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Top Lists
ENR attempts to bring structure to an otherwise huge and chaotic construction industry by performing annual surveys of its key segments, and ranking companies engaged in general contracting, specialty contracting, engineering, architecture and environmental services, among other specialties. The rankings, based on annual revenue at home and abroad, are further divided into specific market categories. ENR Sourcebooks take that market analysis to a more detailed level by ranking industry leaders in particular market subsets. NOTE: Analyses marked with a PDF icon require an annual ENR print subscription to access.
Top Design Firms
ENR Top 500 Design Firms

The Top 500 Design Firms list, published annually in April, ranks the 500 largest U.S.-based designs firms, both publicly and privately held, based on design-specific revenue.

Top Contractors
ENR Top 400 Contractors

The Top 400 Contractors list, published annually in May, ranks the 400 general contractors, both publicly and privately held, based on construction contracting-specific revenue.

Top Environmental Firms
ENR Top 200 Environmental Firms

ENR's list of the Top 200 Environmental Firms, published annually in August, provides a look at key players, based on revenue, in the global environmental services market—in areas from hazardous and nuclear waste cleanup to environmental sciences and water-wastewater treatment facility design and construction. Please click below for a quick list of the 2013 Top 200 Environmental Firms, and below that for a more detailed market overview and analysis.

Top Green Design Firms
ENR Top Green Design Firms

ENR has produced a ranking of top 100 green design firms based on the volume of sustainable and "Green" projects they have worked on.

Top Green Contractors
ENR Top Green Contractors

ENR has produced a ranking of top 100 green contractors based on the volume of sustainable and "Green" projects they have worked on.

Top International Design Firms
ENR Top International Design Firms

The Top 225 International Design Firms list, published annually in July, ranks the 225 largest world designs firms, both publicly and privately held, based on design-specific export revenue--generated from projects outside each firm's respective home country.

Top Global Design Firms
ENR Top 150 Global Design Firms

The Top 150 Global Design Firms list, published annually in July, ranks the 150 largest world designs firms, both publicly and privately held, based on total design-specific revenue regardless of where the projects were located.

Top International Contractors
ENR Top International Contractors

The Top 250 International Contractors list, published annually in August, ranks the 250 largest world construction contractors, both publicly and privately held, based on general construction contracting export revenue—generated from projects outside each firm's respective home country.

Top Global Contractors
ENR Top Global Contractors

The Top 250 Global Contractors list, published annually in August, ranks the 250 largest world construction contractors, both publicly and privately held, based on total construction contracting revenue regardless of where the projects were located.

Top Specialty Contractors
ENR Top Specialty Contractors

ENR's Top 600 Specialty Contractors is a comprehensive package of data and analysis. It contains the rankings by revenue of the 600 largest specialty contractors in the U.S., the previous year's rankings, revenue and the percentage of revenue by markets.

Top 100 Design-Build Firms
ENR Top 100 Design-Build/CM Firms

The Top 100 Design-Build Firms list, published annually in June, ranks the 100 largest U.S. design-build firms, both publicly and privately held, based on revenue derived from projects delivered using the design-build project delivery system.

Top 100 CM-for-Fee Firms
ENR Top 100 Design-Build/CM Firms

The Top 100 Construction Management for Fee list, published annually in June, ranks the 100 largest U.S. construction firms, both publicly and privately held, based on agency CM fees for project-related construction management projects.

Top 100 CM-at-Risk Firms
ENR Top 100 Design-Build/CM Firms

The Top 100 Construction Management At-Risk list, published annually in June, ranks the 100 largest U.S. construction firms, both publicly and privately held, based on revenue derived from projects where they provide CM services on at at-risk basis. (where the firms accept the legal and financial risks associated with delivering the construction project.)

Top 50 Program Managers
ENR Top 100 Design-Build/CM Firms

The Top 50 Progam Management for Fee list, published annually in June, ranks the 40 largest U.S. construction firms, both publicly and privately held, based on agency PM fees for multi-project construction programs.

Top Chinese Design Firms
ENR Top Chinese Design Firms and Contractors

Data was compiled by Construction Times, a Shanghai-based industry newspaper, based on ENR-designed survey questionnaire. The lists rank the top 60 China-based contractors and the top 60 China-based design firms, both publicly and privately held, based on their contracting- or design-specific revenues.

Top Chinese Contractors
ENR Top Chinese Contractors

Data was compiled by Construction Times, a Shanghai-based industry newspaper, based on ENR-designed survey questionnaire. The lists rank the top 60 China-based contractors and the top 60 China-based design firms, both publicly and privately held, based on their contracting- or design-specific revenues.

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