| 881 | JNE Consulting Ltd. | Livonia |
| 882 | John G. Cooke & Associates Ltd. | Hamilton |
| 883 | John G. Cooke & Associates Ltd. | Ottawa |
| 884 | Johnston-Vermette Groupe Conseil inc. | Trois-Rivières |
| 885 | JOMA Engineering Group Inc. | Dieppe |
| 886 | Journeaux Assoc. division Lab Journeaux inc. | Pointe-Claire |
| 887 | K. Smart Associates Limited | Sudbury |
| 888 | K. Smart Associates Limited | Kitchener |
| 889 | KBL Environmental | Yellowknife |
| 890 | Keller Engineering Associates Inc. | Ottawa |
| 891 | Keller Engineering Associates Inc. | Kingston |
| 892 | Kerr Wood Leidal Associates Ltd. | Burnaby |
| 893 | Kerr Wood Leidal Associates Ltd. | Nelson |
| 894 | Kerr Wood Leidal Associates Ltd. | Vernon |
| 895 | Kerr Wood Leidal Associates Ltd. | Victoria |
| 896 | Kerry T. Howe Engineering Limited | St. Catharines |
| 897 | KGS Group | Winnipeg |
| 898 | KGS Group | Mississauga, |
| 899 | KGS Group | Regina |
| 900 | KGS Group | Thunder Bay |
