1) AMALGAMATED TRANSIT UNION, DIVISION 788

2) INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS LOCAL 1

3) IRON WORKERS LOCAL 396

4) MISSOURI FEDERATION OF TEACHERS AND SCHOOL RELATED PERSONNEL, LOCAL 6083

5) MISSOURI HOMECARE UNION

6) MISSOURI STATE BUILDING AND CONSTRUCTION TRADES COUNCIL

7) MISSOURI STATE LABOR COUNCIL, AFL-CIO

8) OPERATING ENGINEERS LOCAL 513

9) PUBLIC SCHOOL RETIREMENT SYSTEM OF THE CITY OF ST. LOUIS

10) SHEET METAL WORKERS INTERNATIONAL ASSOCIATION, AFL-CIO, LOCAL 36

11) SPRINKLER FITTERS UNION LOCAL 268

12) ST. LOUIS BUILDING AND CONSTRUCTION TRADES COUNCIL

13) UNITED ASSOCIATION OF PLUMBERS AND PIPEFITTERS LOCAL 562