| Business | Phone |
| Meta Engineering Renton 98055 | (425) 226-1539 |
| Novadyne Engineering Pllc Renton 98055 | (425) 254-1121 |
| Resco Inc Renton 98055 | (425) 228-4244 |
| Loscheider Engineering Co Po Box 2440, Renton 98056 | (425) 255-0126 |
| Mc Michael Consulting 4005 Park Ave N, Renton 98056 | (425) 228-3286 |
| Light Tech 715 S 3rd St, Renton 98057 | (425) 793-5491 |
| Messier-Dowty 2201 Lind Ave Sw, Renton 98057 | (253) 867-5555 |
| Pacific Engineering Design 4180 Lind Ave Sw, Renton 98057 | (425) 251-8811 |
| Paradigm Technologies Inc 660 Sw 39th St 215, Renton 98057 | (425) 251-8181 |
| Parsons Corp 2201 Lind Ave Sw 100, Renton 98057 | (425) 917-7301 |
| Process Engineering Inc 15107 Se 145th Pl, Renton 98059 | (425) 235-5190 |
| Siemens Westinghouse 405 Sw 41st St, Renton 98057 | (425) 656-4380 |
| T E Inc 830 N Riverside Dr 200, Renton 98057 | (206) 241-2012 |
| Team Engineering Inc 830 N Riverside Dr, Renton 98057 | (425) 917-2395 |
| Vykor Inc 200 Mill Ave S, Renton 98057 | (425) 264-2600 |
| Wieland Lindgren Engineers 800 Sw 16th St 100, Renton 98057 | (425) 254-0211 |