| Business | Phone |
| A P Enterprises 2580 S 156th St, Seattle 98158 | (206) 243-8544 |
| Ads Environmental Svc 309 S Cloverdale St B11, Seattle 98108 | (206) 762-5070 |
| Ads Environmental Svc 5706 27th Ave Ne, Seattle 98105 | (206) 526-0430 |
| Advanced Environmental Sltn 204 1st Ave S # 3, Seattle 98104 | (206) 652-2323 |
| Air Quality & Mold Testing Inc Seattle 98101 | (206) 447-5747 |
| Alaskan Observers 130 Nickerson St 206, Seattle 98109 | (206) 283-7310 |
| Aquatic Research Instruments 6339 Seaview Ave Nw, Seattle 98107 | (206) 789-0138 |
| Earth Economics 122 S Jackson St 320, Seattle 98104 | (206) 652-5555 |
| Aspect Consulting 811 1st Ave 480, Seattle 98104 | (206) 328-7443 |
| Associated Drilling Inc 1318 E Boston St, Seattle 98102 | (206) 324-6244 |
| Atc Assoc Inc 6347 Seaview Ave Nw, Seattle 98107 | (206) 781-1449 |
| Aveda Environmental Lifestyle 2673 Ne University Vlg, Seattle 98105 | (206) 526-2610 |
| Biosonics Inc 4027 Leary Way Nw, Seattle 98107 | (206) 782-2211 |
| Cascadia Quest 4649 Sunnyside Ave N, Seattle 98103 | (206) 632-3909 |
| Cet Environmental Svc Inc 3307 Fremont Ave N, Seattle 98103 | (206) 547-1485 |
| Clayton Group Svc 1 S Campus Ctr Uw, Seattle 98103 | (206) 548-1462 |
| Clayton Group Svc 4636 E Marginal Way S 140, Seattle 98134 | (206) 763-7364 |
| Clean-Up Congress 5200 University Way Ne # 201, Seattle 98105 | (206) 528-5541 |
| Coastal Environmental Systems 820 1st Ave S, Seattle 98134 | (206) 682-6048 |
| Combustion Research Institute 600 Stewart St 700, Seattle 98101 | (206) 728-5138 |
| Compliance Professionals Inc 9325 22nd Ave Nw, Seattle 98117 | (206) 784-8191 |
| Cooke Scientific 919 Ne 71st St, Seattle 98115 | (206) 525-5105 |
| Cramer Inspection Svc 2200 Rainier Ave S, Seattle 98144 | (206) 328-4350 |
| Crestwood Group 600 1st Ave, Seattle 98104 | (206) 622-1120 |
| Dlh Environmental Consulting 2400 Nw 80th St 114, Seattle 98117 | (206) 632-3123 |
| Ecological Wisdom 1705 N 45th St, Seattle 98103 | (206) 548-1334 |
| Ecology & Environment Inc 2101 4th Ave # 1900, Seattle 98121 | (206) 624-9537 |
| Edaw Inc 815 Western Ave 300, Seattle 98104 | (206) 622-1176 |
| Emerald Services Inc 9010 E Marginal Way S 200, Seattle 98108 | (206) 832-3000 |
| Enviro-Tech Diving Inc 3636 14th Ave W, Seattle 98119 | (206) 284-8364 |
| Environment International Ltd 5505 34th Ave Ne, Seattle 98105 | (206) 525-3362 |
| Environmental Careers 1218 3rd Ave 1515, Seattle 98101 | (206) 625-1750 |
| Environmental Connections Inc 6548 Jones Ave Nw, Seattle 98117 | (206) 784-6842 |
| Environmental Financial Info 3257 16th Ave W, Seattle 98119 | (206) 284-3968 |
| Environmental Fund-Washington 1402 3rd Ave 817, Seattle 98101 | (206) 622-9840 |
| Environmental Issues Mgmt 720 Olive Way # 1625, Seattle 98101 | (206) 343-7701 |
| Environmental Protection Assoc 16415 29th Pl Sw, Seattle 98166 | (206) 246-1200 |
| Environmental Service Directry Po Box 17865, Seattle 98127 | (206) 282-2591 |
| Environmental Tank Svc Inc Seattle 53215 | (414) 647-0200 |
| Enviros 2368 Magnolia Blvd W, Seattle 98199 | (206) 301-9050 |
| Evergreen Environmental Cnsltn 2129 2nd Ave, Seattle 98121 | (206) 728-9104 |
| Evergreen Recycling Inc 3239 Harbor Ave Sw, Seattle 98126 | (206) 932-8838 |
| Evs Environment 200 W Mercer St 403, Seattle 98119 | (206) 217-9337 |
| Gordon & Assoc 1932 1st Ave, Seattle 98101 | (206) 448-5361 |
| Fernandes & Assoc Inc 9527 49th Ave Ne, Seattle 98115 | (206) 524-2882 |
| Gregory L Glass Environmental 8315 5th Ave Ne B, Seattle 98115 | (206) 523-1858 |
| Fish & Wildlife Technical Svc 506 2nd Ave, Seattle 98104 | (206) 583-0373 |
| Floyd & Snider Inc 601 Union St 600, Seattle 98101 | (206) 292-2078 |
| Frontier Geosciences Inc 414 Pontius Ave N B, Seattle 98109 | (206) 622-6960 |
| Global Ozone 1010 Valley St, Seattle 98109 | (206) 442-9038 |
| Inter-Fluve Consulting 9594 1st Ave Ne # 615, Seattle 98115 | (206) 545-6840 |
| Intertox Inc 2505 2nd Ave 415, Seattle 98121 | (206) 443-2115 |
| J S Jones & Assoc Inc 2633 Eastlake Ave E, Seattle 98102 | (206) 328-0375 |