 | Woodard & Curran | portland, maine, united states | 1.1K | environmental services | 1979 | |
 | EnviroScience, Inc. | stow, ohio, united states | 159 | environmental services | 1989 | |
 | Newterra | coraopolis, pennsylvania, united states | 190 | environmental services | 1863 | |
 | trc companies, inc. | windsor, connecticut, united states | 6.7K | environmental services | - | |
 | Nichols Environmental (Canada) Ltd. | edmonton, alberta, canada | 47 | environmental services | 1997 | |
 | triple r oil cleaner | tris | hengelo, overijssel, netherlands | 36 | environmental services | 1990 | |
 | Skelly and Loy, Inc., / A Terracon Company | harrisburg, pennsylvania, united states | 112 | environmental services | 1969 | |
 | AMR Environmental Sdn. Bhd | seremban, negeri sembilan, malaysia | 28 | environmental services | 2001 | |
 | ETIC | pleasant hill, california, united states | 128 | environmental services | 1991 | |
 | Agri-Waste Technology, Inc. | Apex, north carolina, united states | 32 | environmental services | 1984 | |
 | Transect | San Antonio, texas, united states | 43 | environmental services | 2016 | |
 | stone environmental engineering & science | columbus, ohio, united states | 16 | environmental services | 1989 | |
 | VAST Resource Solutions Inc. | Cranbrook, british columbia, canada | 28 | environmental services | 2012 | |
 | ALTRAD | montpellier, occitanie, france | 7.2K | environmental services | 1985 | |
 | KJE | Cross Roads, texas, united states | 22 | environmental services | 2005 | |
 | Nuclear Waste Services | calderbridge, cumbria, united kingdom | 766 | environmental services | - | |
 | Essel | oakland, california, united states | 70 | environmental services | 2001 | |
 | Compliance Plus Services, Inc. | Horsham, pennsylvania, united states | 23 | environmental services | 1999 | |
 | Coppervale - now part of Saras Partners | River Forest, illinois, united states | 2 | environmental services | 2008 | |
 | ELIOSYS sa | Liège, wallonia, belgium | 5 | environmental services | 2009 | |
