2006

HOW TO USE THE TABLES

Rankings: Companies are ranked below based on gross revenue they reported in 2005 for providing environmental services and products to domestic and international markets. The proportion of a firm’s gross environmental services revenue to its total gross revenue is provided as a percentage. Revenue figures are in $ millions. Percentages are rounded up or down to generate whole numbers.

Type of Firm: Designations are based on the largest proportion of environmental revenue reported by firms in seven categories: DES=Design, consulting and/or studies; CON=Construction and/or remediation; PM=Project and/or program management; EQP=Equipment and/or product manufacture; R&D=Technology and/or research & development; LAB=Laboratory and/or analytical services; OPS=Contract operations; OTH=Services not included in the above categories. Two or more designations appear if the largest proportion of revenue is evenly split between two or more categories, or if these categories are within 5% of each other. Companies not ranked among the Top 200 Environmental Firms in 2005 are designated by this symbol (**).

More detailed information on the Top 200 Environmental Firms can be found in the July 3, 2006 issue of ENR. Please click here for more information on ordering back issues.

The complete 2006 Top 200 Environmental Firms list with revenue and market data is available in PDF format. Click here for more information. Related links: Current Top 200 Environmental Firms Story View ENR's Top Ranked Firms Click below for earlier editions: 2005 edition 2004 edition 2003 edition

ENR "Top" lists or selections from the directory databases are available on pressure-sensitive labels or computer printouts. Included are the principal officer's name and title, company name and address, and phone and fax numbers. For information on purchasing mailing lists, click here.