| Name | Role | Phone Number |
| Allen Boone Humphries Robinson LLP | Attorney | (713) 860-6400 |
| Tax Tech, Inc. | Tax Collector | (281) 499-1223 |
| First Southwest Company, Houston | Financial Advisor | (713) 651-9850 |
| AECOM | Engineering | (713) 267-2960 |
| Southwest Water Company | District Operator | (281) 209-5072 |
| McLennan & Associates, LP. | District Bookkeeper | (281) 920-4000 |