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) 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) NASDAQ, INC.

28) NETJETS SERVICES, INC.

29) NORTH TEXAS TOLLWAY AUTHORITY

30) OUTDOOR ADVERTISING ASSOCIATION OF TEXAS, INC.

31) QUAIL VALLEY LAND COMPANY, LLC

32) REPUBLIC PROPERTY GROUP, LTD.

33) TEXAS BEVERAGE ASSOCIATION

34) TEXAS CAMPAIGN FOR MOTHERS

35) TEXAS INSTRUMENTS INCORPORATED

36) TEXAS MUTUAL INSURANCE COMPANY

37) TEXAS STATE UNIVERSITY SYSTEM

38) THE GOLDMAN SACHS GROUP, INC.

39) THE NATURE CONSERVANCY

40) UBER TECHNOLOGIES, INC.