| Business | Phone |
| A & M Engineering & Envrnmntl 10010 E 16th St, Tulsa 74128 | (918) 665-6575 |
| Cinnabar Environmental Svc 5121 S Wheeling Ave, Tulsa 74105 | (918) 742-0082 |
| Edge Environmental Engineering 6733 E 106th Pl # 2, Tulsa 74133 | (918) 496-3343 |
| Enercon Services Inc 5100 E Skelly Dr # 450, Tulsa 74135 | (918) 665-7693 |
| Rfs Consulting Inc 10830 E 45th St # 202, Tulsa 74146 | (918) 663-9850 |