Water Quality and Resource Management Waste/Recycling/Environmental Environmental Controls Environmental Services Consulting Business Services