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 (80), and Construction Managers (20)-based on the volume of commercial, institutional, industrial, and multifamily residential building work completed in 2008.

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.

URL:

http://www.bdcnetwork.com/info/CA6663873.html