| Business | Phone |
| 4 M Svc Inc 1315 Wildcat Dr # A, Portland 78374 | (361) 643-9618 |
| 4-M Services Inc 912 Dallas St, Portland 78374 | (361) 643-9618 |
| Automated Technical Svc Inc 1513 Denver St, Portland 78374 | (361) 643-3654 |
| South Texas Splicing & Spool 2304 Park Wood Dr, Portland 78374 | (361) 643-1221 |