1) 3M Company and its affiliates

2) Acadia Healthcare

3) Adventureland Amusement Park

4) Alliance for Civic Education of Iowa

5) Alliant Energy Corporation

6) Annett Holdings

7) Apple Inc.

8) Association of Dental Support Organizations

9) AT & T

10) CHILDSERVE

11) Community Bankers of Iowa

12) Connected Nation Development Corp.

13) CRST International

14) Doll Distributing

15) Elevator Industry Work Preservation Fund

16) Eli Lilly & Co.

17) Energy Transfer

18) FedEx Corporation

19) Four Oaks

20) Fresenius Medical Care

21) Horsemen's Benevolent and Protective Association (IHBPA)

22) Insight Public Sector

23) Iowa Advocates for Choice in Education

24) Iowa American Water Co.

25) Iowa Cannabis Company

26) Iowa Great Lakes Association

27) Iowa Insurance Institute

28) Iowa Judges Association

29) Iowa Northern Railway Company

30) Iowa Speedway, LLC

31) Iowa State Patrol Supervisors Association

32) Iowa Student Loan Liquidity Corp.

33) Iowa Thoroughbred Breeders and Owners Association

34) Kent Corporation

35) Koloma

36) Liberty Tire Services of Ohio, LLC

37) MCNA

38) MercyOne

39) National Association of Insurance and Financial Advisors-Iowa

40) Pharmaceutical Research and Manufacturers of America (PhRMA)

41) Pivot Bio

42) Safelite Group, Inc.

43) SAS Institute Inc.

44) Secure Elections Project

45) SOO Green HVDC Link ProjectCo, LLC

46) Summit Carbon Solutions

47) Summit Group

48) Weitz Company

49) Western Governors University

50) Wild Rose Entertainment, LLC