1) 3M Company

2) American Airlines, Inc.

3) Anatole Partners III, L.L.C.

4) Arnold Capital Management, LLC

5) Association of Texas Professional Educators (ATPE)

6) AT&T

7) BEPCO, L.P.

8) BNSF Railway, a Berkshire Hathaway Corporation

9) Calpine Corporation

10) City of Amarillo

11) City of Austin

12) City of Lubbock

13) City of Waco, Texas

14) Commonwealth Fusion Systems

15) Community Associations Institute

16) Concordance

17) Credit Union Coalition of Texas

18) Crow Holdings, L.P.

19) Cummins Inc.

20) Entergy Texas, Inc.

21) Fort Worth Chamber

22) H-E-B, LP

23) Hilltop Securities Inc.

24) Hillwood Development Company, LLC

25) Holt Texas Ltd. dba HOLTCAT

26) Motion Picture Association, Inc.

27) North Texas Tollway Authority

28) Outdoor Advertising Association of Texas, Inc.

29) Quail Valley Land Company, LLC

30) Republic Property Group, Ltd.

31) TACenergy, LLC

32) Texas Beverage Association

33) Texas Instruments Incorporated

34) Texas Mutual Insurance Company

35) Texas State University System

36) The Goldman Sachs Group, Inc.

37) The Nature Conservancy

38) Uber Technologies, Inc.