| Business | Phone |
| Andrew Abarr Pe Po Box 22084, Oklahoma City 73123 | (405) 787-9292 |
| 050 Engineering Co 228 Robert S Kerr Ave # 515, Oklahoma City 73102 | (405) 236-2030 |
| All About Staffing 2601 Nw Expressway St, Oklahoma City 73112 | (405) 842-1500 |
| Allen Engineering Svc 7925 N Hudson Ave # B, Oklahoma City 73114 | (405) 840-9901 |
| Ivan D Allred Jr 6801 Broadway Ext # 101, Oklahoma City 73116 | (405) 840-8286 |
| Arinc Inc 6400 Se 59th St, Oklahoma City 73135 | (405) 739-0939 |
| Benton Engineering Co 9400 Broadway Ext # 600, Oklahoma City 73114 | (405) 942-4189 |
| Biomass Energy 5200 Se 59th St, Oklahoma City 73135 | (405) 670-8548 |
| Bki Construction Estimating 3919 Nw 10th St, Oklahoma City 73107 | (405) 943-2078 |
| Bower Engineering Inc 1330 N Classen Blvd # 114, Oklahoma City 73106 | (405) 232-5446 |
| Brawley Engineering Corp 6900 N Classen Blvd, Oklahoma City 73116 | (405) 848-5578 |
| Brown & Mac Lin Inc 1301 N Martin Luther King Ave, Oklahoma City 73117 | (405) 424-2442 |
| Richard A Brown Pe 9414 Westgate Rd, Oklahoma City 73162 | (405) 773-0100 |
| C H2m Hill 25 S Oklahoma Ave, Oklahoma City 73104 | (405) 231-5197 |
| Carter & Burgess Inc 10001 Broadway Ext, Oklahoma City 73114 | (405) 810-8254 |
| Chiang Patel & Yerby Inc 6501 Broadway Ext, Oklahoma City 73116 | (405) 848-2346 |
| Cobb Engineering 4516 Nw 36th St, Oklahoma City 73122 | (405) 415-9400 |
| Davenport Associates Inc 4200 Perimeter Center Dr # 220, Oklahoma City 73112 | (405) 789-1000 |
| De Castro Engineering 4024 Nw 62nd St, Oklahoma City 73112 | (405) 917-9100 |
| Design Drafting Inc 2245 N Air Depot Blvd, Oklahoma City 73141 | (405) 424-3880 |
| Design Engineers Inc 1614 Greenbriar Pl, Oklahoma City 73159 | (405) 691-6333 |
| Determan-Scheirman Inc 2305 N Meridian Ave, Oklahoma City 73107 | (405) 947-6626 |
| Donald J Bass & Assoc Inc 124 Nw 10th St, Oklahoma City 73103 | (405) 235-7923 |
| E E Systems Engineering 3124 Oak Hollow Rd, Oklahoma City 73120 | (405) 752-9547 |
| Edinger Engineering Inc 105 N Hudson Ave # 510, Oklahoma City 73102 | (405) 232-6315 |
| Fhc Inc 205 Nw 63rd St # 305, Oklahoma City 73116 | (405) 843-1511 |
| Fpm Group Inc 806 W Curtis Dr, Oklahoma City 73110 | (405) 869-9212 |
| Frankfurt-Short-Bruza-Assoc 5801 Broadway Ext # 500, Oklahoma City 73118 | (405) 840-2931 |
| General Atomics 4600 Se 29th St, Oklahoma City 73115 | (405) 670-9028 |
| Glen R Boyd Engineering Po Box 18528, Oklahoma City 73154 | (405) 848-3335 |
| Grossman & Keith Engineering 10408 Greenbriar Pl, Oklahoma City 73159 | (405) 691-3213 |
| Wynne Engineering Corp 1236 Sw 89th St # A, Oklahoma City 73139 | (405) 691-8080 |
| Gw2 Engineering Inc 221 W Wilshire Blvd # A, Oklahoma City 73116 | (405) 842-7027 |
| Harry Rountree Engineer Inc 3132 Nw 50th St, Oklahoma City 73112 | (405) 949-1696 |
| Hebco Inc 1601 Se 66th St, Oklahoma City 73149 | (405) 672-1461 |
| High Plains Technical Svc 7201 N Classen Blvd # 201, Oklahoma City 73116 | (405) 608-0810 |
| Hinkle Engineering 5600 N May Ave # 295, Oklahoma City 73112 | (405) 848-0924 |
| Howell-Summers-Boyd Engnrng 4101 N Classen Blvd # D, Oklahoma City 73118 | (405) 525-9030 |
| Industrial Engineering Svc 800 N Peniel St, Oklahoma City 73127 | (405) 787-8222 |
| Innovative Products Inc 4300 Highline Blvd, Oklahoma City 73108 | (405) 949-0040 |
| Albert N Janco 801 Nw 49th St, Oklahoma City 73118 | (405) 848-1991 |
| Jgve Inc 124 Nw 10th St # 101, Oklahoma City 73103 | (405) 236-8313 |
| Johnson & Assoc Inc 100 E California Ave # 3, Oklahoma City 73104 | (405) 235-8075 |
| Kirkpatrick Curtis Pc 205 Nw 63rd St # 390, Oklahoma City 73116 | (405) 528-4596 |
| Land Services Inc 2310 Sw 89th St, Oklahoma City 73159 | (405) 691-0550 |
| Larkin Engineering Co 7023 Se 15th St # D, Oklahoma City 73110 | (405) 737-3181 |
| Legacy Engineering Inc 1 Nw 64th St, Oklahoma City 73116 | (405) 840-0995 |
| Long Wave Inc 115 E California Ave # 400, Oklahoma City 73104 | (405) 253-2217 |
| M E 31 Consulting Engineers 4432 Nw 47th St, Oklahoma City 73112 | (405) 942-8012 |
| Mac Arthur Associated Consultants 3033 Nw 63rd St # 250e, Oklahoma City 73116 | (405) 848-2471 |
| Mc Minimy & Assoc 4334 N Meridian Ave, Oklahoma City 73112 | (405) 946-5100 |
| Midstate Engineering Po Box 890501, Oklahoma City 73189 | (405) 692-2550 |
| Mitchell Group 8001 Mid America Blvd, Oklahoma City 73135 | (405) 610-2620 |
| Modern Technologies Corp 4600 Se 29th St # 704, Oklahoma City 73115 | (405) 619-0900 |
| Mtf Engineering Inc 2812 Nw 57th St # 104, Oklahoma City 73112 | (405) 879-0348 |
| Myers Engineering Inc 116 Nw 132nd St, Oklahoma City 73114 | (405) 755-5325 |
| Newville Engineering Inc 200 N Harvey Ave # 507, Oklahoma City 73102 | (405) 236-4357 |
| Painter Consulting Engineers Oklahoma City 73112 | (405) 488-0714 |
| Pce 516 W California Ave, Oklahoma City 73102 | (405) 488-0714 |
| Pinnacle Energy Svc 6 Ne 63rd St, Oklahoma City 73105 | (405) 810-9151 |
| Poe & Assoc Inc 525 Central Park Dr # 250, Oklahoma City 73105 | (405) 949-1962 |
| Porter Engineering Assoc 8104 Nw 122nd St, Oklahoma City 73142 | (405) 728-2525 |
| Psa Consulting Engineers 3031 Nw 64th St # 101, Oklahoma City 73116 | (405) 840-1901 |
| R H Osborne Engineering 4101 Nw 144th St, Oklahoma City 73134 | (405) 751-4590 |
| Ray Engineering 1607 Nw 9th St, Oklahoma City 73106 | (405) 236-2308 |
| Zia Corp 6600 S Council Rd, Oklahoma City 73169 | (405) 745-3813 |
| Zrhd 3545 Nw 58th St # 200, Oklahoma City 73112 | (405) 942-8475 |
| Wallace Engineering Structural 134 Nw 13th St, Oklahoma City 73103 | (405) 236-5858 |
| Wdb Engineering Pllc 6330 Se 74th St, Oklahoma City 73135 | (405) 741-7090 |
| White Engineering Assoc Inc 4000 N Classen Blvd # 100s, Oklahoma City 73118 | (405) 528-4074 |
| W E Goad Engineering 100 Park Ave # 600, Oklahoma City 73102 | (405) 235-1696 |
| Triad Design Group 14313 N May Ave, Oklahoma City 73134 | (405) 752-1122 |
| Trumble Dean 429 W Wilshire Blvd # B, Oklahoma City 73116 | (405) 848-9202 |
| Turner-Hill & Assoc Inc 2117 Nw 62nd St, Oklahoma City 73112 | (405) 848-2243 |
| Ulmer Engineering & Svc Co 7504 Nw 103rd St, Oklahoma City 73162 | (405) 722-3371 |
| Todd Engineering Inc 1505 Sw 104th St, Oklahoma City 73159 | (405) 691-1626 |
| Summa Engineering Inc 200 N Harvey Ave # 1415, Oklahoma City 73102 | (405) 232-8338 |
| Stantest 4300 N Lincoln Blvd, Oklahoma City 73105 | (405) 424-8379 |
| Structural Engineering Group 15 N Robinson Ave, Oklahoma City 73102 | (405) 604-6979 |
| Soter Engineering Inc 3031 Nw 64th St, Oklahoma City 73116 | (405) 843-1531 |
| Spear & Mc Caleb Co 815 W Main St, Oklahoma City 73106 | (405) 232-7715 |
| Smith Roberts Baldischwiler 100 Ne 5th St, Oklahoma City 73104 | (405) 840-7094 |
| Sequoyah Engineering Inc 7115 N Bryant Ave, Oklahoma City 73121 | (405) 478-3582 |
| Ross Relph Asm Co 722 N Broadway Ave # 302, Oklahoma City 73102 | (405) 236-3011 |
| Regulus Group 1217 Sovereign Row, Oklahoma City 73108 | (405) 602-8914 |