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) Baylor Scott & White Health

8) BEPCO, L.P.

9) BNSF Railway, a Berkshire Hathaway Corporation

10) Calpine Corporation

11) City of Amarillo

12) City of Austin

13) Community Associations Institute

14) Credit Union Coalition of Texas

15) Crow Holdings, L.P.

16) Cummins Inc.

17) Entergy Texas, Inc.

18) H-E-B, LP

19) Hilltop Securities Inc.

20) Hillwood Development Company, LLC

21) Holt Texas Ltd. dba HOLTCAT

22) Honey Creek Land Company, LLC

23) Lower Colorado River Authority

24) Motion Picture Association, Inc.

25) Nasdaq, Inc.

26) NetJets Services, Inc.

27) North Texas Tollway Authority

28) Outdoor Advertising Association of Texas, Inc.

29) Penske Truck Leasing Co., L.P.

30) Republic Property Group, Ltd.

31) Texas Beverage Association

32) Texas Instruments Incorporated

33) Texas Mutual Insurance Company

34) Texas State University System

35) The Goldman Sachs Group, Inc.

36) The Nature Conservancy

37) Uber Technologies, Inc.

38) Windward Capital Assets LLC