1. ABM Industries Incorporated
2. Anago Cleaning Systems
3. ATALIAN Global Services Inc.
4. BONUS Building Care
5. Clean Harbors Inc.
6. CleanNet USA Inc.
7. Crest Commercial Cleaning Ltd
8. Duraclean Corporation
9. Extra Clean Inc
10. Harvard Maintenance Inc.
11. ISS Facility Services
Inc
12. Jan-Pro Systems International
13. Jani-King International Inc.
14. Kellermeyer Bergensons Services
LLC
15. Mitie Group PLC
16. Mothers Cleaning Co-Op
17. Pritchard Industries Inc.
18. Red Coats Inc.
19. ServiceMaster
20. Sodexo Group
21. Stanley Steemer International Inc.
22. Steamatic Inc.
23. Stericycle Inc.
24. Vanguard Cleaning Systems Inc.