Engineering Consulting Services (ECS) is a premier provider of engineering, construction materials, environmental and facilities consulting services across the United States. With more than 2,500 employees and over 35 years of experience, ECS delivers responsiveness, accomplishment and growth to both the private and public sectors. ECS has been ranked among the Top 100 Pure Design Firms by ENR and has become one of the largest consulting firms in the country. For more information on ECS and our complete office listings, please visit our website.