About EDC

EDC is a full-service construction firm with expertise in high-profile, complex projects for both private and public sector clients. Headquartered in downtown Washington, DC, EDC specializes in renovations, additions, base-building and heavy civil construction projects. Our mission is to stay abreast of cutting edge technological advances and apply this knowledge in the development of cost effective solutions for our clients.EDC is a Veteran Owned, Service Disabled Veteran Owned Business concern (SDVOB), and CBE.

Our core capabilities include:

  • General Construction
  • Heavy Civil

EDC, LLC provides its clients with the safest, most efficient and economical solutions to the environmental consulting and construction challenges of the 21st century. We provide “best value” by delivering top quality work, on time, within budget, with open communication, responsiveness and integrity.

Our commitment to Sustainable Design includes companywide training for Executives, Project Managers and Superintendents in the subject areas of Leadership in Energy and Environmental Design (LEED), Energy Star, and Green Globe and Green Advantage programs.

Our objective is to promote Sustainable Construction and Design practices. Following through with our dedication, EDC’s new Headquarters was designed to LEED Gold standards and built by EDC. EDC’s goal as a Prime and Subcontractor is to advise and assist with the Sustainable Construction process, in order to create seamless solutions for our client’s projects.


Our History

Since 1997, EDC has delivered timely and professional general construction and civil services to our clients. EDC was founded by Dennis J. Garbis with the mindset to provide clients with the highest possible level of professionalism in an atmosphere of teamwork, mutual support, and uncompromising ethical standards.  The foundation for EDC’s success has been our unrelenting focus on our Customers, Partners, and the Quality of our Work.


Core Values

EDC operates under a brief, but important list of essential values:

    • Safety: Our number one value is the safety of our employees, subcontractors, owners, and the general public. Safety is the cornerstone of our business model, individual accountability, and personal commitment of each of our employees to do their best work safely, effectively and efficiently.


    • People – We believe the potential of our company has no limit and is driven by our leadership, our employees, our partners, and our drive to succeed. We are committed to an environment that attracts highly skilled professionals, motivates our staff to achieve our company’s Vision, and recognizes success and high performance.


    • Efficient Results –EDC strategically provides unique partnership solutions in order to deliver superior quality projects on time and budget. Our clients are one of our most important aspects to the success of EDC.


  • Quality – We must take pride in everything we do. From our people, to our services and in our relationships with business partners and the community, quality is our signature.


EDC is committed to these values and to exhibiting the highest level of integrity and ethical behavior in every facet of our work. This standard of conduct is expected of every employee, regardless of position, and is reinforced in the EDC Code of Conduct and performance management processes.

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