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Each spring, BD+C editors survey the country’s largest AEC firms in the nonresidential building industry. Companies are ranked across six categories—Architects (50), Architect/Engineers (50), Engineers (50), Engineer/Architects (50), Contractors (75), and Construction Managers (25)—based on the volume of commercial, institutional, industrial, and multifamily residential building work completed in 2006.
Design firms are ranked on billings for work performed in-house. Contractors and construction managers are ranked on the value of construction put in place. For multi-year jobs, only work from the survey year applies.
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