BL Companies, Meriden, Ct. www.blcompanies.com BL Companies is an architecture, engineering and environmental sciences consulting firm founded in 1986. The firm has grown over the years to a national practice with over 175 professionals and support staff located in five regional offices throughout the eastern United States. BL Companies consistently ranks as one of the Top 500 design firms in the U.S. by Engineering News-Record. BL provides clients with integrated solutions to complex challenges through its dynamic and energetic group of dedicated professionals. For private, public and institutional clients, the firm can deliver the full range of design and related services to bring a project from concept to completion.