| Bee-clean CO (brandon) LTD | 102 | $15,769,615 | 1 | |
| Tato Recruiting Inc. and S.i. Systems ULC in Joint Venture | 4 | $15,260,511 | 1 | |
| Reliable Window Cleaners (sudbury) Limited | 16 | $15,205,724 | 3 | ✓ |
| 520571 Ontario Ltd. | 18 | $15,168,097 | 1 | ✓ |
| 4089171 Canada Inc. | 35 | $15,126,088 | 3 | ✓ |
| Dust-moon Maintenance Limited | 18 | $15,039,197 | 2 | ✓ |
| M.p. Building Cleaning Services | 19 | $14,489,620 | 2 | ✓ |
| Derko LTEE | 24 | $14,384,391 | 3 | |
| Randstad Interim Inc | 74 | $14,379,396 | 6 | |
| 3388646 Canada INC | 32 | $14,046,846 | 3 | |
| Maclean Construction Ltd | 37 | $13,814,442 | 4 | |
| Atelier DU Martin-pecheur Inc. | 46 | $13,609,891 | 2 | |
| Titan Building Maintenance LTD | 19 | $13,392,480 | 3 | |
| Bolana Capitol Enterprises Inc. | 8 | $13,156,963 | 1 | |
| Maintenance Eureka LTEE | 18 | $13,040,336 | 2 | |
| Bee Clean | 59 | $12,877,420 | 4 | |
| Scollard Maintenance Ltd. | 26 | $12,600,626 | 2 | |
| Wabush Janitorial Services Ltd. | 8 | $12,285,370 | 1 | |
| Sunlite Floor Cleaners And Koprash Facilities Services | 14 | $12,240,957 | 1 | |
| ALTIS Recruitment | 76 | $11,239,496 | 6 | |
| Bee-clean | 47 | $10,912,551 | 7 | ✓ |
| D & J's Cleaning Services LTD | 15 | $10,591,199 | 1 | |
| Michael Wager Consulting | 12 | $10,100,999 | 4 | |
| BGIS Global Solutions LTD | 3 | $9,991,459 | 1 | ✓ |
| Impact Cleaning Services LTD | 6 | $9,893,980 | 3 | ✓ |
| Honeywell Limitee (sainte-foy) | 2 | $9,872,755 | 1 | |
| Commercial Building Services | 7 | $9,870,000 | 1 | |
| Procom Consultants Group | 14 | $9,595,355 | 4 | |
| Corbel Management Corporation | 5 | $9,584,484 | 1 | |
| 2553164 Ontario Inc | 6 | $8,906,465 | 2 | |
| Artemp Personnel Services | 82 | $8,642,523 | 25 | |
| Capital Janitorial | 11 | $8,345,824 | 1 | |
| AAF LA Providence | 10 | $8,169,320 | 1 | |
| Kleenway Building Maintenance | 4 | $7,911,737 | 3 | ✓ |
| Dexterra Integrated Facilities | 8 | $7,890,007 | 1 | ✓ |
| P & R Enterprises, Inc | 13 | $7,878,172 | 1 | |
| Aramark Canada Ltd. | 17 | $7,845,625 | 2 | ✓ |
| GALI Service Industries, Inc. | 6 | $7,788,932 | 1 | |
| ISS Facility Services Limited, | 24 | $7,704,629 | 1 | |
| La Veneta Servizi | 11 | $7,679,427 | 1 | |
| Altis Human Resources | 75 | $7,651,257 | 20 | |
| Burns Landscape Maintenance INC | 13 | $7,596,213 | 1 | |
| Skyblue Services CORP | 43 | $7,507,656 | 3 | ✓ |
| Electro Saudi Services Ltd. | 30 | $7,439,185 | 1 | |
| Altis Professional Recruitment | 53 | $7,330,252 | 5 | |
| Commercial Building Cleaners - 3388646 Canada Inc. | 3 | $7,311,486 | 1 | |
| Shamrock Building Services Ltd | 71 | $7,121,650 | 1 | |
| SMS Modern Cleaning Services Inc | 36 | $7,091,282 | 1 | |
| ATCO Structure & Logistics Services Ltd. | 2 | $6,993,878 | 1 | |
| Black & Mcdonald Limited (scarborough) | 2 | $6,957,997 | 1 | |