We are a manufacturers’ representative serving the specification and electrical construction community in DC, Northern Virginia, and Maryland. With an expansive portfolio of lighting, controls, electrical supplies, and window systems, we have the products and solutions your project requires. As a full-service agency, we offer many value-added services, including system startups and maintenance, healthy building design guidance, lighting calculations, energy audits, daylighting assessments, code compliance recommendations, prefabrication and productivity solutions, design-build assistance, and much more. One Source Associates is comprised of highly qualified staff, many of whom have a rich history in the electrical industry. Our credentialed team includes LEED and AIA Associates, Lighting Consultants, Construction Documents Technologists, and staff certified in the most advanced lighting controls systems. From concept and design to completion and service, our team of former architects, lighting designers, electrical engineers, and electrical contractors knows all the right products and solutions for any job or project type. We hope you will take some time to find out more about how we can assist you and the products we offer, and trust that if given the chance, we will make you glad you reached out to us.