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) Motion Picture Association, Inc.

24) Nasdaq, Inc.

25) NetJets Services, Inc.

26) North Texas Tollway Authority

27) Outdoor Advertising Association of Texas, Inc.

28) Penske Truck Leasing Co., L.P.

29) Republic Property Group, Ltd.

30) Texas Beverage Association

31) Texas Instruments Incorporated

32) Texas Mutual Insurance Company

33) Texas State University System

34) The Goldman Sachs Group, Inc.

35) The Nature Conservancy

36) Uber Technologies, Inc.

37) Windward Capital Assets LLC