| Business | Phone |
| Alpha Environmental Svc Inc 9150 Sw Salmon St, Portland 97225 | (503) 292-5346 |
| Biond Environmental 2686 Nw Kennedy Ct, Portland 97229 | (503) 297-1305 |
| Shaw E & I 10300 Sw Nimbus Ave, Portland 97223 | (503) 639-8260 |
| A E Assoc Inc 5620 Sw Kelly Ave # 2, Portland 97239 | (503) 977-3622 |
| Z M Assoc 2936 Nw Upshur St, Portland 97210 | (503) 223-1589 |
| Waste Xpress Environmental Svc Po Box 31100, Portland 97231 | (503) 224-3206 |
| Accord Construction Inc 8113 Ne Holman St, Portland 97218 | (503) 251-8557 |
| Turbo Systems Inc Portland 97219 | (503) 244-7085 |
| Turnstone Environmental 10902 Nw Skyline Blvd, Portland 97231 | (503) 283-5338 |
| U Sesenv 5061 N Lagoon Ave, Portland 97217 | (971) 222-2550 |
| Urs Corp 111 Sw Columbia St # 1500, Portland 97201 | (503) 222-7200 |
| Terra Science Inc 4710 Sw Kelly Ave # 1, Portland 97239 | (503) 274-2100 |
| Tetra Tech Fw Inc 1020 Sw Taylor St # 530, Portland 97205 | (503) 222-4536 |
| Thermo Fluids Inc 6400 Se 101st Ave # 2, Portland 97266 | (503) 788-4612 |
| Sustainable Ecosystems Inst 2100 Sw River Pkwy, Portland 97201 | (503) 246-5008 |
| Swanson Hydrilogy 1346 Sw Bertha Blvd, Portland 97219 | (503) 230-9204 |
| Stormwater Management 12021 Ne Airport Way # B, Portland 97220 | (503) 240-3393 |
| Brightworks Northwest Po Box 10579, Portland 97296 | (503) 225-1985 |
| Cabin Air Technologies 1132 Sw 19th Ave # 505, Portland 97205 | (503) 295-1151 |
| Jessica Casting Stuart 9320 Sw Barbur Blvd, Portland 97219 | (503) 246-1953 |
| Ccs-Cowlitz Sweep 9420 Nw Saint Helens Rd, Portland 97231 | (503) 247-9466 |
| Celilo Group 3941 Se Hawthorne Blvd, Portland 97214 | (503) 226-7798 |
| Certified Environmental Inc Portland 97204 | (503) 221-7904 |
| Chaney Corp 1515 Sw 61st Dr, Portland 97221 | (503) 296-6733 |
| Clear Water West Inc 7306 Se Main St, Portland 97215 | (503) 257-9359 |
| Remtech Inc 9368 Se Dundee Ct, Portland 97266 | (503) 238-3552 |
| Rivers Foundation-The Americas 4528 Se Clay St, Portland 97215 | (503) 274-7704 |
| Condition Assessment Tech Po Box 80431, Portland 97280 | (503) 452-8318 |
| Practical Environmental 4020 Ne Buffalo St, Portland 97211 | (503) 287-0104 |
| Premier Environmental Svc 333 Sw 5th Ave, Portland 97204 | (503) 241-8172 |
| E T Environmental 1028 Se Water Ave, Portland 97214 | (503) 232-9600 |
| Point Source Solutions 2419 Se 11th Ave, Portland 97214 | (503) 236-5885 |
| Ecology & Environment Inc 333 Sw 5th Ave # 608, Portland 97204 | (503) 248-5600 |
| Enviro Logic Resources 2830 Sw Plum Cir, Portland 97219 | (503) 768-5121 |
| Envirocon Inc 3330 Nw Yeon Ave # 240, Portland 97210 | (503) 285-6164 |
| Environmental & Occupational 1302 Nw Kearney St # F, Portland 97209 | (503) 242-9363 |
| Environmental Quality Mgmt 4537 Ne 11th Ave, Portland 97211 | (503) 493-9122 |
| Environmental Science 510 Sw 3rd Ave # 410, Portland 97204 | (503) 478-0424 |
| Environmental Strategies Llc 537 Se Ash St, Portland 97214 | (503) 233-3980 |
| Environomics Po Box 80761, Portland 97280 | (503) 244-4515 |
| Paulsen Environmental Research 10175 Sw Barbur Blvd, Portland 97219 | (503) 245-8186 |
| Pbs Engineering & Envrnmntl 4112 Sw Corbett Ave, Portland 97239 | (503) 248-1939 |
| Evren Northwest 1127 Se 10th Ave, Portland 97214 | (503) 452-5561 |
| Oregon Natural Step Network 720 Sw Washington St # 800, Portland 97205 | (503) 241-1140 |
| Fishman Environmental Svc 434 Nw 6th Ave # 304, Portland 97209 | (503) 224-0333 |
| Northwest Environmental Bsns 121 Sw Salmon St, Portland 97204 | (503) 227-6361 |
| Nurpu 2234 Se 20th Ave, Portland 97214 | (503) 236-3799 |
| Goodman Brothers Inc 2745 Se 84th Ave, Portland 97266 | (503) 774-1627 |
| Mursen Environmental Inc 7645 Sw Capitol Hwy, Portland 97219 | (503) 977-9929 |
| Nrc Environmental Svc 6211 N Ensign St, Portland 97217 | (503) 283-1150 |
| Martin S Burck Assoc Portland 97219 | (503) 977-2401 |
| Integral Consulting Inc 319 Sw Washington St # 1150, Portland 97204 | (503) 284-5545 |
| Jaco Environmental 13428 Ne Jarrett St, Portland 97230 | (503) 252-9035 |
| Jones & Stokes 317 Sw Alder St # 800, Portland 97204 | (503) 248-9507 |
| Keen Services Llc 0320 Sw Grover St, Portland 97239 | (503) 796-2744 |
| Decommission Inc Portland 97225 | (503) 292-5915 |
| Quality Environmental Svc 1920 Sw Wellington Ave, Portland 97225 | (503) 641-5890 |
| Environmental Management 10565 Nw Harding Ct, Portland 97229 | (503) 641-5808 |
| Erm Inc 6650 Sw Redwood Ln # 300, Portland 97224 | (503) 542-8007 |
| Integrated Environmental Tech 10300 Sw Greenburg Rd # 460, Portland 97223 | (503) 892-4995 |
| Keystone Natural Resource 14694 Nw Jewell Ln, Portland 97229 | (503) 629-5093 |
| K & S Environmental Inc 4475 Sw Scholls Ferry Rd # 256, Portland 97225 | (503) 291-1454 |