| Business | Phone |
| Cinco Ranch Custom Sales Office 23103 Cinco Ranch Blvd, Katy 77494 | (281) 395-2300 |
| Cinco Ranch Information Center 23103 Cinco Ranch Blvd, Katy 77494 | (281) 395-2200 |
| Grayson Lakes 2042 Broken Branch Ct, Katy 77494 | (281) 395-5300 |
| Katy Area Economic Dev Council 2501 S Mason Rd # 230, Katy 77450 | (281) 396-2200 |
| Nimble Development 21700 Kingsland Blvd 101, Katy 77450 | (281) 829-3150 |