| Business | Phone |
| City Garage 810 N Travis Ave, Denison 75021 | (903) 463-4460 |
| Denison Garage 810 N Travis Ave, Denison 75021 | (903) 464-4460 |
| Denison Iron Ore Sewage Plant 5702 Des Voignes Rd, Denison 75020 | (903) 465-2720 |
| Denison Paw Paw Sewage Dspsl 1320 E Sears St, Denison 75020 | (903) 464-4488 |
| Denison Randell Treatment Plnt 4631 Randell Lake Rd, Denison 75020 | (903) 464-4480 |
| Randell Treatment Plant Lab 4631 Randell Lake Rd, Denison 75020 | (903) 464-4482 |