ECS Mid-Atlantic LLC has 2,658 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 7.7%.
Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025
ECS Limited is a Chantilly, VA-based consulting engineering firm. Organizationally we have 90+ offices and more than 2,500 employees in operating subsidiaries. Subsidiaries and their headquarter offices include: - ECS Mid-Atlantic, LLC [Chantilly, VA]; - ECS Midwest, LLC [Chicago, IL]; - ECS Southeast, LLP [Raleigh, NC]; - ECS Florida, LLC [Orlando, FL]; - ECS Southwest, LLP [Dallas, TX]; - ECS Pacific, Inc. [Walnut Creek, CA]; - ECS Group of Companies [Chantilly, VA - provides administrative/support services to all operating subsidiaries]. Founded in 1988, ECS is an employee-owned corporation committed to providing high quality, innovative services. The professional staff at ECS delivers value-added solutions through our core service lines: Geotechnical Engineering, Environmental Consulting, Construction Materials Testing/Inspection, and Facilities Engineering and Consulting. 'Setting the Standard for Service’ is our corporate philosophy that permeates everything we do. We embrace providing services on time and under budget while adding value to our clients. Our goal is to provide high-quality engineering and related services; and to be recognized by our clients and colleagues for our innovative ideas, responsiveness and value. Our high repeat business volume, recommendations from our clients and professional associates are all measures of our commitment to the industry we proudly serve. At ECS, it’s not just about getting the job done – it’s about getting the job done right. Talent acquisition at ECS receives strategic focus. We keep our career center current and up-to-date! So if you are looking for a new career opportunity or know someone who is, please visit www.ecslimited.com and submit your resume through our career center for review by our dedicated recruiting team.
As of September 2025
ECS Mid-Atlantic
workforce metrics
Headcount
2.7k
Avg. Salary
$79.3k
Tenure
3.7yr
Growth Rate
7.7%
Hiring Rate
Attrition Rate
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Interactive chart of ECS Mid-Atlantic annual worldwide employee count from 2023 to 2025.
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Interactive chart of ECS Mid-Atlantic annual active job postings from 2023 to 2025.
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