ATCS is a leading professional engineering consulting firm providing comprehensive, multidisciplinary services. ATCS has grown into a leading firm in the region by assisting client in achieving their goals and building a better future for the communities in which we serve. Established in 1994, ATCS has approximately 250 employees and eight offices across Virginia, Pennsylvania, Maryland and North Carolina and has access to expert resources to design, build, plan and manage the successful delivery of its clients’ projects and programs.

ATCS believes in enabling our clients, employees, and communities to flourish.


  • ENR Top 100 Construction Management Firm
  • ENR Top 500 Design Firm in the nation
  • Washington Business Journal as #8 Largest Engineering firm in Greater D.C
  • Washington Post named ATCS a 2020 Top Workplace
  • WTS Central Virginia Chapter named ATCS a 2020 Employer of the Year