| Business | Phone |
| Urs Corp 4288 Se International Way, Portland 97222 | (503) 659-3879 |
| A C Drives Techology Po Box 91155, Portland 97291 | (503) 625-5404 |
| Amec 7376 Sw Durham Rd # G, Portland 97224 | (503) 639-3400 |
| Spencer B Gross Inc Engineerng 13545 Nw Science Park Dr, Portland 97229 | (503) 646-1733 |
| Sjo Consulting Engineers Inc 15575 Sw Sequoia Pkwy # 140, Portland 97224 | (503) 226-3921 |
| Century West Engineering 6650 Sw Redwood Ln # 300, Portland 97224 | (503) 419-2130 |
| Roan Automotive Consulting 20853 Nw Wallula Ct, Portland 97229 | (503) 645-3356 |
| Rutherford Investment Mgmt 10260 Sw Greenburg Rd # 400, Portland 97223 | (503) 293-8401 |
| Worth Technical Svc 3004 Se 50th Ave, Portland 97206 | (503) 771-8255 |
| Wiss Janney Elstner Assoc Portland 97204 | (503) 227-1277 |
| Alpha Engineers & Constructors 2929 Nw 29th Ave, Portland 97210 | (503) 227-3317 |
| Altus Engineering 4548 N Albina Ave, Portland 97217 | (503) 760-8977 |
| Terry Consulting 2178 Sw Harbor Pl, Portland 97201 | (503) 952-7821 |
| System Design Consultants 33 Nw 1st Ave # 2, Portland 97209 | (503) 248-0227 |
| Talbott Engineers Inc 7 Se 97th Ave, Portland 97216 | (503) 256-3852 |
| Berger/Abam Engineers Inc 830 Ne Holladay St # 150, Portland 97232 | (503) 731-6041 |
| Stauffer Consulting Inc 11806 Se Madison St, Portland 97216 | (503) 252-3619 |
| Strategy Consulting 4134 N Vancouver Ave, Portland 97217 | (503) 335-3110 |
| Bouillon Engineering Oregon 315 Sw 5th Ave # 300, Portland 97204 | (503) 220-0910 |
| Brown & Caldwell 9620 Sw Barbur Blvd # 200, Portland 97219 | (503) 244-7005 |
| Carollo Engineers 4380 Sw Macadam Ave # 350, Portland 97239 | (503) 227-1885 |
| Ch2m Hill 825 Ne Multnomah St # 1300, Portland 97232 | (503) 235-5000 |
| Scott Ogren Consltng Engineer 3254 Ne Ainsworth St, Portland 97211 | (503) 284-1020 |
| S W Consulting Engineering 9414 Sw Barbur Blvd # D, Portland 97219 | (503) 245-4699 |
| Columbia Consulting Engineers 620 Sw 5th Ave # 1200, Portland 97204 | (503) 243-2850 |
| Cooper Zietz Engineers Inc 421 Sw 6th Ave # 1210, Portland 97204 | (503) 253-5477 |
| Criterion Planners/Engineers 725 Nw Flanders St # 303, Portland 97209 | (503) 224-8606 |
| Psi 6032 N Cutter Cir # 480, Portland 97217 | (503) 289-1778 |
| David Evans & Assoc Inc 2100 Sw River Pkwy, Portland 97201 | (503) 223-6663 |
| Dhi Inc 319 Sw Washington St, Portland 97204 | (503) 827-5900 |
| Ees Consulting 1135 Sw 57th Ave, Portland 97221 | (503) 223-5900 |
| Michael Elia Pe 7033 Sw Macadam Ave # 105, Portland 97219 | (503) 246-0621 |
| Engineered Systems Co 6501 Sw Macadam Ave, Portland 97239 | (503) 293-1810 |
| Parsons Brinckerhoff Quade 400 Sw 6th Ave # 802, Portland 97204 | (503) 274-8772 |
| Pavement Services Inc 541 Ne 20th Ave # 107, Portland 97232 | (503) 235-0377 |
| Ericksen Roed & Assoc 1750 Sw Skyline Blvd # 201, Portland 97221 | (503) 203-1135 |
| Fme Inc 1020 Ne 2nd Ave # 110, Portland 97232 | (503) 236-4781 |
| Forest Industries Engineering Po Box 30298, Portland 97294 | (503) 252-7487 |
| Geosyntec Consultants 838 Sw 1st Ave # 530, Portland 97204 | (503) 222-9518 |
| Glumac International 320 Sw Washington St # 200, Portland 97204 | (503) 227-5280 |
| Norwest Engineering 4110 Ne 122nd Ave # 207, Portland 97230 | (503) 254-0110 |
| Olsa Technologies Inc 3836 N Ballast St, Portland 97217 | (503) 240-0892 |
| Gregory Laird & Assoc 1801 Nw Upshur St, Portland 97209 | (503) 222-3031 |
| Haertig & Assoc 820 N River St, Portland 97227 | (503) 282-2989 |
| Harris Group 1750 Nw Naito Pkwy # 200, Portland 97209 | (503) 228-7200 |
| Hatch Mott Mac Donald 1001 Sw 5th Ave # 1100, Portland 97204 | (503) 535-8090 |
| Hdr/Ees 111 Sw 5th Ave # 1670, Portland 97204 | (503) 223-3033 |
| Miller Consulting Engineers 9570 Sw Barbur Blvd # 100, Portland 97219 | (503) 246-1250 |
| Moffatt Nichol & Bonney Inc 1845 Ne Couch St, Portland 97232 | (503) 232-2117 |
| Hood-Mc Nees Inc 1923 Se Stark St, Portland 97214 | (503) 231-7825 |
| Marco Consulting 4380 Sw Macadam Ave # 210, Portland 97239 | (503) 274-6240 |
| Mei-Charlton Inc 2233 Sw Canyon Rd, Portland 97201 | (503) 228-9663 |
| Industrial Design & Constr 2020 Sw 4th Ave # 3, Portland 97201 | (503) 224-6040 |
| Industry Consulting Engineers 1509 Sw Sunset Blvd # 2c, Portland 97239 | (503) 246-9222 |
| Integrated Inspection Systems 2420 Se 11th Ave, Portland 97214 | (503) 231-9093 |
| Interface Engineering 708 Sw 3rd Ave # 400, Portland 97204 | (503) 382-2266 |
| Livermore Associates Inc 5331 Sw Macadam Ave # 389, Portland 97239 | (503) 892-3002 |
| Ltk Engineering Svc 101 Sw Main St # 810, Portland 97204 | (503) 248-1790 |
| James D Graham & Assoc 6420 Sw Macadam Ave # 360, Portland 97239 | (503) 246-0024 |
| James Investments 319 Sw Washington St # 720, Portland 97204 | (503) 222-9301 |
| Jhi Engineering 3420 Sw Macadam Ave, Portland 97239 | (503) 223-7799 |
| Kathy Kniep Consulting 725 Nw Flanders St, Portland 97209 | (503) 309-3443 |
| Kh2a Engineering Inc 5515 Se Milwaukie Ave # 2, Portland 97202 | (503) 230-9348 |
| Kilcullen Engineering 7083 N Burrage Ave, Portland 97217 | (503) 493-2575 |
| Cornforth Consultants Inc 10250 Sw Greenburg Rd # 111, Portland 97223 | (503) 452-1100 |
| Curran-Mc Leod Inc 6655 Sw Hampton St # 210, Portland 97223 | (503) 684-3478 |
| Devin Associates Inc 10220 Sw Greenburg Rd # 205, Portland 97223 | (503) 244-7155 |
| Optical Subassemblies Llc 8194 Sw Durham Rd, Portland 97224 | (503) 639-3980 |
| Oregon Technical Svc Center Inc 1966 Nw Ramsey Crest Dr, Portland 97229 | (503) 292-9663 |
| Pacific Engineering Corp 9400 Sw Barnes Rd # 550, Portland 97225 | (503) 297-1631 |
| Novation Inc 7160 Sw Hazelfern Rd, Portland 97224 | (503) 670-1914 |
| Oliver Engineering Inc 6550 Sw Arranmore Ct # 100, Portland 97223 | (503) 244-5278 |
| Geoengineers 15055 Sw Sequoia Pkwy # 140, Portland 97224 | (503) 624-9274 |
| Mazzetti & Assoc 6650 Sw Redwood Ln # 355, Portland 97224 | (503) 620-3232 |
| Me-Tech 6135 Sw Arrow Wood Ln, Portland 97223 | (503) 292-1105 |
| M M Dunklee Consulting 10440 Sw View Ter # 100, Portland 97224 | (503) 620-1440 |