GTOT conducts an Investment Policy Certification Program designed to provide professional guidance in developing an investment policy, and to recognize outstanding examples of written policies. A Certificate of Distinction is awarded for policies that meet established criteria. The Certificate is awarded for two years and then may be renewed upon review. Please click here for more information about this program. The following entities have received the Certificate of Distinction since 2008. Those in bold print were certified or recertified in 2012.
| Brownsville Public Utilities Board | City of Tyler |
| City of Austin | City of Victoria |
| City of Bellaire | City of Watagua |
| City of Bryan | City of Weatherford |
| City of Cedar Park | City of West University Place |
| City of College Station | City of White Oak |
| City of Conroe | City of White Settlement |
| City of Coppell | Copperas Cove Economic Development Corporation |
| City of Dallas | CPS Energy |
| City of Denton | CPS Energy South Texas Project Decommissioning Trust |
| City of Farmersville | DFW International Airport |
| City of Georgetown | El Paso Community College District |
| City of Grand Prairie | El Paso Housing Authority |
| City of Haltom City | Floresville Electric Light and Power System |
| City of Heath | Harris County Department of Education |
| City of Killeen | Houston Community College System |
| City of La Porte | Midland Memorial Hospital |
| City of Lake Jackson | North East ISD |
| City of League City | North Texas Tollway Authority |
| City of Lubbock | River Plantation MUD |
| City of McKinney | Round Rock ISD |
| City of Pharr | South Texas College |
| City of Plano | Town of Trophy Club |
| City of Richardson | Travis County |
| City of Round Rock | University Medical Center |
| City of San Angelo | Waco ISD |
| City of San Marcos | Webb County Appraisal District |
| City of Spring Valley Village | Wichita-Wilbarger 911 District |
| City of Sugar Land |
Wills Point ISD |