| 881 | Journeaux Assoc. division Lab Journeaux inc. | Pointe-Claire |
| 882 | K. Smart Associates Limited | Sudbury |
| 883 | K. Smart Associates Limited | Kitchener |
| 884 | Katzer Survey Consulting | Dauphin |
| 885 | KBL Environmental | Yellowknife |
| 886 | Keller Engineering Associates Inc. | Ottawa |
| 887 | Keller Engineering Associates Inc. | Kingston |
| 888 | Kerr Wood Leidal Associates Ltd. | Burnaby |
| 889 | Kerr Wood Leidal Associates Ltd. | Nelson |
| 890 | Kerr Wood Leidal Associates Ltd. | Vernon |
| 891 | Kerr Wood Leidal Associates Ltd. | Victoria |
| 892 | Kerry T. Howe Engineering Limited | St. Catharines |
| 893 | KGS Group | Winnipeg |
| 894 | KGS Group | Mississauga, |
| 895 | KGS Group | Regina |
| 896 | KGS Group | Thunder Bay |
| 897 | KGS Group | Vancouver |
| 898 | Kiewit Engineering Group Canada ULC | Burnaby |
| 899 | KiHL Construction Management Ltd | Georgetown |
| 900 | Kirkland Engineering Ltd. | Peterborough |
