BARBARA PRESTON

( Oklahoma )
Clients

1) CALDWELL AND ASSOCIATES, LLC

2) CICERO ACTION

3) CNG HOLDINGS

4) CODE.ORG

5) CORNERSTONE CREDIT UNION LEAGUE

6) DIRECTV, INC.

7) ECHOSTAR CORPORATION

8) EDF RENEWABLES DEVELOPMENT, INC.

9) GUINN AND ASSOCIATES, LLC d/b/a GUINN STRATEGIES

10) OKLAHOMA PHYSICAL THERAPY ASSOCIATION, INCORPORATED

11) OKLAHOMA PUBLIC SCHOOL RESOURCE CENTER, INC.

12) OKLAHOMA RETAIL MERCHANTS ASSOCIATION

13) OKLAHOMA STATE CHAMBER OF COMMERCE AND INDUSTRY, INC.

14) RESPONSIVE GOVERNMENT ACTION, INC.

15) SIXTEEN THIRTY FUND

16) SOUTHERN GLAZER'S WINE & SPIRITS OF OKLAHOMA

17) SPORTS BETTING ALLIANCE

18) THE PRESTON GROUP LLC

19) VERTEX PHARMACEUTICALS INCORPORATED

Last Updated: February 05, 2026