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  • Engineering Consulting Service
    Engineering Consulting Service
    (703) 471-8400
    14026 Thunderbolt Place, 20151  Chantilly

    Engineering Consulting Services. (ECS) is a group of six diverse consulting firms specializing in the related fields of geotechnical, environmental, and construction materials engineering.Founded in 1987, the six subsidiaries in the ECS group now employ a staff of more than 1000 people, including r…