1) AMERICA'S HEALTH INSURANCE PLANS

2) AMERICAN BENEFITS COUNCIL

3) Broker/Dealer Coordination Group

4) COLLEGE SAVINGS FOUNDATION

5) COMMITTEE OF ANNUITY INSURERS

6) EDWARD JONES INVESTMENTS

7) FMR LLC

8) Housing Advisory Group

9) Hueler Investment Services, Inc.

10) ICMA Retirement Corporation

11) Insperity

12) LINCOLN FINANCIAL GROUP

13) LOUISIANA WORKERS' COMPENSATION CORP

14) LPL Financial

15) MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY

16) Millennium Trust Company

17) NATIONAL ASSN OF PROFESSIONAL EMPLOYER ORGANIZATIONS

18) NATIONAL RURAL ELECTRIC COOPERATIVE ASSN

19) NATIONWIDE INSURANCE COMPANIES

20) Prudential Financial

21) Retirement Industry Trust Association

22) SMART USA Co.

23) State Street Bank and Trust Co.

24) The SPARK Institute

25) TIAA

26) Transamerica Life Insurance Company

27) VANGUARD GROUP

28) Willis North America, Inc.