| Business | Phone |
| A & B Machining 405 W Madison, Trinity 75862 | (936) 594-0910 |
| Debbie's Little Off The Top Hwy 19, Trinity 75862 | (936) 594-6504 |
| Squeeky's Used Cars 104 S Robb, Trinity 75862 | (936) 594-1854 |
| Trinity County Adult Probation 610 S Robb St, Trinity 75862 | (936) 594-9085 |
| Trinity River Adventures 1 Walker Cor, Trinity 75862 | (936) 594-8162 |
| White Industrial Painters Farm Rd 3453, Trinity 75862 | (936) 594-3500 |
| Je Kingham Constuction Co 500 E Caroline St, Trinity 75862 | (936) 594-9911 |
| Kadco 1428 Harts Creek Rd, Trinity 75862 | (936) 594-7803 |
| Lake Area Welding 302 Cannon St, Trinity 75862 | (936) 594-5604 |
| Lamb Hwy 356, Trinity 75862 | (936) 594-3397 |