| Business | Phone |
| Applied Power & Control Co 3011 W Grand Blvd, Detroit 48202 | (313) 871-5512 |
| Ch2m Hill 3011 W Grand Blvd 2500, Detroit 48202 | (313) 871-5400 |
| Lakeshore Engineering Svc 7310 Woodward Ave 5, Detroit 48202 | (313) 865-0912 |
| Science & Engineering Fair 5020 John R St, Detroit 48202 | (313) 831-4825 |
| M T Bivins & Assoc 12425 Birwood St, Detroit 48204 | (313) 935-5956 |
| Viswealth Inc 8939 Birwood St, Detroit 48204 | (313) 931-2849 |
| Production Technology 20530 Hoover St, Detroit 48205 | (313) 371-1740 |
| Lazaros Engineering 1111 Bellevue St, Detroit 48207 | (313) 579-2186 |
| Nickifor Lebar Pe 1311 Joliet Pl, Detroit 48207 | (313) 393-9689 |
| Lasco 1111 Bellevue St, Detroit 48207 | (313) 579-7169 |
| Cte 2550 W Grand Blvd, Detroit 48208 | (313) 897-1846 |
| Sleepyhauler Trailers Inc 1300 E Lafayette St 206, Detroit 48207 | (313) 259-0599 |
| Detroit Waste Water Partners 9300 W Jefferson Ave, Detroit 48209 | (313) 554-3010 |
| Hollingsworth Logistics Mgmt 4815 Cabot St, Detroit 48210 | (313) 581-1048 |
| Engineering & Construction Svc 8469 E Jefferson Ave, Detroit 48214 | (313) 821-8821 |
| Hall Engineering 1300 S Fort St, Detroit 48217 | (313) 843-6697 |
| Engineering Hall 1300 S Fort St, Detroit 48217 | (313) 551-0431 |
| Aina Assoc Inc 18933 Glenhurst St, Detroit 48219 | (313) 531-1070 |
| Iocad Engineering Svc Inc 20109 W 8 Mile Rd, Detroit 48219 | (313) 541-8325 |
| Rama Rao & Alfred Inc 18447 W 8 Mile Rd, Detroit 48219 | (313) 535-9580 |
| Consulting Engineering Assoc 16580 Wyoming St, Detroit 48221 | (313) 341-5986 |
| Meb & Sons Enterprises 19121 Berkeley Rd, Detroit 48221 | (313) 340-0176 |
| Sidney E Shorter & Assoc 16610 James Couzens Fwy, Detroit 48221 | (313) 342-4118 |
| Rhodes & Assoc Inc 18241 Schoolcraft, Detroit 48223 | (313) 835-6026 |
| Abe Assoc Inc 155 W Congress St 450, Detroit 48226 | (313) 961-5170 |
| Advanced Logic Inc 1150 Griswold St, Detroit 48226 | (313) 963-4300 |
| Arait Engineering Inc 400 Monroe St, Detroit 48226 | (313) 962-1162 |
| Bbf Engineering Svc 333 W Fort St 1450, Detroit 48226 | (313) 962-8961 |
| Black & Veatch 333 W Fort St 1750, Detroit 48226 | (313) 962-0300 |
| C C Johnson & Malhotra 672 Woodbridge St 202, Detroit 48226 | (313) 393-3434 |
| Consoer Townsend Envirodyne 1249 Washington Blvd 1243, Detroit 48226 | (313) 961-5261 |
| Detroit Testing Consultants 601 W Fort St L100, Detroit 48226 | (313) 965-0600 |
| Dlz Michigan Inc 151 W Congress St 328, Detroit 48226 | (313) 961-4040 |
| Finkbeiner Pettis & Strout Inc 65 Cadillac Sq 2719, Detroit 48226 | (313) 965-8436 |
| Dte Engineering Svc 2000 3rd St, Detroit 48226 | (313) 235-6680 |
| Femi Talabi Assoc 1150 Griswold St 3300, Detroit 48226 | (313) 961-0990 |
| Economic Growth Intl 211 W Fort St, Detroit 48226 | (313) 961-9101 |
| Enviro Matrix 163 Madison St 104, Detroit 48226 | (313) 964-1550 |
| Environmental Consulting/Tech 719 Griswold St, Detroit 48226 | (313) 963-7404 |
| Greeley & Hansen 211 W Fort St, Detroit 48226 | (313) 628-0730 |
| Gannett Fleming Inc 645 Griswold St 2180, Detroit 48226 | (313) 964-8908 |
| Giffel-Webster Engineers Inc 407 E Fort St 600, Detroit 48226 | (313) 962-4442 |
| H H Engineering Ltd 220 Bagley St 500, Detroit 48226 | (313) 963-6560 |
| Hdr 407 E Fort St 200, Detroit 48226 | (313) 961-0410 |
| Hubbell Roth & Clark Inc 220 Bagley St 420, Detroit 48226 | (313) 965-3330 |
| Jacobs Engineering 565 E Larned St 200, Detroit 48226 | (313) 964-3431 |
| Hazen & Sawyer Environmental 500 Griswold St 3300, Detroit 48226 | (313) 961-3050 |
| Hntb Michigan Inc 719 Griswold St 620, Detroit 48226 | (313) 961-3330 |
| Metco Services Inc 1274 Library St 400, Detroit 48226 | (313) 961-4560 |
| Mdotfwyops 1050 6th St, Detroit 48226 | (313) 965-0777 |
| Nth Consultants Ltd 2000 Brush St 480, Detroit 48226 | (313) 271-3300 |
| Petra Tech 65 Cadillac Sq, Detroit 48226 | (313) 224-9801 |
| Ralph Tyler Co 615 Griswold St 210, Detroit 48226 | (313) 964-5365 |
| Rbk Automation 645 Griswold St 719, Detroit 48226 | (313) 962-5150 |
| Parsons Brinckerhoff Constr 535 Griswold St 1525, Detroit 48226 | (313) 963-5760 |
| Professional Engineering Svc 220 Bagley St 930, Detroit 48226 | (313) 964-1700 |
| Sigma Associates Inc 535 Griswold St 1700, Detroit 48226 | (313) 963-9700 |
| Scales & Assoc Inc 28 W Adams Ave 1100, Detroit 48226 | (313) 962-8830 |
| Robert J Davis 1249 Washington Blvd 2410, Detroit 48226 | (313) 965-7474 |
| Superior Construction & Mgmt 65 Cadillac Sq, Detroit 48226 | (313) 964-5750 |
| Somat Engineering Inc 660 Woodward Ave, Detroit 48226 | (313) 963-2723 |
| Spalding De Decker 220 W Congress St 400, Detroit 48226 | (313) 967-4700 |
| Superior Engineering Assoc 65 Cadillac Sq, Detroit 48226 | (313) 964-5751 |
| Testing Engineering & Cnsltnts 601 W Fort St, Detroit 48226 | (313) 962-4282 |
| Westin Engineering Inc 407 E Fort St 200, Detroit 48226 | (313) 742-1201 |
| Tucker Young Jackson Tull Inc 565 E Larned St 300, Detroit 48226 | (313) 963-0612 |
| Wade Trim & Assoc 500 Griswold St 2500, Detroit 48226 | (313) 961-3650 |
| Brown Dorsey Engineering 15486 Schaefer Hwy, Detroit 48227 | (313) 272-3328 |
| Innovations Engineering & Mfg 12700 Mansfield St, Detroit 48227 | (313) 653-0433 |
| Universal Engineering 14605 Schaefer Hwy, Detroit 48227 | (313) 659-1711 |
| Advanced Conculting Engnrng 16021 W Warren Ave, Detroit 48228 | (313) 945-9956 |
| Multi Tech Resources 16970 W Warren Ave, Detroit 48228 | (313) 336-8800 |
| Weston Solutions Inc 7800 W Outer Dr 200, Detroit 48235 | (313) 567-4000 |
| Dew Engineering & Development 2800 Midfield Dr, Detroit 48242 | (734) 955-2551 |