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) Bradley Lane Investment Company

11) Calpine Corporation

12) City of Amarillo

13) City of Austin

14) City of San Antonio

15) Community Associations Institute

16) Credit Union Coalition of Texas

17) Crow Holdings, L.P.

18) Cummins Inc.

19) Entergy Texas, Inc.

20) FFF Enterprises, Inc.

21) H-E-B, LP

22) Hilltop Securities Inc.

23) Hillwood Development Company, LLC

24) Holt Texas Ltd. dba HOLTCAT

25) Motion Picture Association, Inc.

26) Nasdaq, Inc.

27) NetJets Services, Inc.

28) North Texas Tollway Authority

29) Outdoor Advertising Association of Texas, Inc.

30) Quail Valley Land Company, LLC

31) Republic Property Group, Ltd.

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.

39) Windward Capital Assets LLC