| KNIGHT PAINTING CORP. | — | 777891 | — | Active | |
| KNIGHT TRANSPORTATION, INC. | — | 76817 | — | Dissolved | |
| KNIGHT'S MEATS INC. | — | 649273 | — | Dissolved | |
| KNIGHT'S OIL & GAS MANAGEMENT LIMITED | — | 71046 | — | Dissolved | |
| KNIGHT'S OIL AND GAS EXPLORATION AND COMPANY, LIMITED PARTNERSHIP-LA SOCIETE EN COMMANDITE D'EXPLORATION PETROLIERE ET GAZIERE KNIGHT'S | — | 400108 | — | Active | |
| KNIGHT'S REST | — | 311747 | — | Dissolved | |
| KNIGHT, BAIN, SEATH & HOLBROOK LIMITED | — | 72448 | — | Dissolved | |
| KNIGHT-ARCHER INSURANCE LTD. | — | 621911 | — | Dissolved | |
| KNIGHT/BALLARD CANADIAN OPERATIONS | — | 335807 | — | Dissolved | |
| KNIGHTENGUILD HOLDINGS LTD. | — | 9327 | — | Active | |
| KNIGHTS OF COLUMBUS (DALHOUSIE) HOLDING INC. | — | 9331 | — | Dissolved | |
| KNIGHTS OF COLUMBUS, COUNCIL 937, CHARITIES INC. | — | 9330 | — | Active | |
| KNIGHTS THEATRE, LIMITED | — | 93837 | — | Dissolved | |
| KNIGHTVILLE SPECIALLY WOODS | — | 309564 | — | Dissolved | |
| KNIJFF INC. | — | 513158 | — | Dissolved | |
| KNILICO INC. | — | 24629 | — | Dissolved | |
| KNIT & PURL | — | 312088 | — | Dissolved | |
| KNIT KNACKS | — | 308713 | — | Dissolved | |
| KNIT WHITS | — | 311469 | — | Dissolved | |
| KNITS AND NOTIONS (MONCTON) LTD. | — | 57119 | — | Dissolved | |
| KNITS AND NOTIONS LTD. | — | 33721 | — | Dissolved | |
| KNITTER'S ATTIC | — | 308668 | — | Dissolved | |
| KNITTER'S WORLD & CRAFTS | — | 300192 | — | Dissolved | |
| KNITWORX | — | 314171 | — | Dissolved | |
| KNJ 3W Holdings Inc. | — | 512378 | — | Active | |
| KNL ROOFING AND CONSTRUCTION | — | 744950 | — | Active | |
| KNL SCOOPS AND CONES | — | 709144 | — | Dissolved | |
| KNM - Pest Control Services Inc. | — | 675306 | — | Active | |
| KNM Services Inc. | — | 660075 | — | Dissolved | |
| KNOB HILL GALLERY INC. | — | 49411 | — | Dissolved | |
| KNOB HILL HOLDINGS INC. | — | 508992 | — | Dissolved | |
| KNOCEAN FOODS LTD. | — | 665049 | — | Active | |
| KNOCKED OUT PRODUCTIONS | — | 344891 | — | Dissolved | |
| KNOCKWOOD LOGGING INC. | — | 511013 | — | Dissolved | |
| KNOGO NORTH AMERICA INC. | — | 74952 | — | Dissolved | |
| KNOLL DISTRIBUTION, LTD. | — | 71389 | — | Merged | |
| KNOLL PHARMA INC. | — | 75149 | — | Merged | |
| KNOLL PLACE | — | 639045 | — | Dissolved | |
| KNORR INVESTMENTS LTD. | — | 9336 | — | Dissolved | |
| KNORR TRUCKING LTD. | — | 753342 | — | Pending | |
| KNORR YACHT SALES | — | 305116 | — | Dissolved | |
| KNOT AGIN FISHERIES LTD. | — | 662632 | — | Active | |
| KNOTS JIU-JITSU | — | 723644 | — | Dissolved | |
| KNOTS N NOTIONS | — | 326689 | — | Dissolved | |
| KNOTTY BY NATURE HOME IMPROVEMENTS LTD. | — | 683333 | — | Active | |
| KNOTTY PINE WOODWORKING | — | 345219 | — | Dissolved | |
| KNOW WONDER SOFTWARE DEVELOPMENT | — | 338467 | — | Dissolved | |
| KNOW YOUR FEET FOOT CARE | — | 680414 | — | Pending | |
| KNOWCHARGE INC. | — | 648153 | — | Dissolved | |
| KNOWLEDGE 3000 CORP. | — | 505539 | — | Dissolved | |
| KNOWLEDGE ATLAS CORPORATION | — | 45393 | — | Dissolved | |
| KNOWLEDGE ATLAS INC. | — | 611472 | — | Dissolved | |
| KNOWLEDGE BASED ASSOCIATION OF GREATER MONCTON INC. | — | 24705 | — | Dissolved | |
| KNOWLEDGE COUNSEL INC. | — | 604933 | — | Dissolved | |
| KNOWLEDGE DEVELOPMENT SERVICES | — | 345443 | — | Dissolved | |
| KNOWLEDGE ENTERPRISES | — | 335398 | — | Dissolved | |
| KNOWLEDGE PARK/PARC DU SAVOIR | — | 608688 | — | Active | |
| KNOWLEDGE SHARE | — | 350181 | — | Dissolved | |
| KNOWLEDGEABLE SOFTWARE DEVELOPMENT | — | 336219 | — | Dissolved | |
| KNOWLEDGEPOOL CANADA LIMITED | — | 606832 | — | Dissolved | |
| KNOWLEDGEWORKS | — | 603772 | — | Dissolved | |
| KNOWLEDGEWORKS SOLUTIONS | — | 605015 | — | Dissolved | |
| KNOWLES BROS., LIMITED | — | 9337 | — | Merged | |
| KNOWLES BROTHERS (1975) LTD. | — | 53185 | — | Merged | |
| KNOWLES BROTHERS (1975) LTD. | — | 640161 | — | Active | |
| KNOWLES BROTHERS (1975) LTD. | — | 9338 | — | Merged | |
| KNOWLES, YOUNG & CO. | — | 305117 | — | Dissolved | |
| KNOWLINKS | — | 340771 | — | Dissolved | |
| KNOWLTON & GILCHRIST, LIMITED | — | 93840 | — | Dissolved | |
| KNOWLTON LOGGING LTD. | — | 55652 | — | Merged | |
| KNOWLTON PRE-PRESS | — | 325997 | — | Dissolved | |
| KNOX AUTO SALES | — | 337335 | — | Dissolved | |
| KNOX CONTRACTING LIMITED | — | 665668 | — | Active | |
| KNOX CONTRACTING LIMITED | — | 616395 | — | Merged | |
| KNOX CONTRACTING LIMITED | — | 9340 | — | Merged | |
| KNOX INSURANCE BROKERS LTD. | — | 661979 | — | Dissolved | |
| KNOX INTERIORS INC. | — | 604730 | — | Active | |
| KNOX VICARS MCLEAN (ONTARIO) LIMITED | — | 73005 | — | Merged | |
| KNOX VICARS MCLEAN (SPECIAL RISKS) LIMITED | — | 77330 | — | Merged | |
| KNOX VICARS MCLEAN INC. | — | 72515 | — | Dissolved | |
| KNOX VICARS McLEAN (ONTARIO) | — | 353498 | — | Dissolved | |
| KNOX VICARS McLEAN (ONTARIO) LIMITED | — | 76614 | — | Merged | |
| KNOX VICARS McLEAN (SPECIAL RISKS) | — | 353476 | — | Dissolved | |
| KNOX'S LOGGING LTD | — | 607148 | — | Dissolved | |
| KNOX'S WELDING & MECHANICAL LTD. | — | 758131 | — | Active | |
| KNOXFORD COUNTRY CRAFTS | — | 311210 | — | Dissolved | |
| KNOXFORD COUNTRY PEDDELERS SHOPPE | — | 308685 | — | Dissolved | |
| KNOXFORD LODGE | — | 674916 | — | Active | |
| KNOXFORD LODGE | — | 340403 | — | Dissolved | |
| KNOXFORD PRAYING BAND CHURCH, INC. | — | 9341 | — | Active | |
| KNOXFORD TRUCK & AUTO SALVAGE | — | 310243 | — | Dissolved | |
| KNP Technologies | — | 703663 | — | Dissolved | |
| KNR HOLDINGS LTD. | — | 59992 | — | Dissolved | |
| KNR Holdings Inc. | — | 774794 | — | Active | |
| KNTECH TECHNICAL SERVICES | — | 348321 | — | Dissolved | |
| KNUCKLE DOWN STUDIOS LTD. | — | 691721 | — | Dissolved | |
| KNUDGETECH SOLUTIONS | — | 772030 | — | Active | |
| KNUDSEN ESTATES LTD. | — | 47046 | — | Dissolved | |
| KO Design Inc. | — | 683078 | — | Dissolved | |
| KO Energy Consulting Ltd. | — | 750336 | — | Active | |
| KO-KONUT | — | 323419 | — | Dissolved | |
| KOA Fitness | — | 757521 | — | Active | |
| KOAL ENTERPRISES LTD. | — | 602696 | — | Active | |
| KOALA INSULATION | — | 732468 | — | Dissolved | |
| KOALA INSULATION CANADA, ULC | — | 731865 | — | Dissolved | |
| KOB SANITATION SUPPLIES | — | 653138 | — | Dissolved | |
| KOB SANITATION SUPPLIES INC. | — | 686073 | — | Dissolved | |
| KOBEY ENTERPRISE LTD/ENTREPRISE KOBEY LTEE | — | 58412 | — | Dissolved | |
| KOBYN PROPERTIES LTD. | — | 666463 | — | Active | |
| KOCH ARCHITECTURE INC. | — | 629133 | — | Dissolved | |
| KOCH ASPHALT COMPANY | — | 314064 | — | Dissolved | |
| KOCH CONSTRUCTION SERVICES LTD. | — | 21600 | — | Dissolved | |
| KOCH CONSTRUCTION SERVICES LTD. | — | 9342 | — | Merged | |
| KOCH ENGINEERING COMPANY, LTD. | — | 74910 | — | Dissolved | |
| KOCH OIL CO. LTD. | — | 70497 | — | Dissolved | |
| KOCHFURG CONSULTING | — | 335440 | — | Dissolved | |
| KOCISKO INSURANCE BROKERS INC./KOCISKO COURTIERS D'ASSURANCE INC. | — | 612903 | — | Dissolved | |
| KOCISKO INSURANCE BROKERS INC./KOCISKO COURTIERS D'ASSURANCE INC. | — | 663950 | — | Dissolved | |
| KOCISKO INSURANCE BROKERS ONTARIO INC. / KOCISKO COURTIERS D'ASSURANCE ONTARIO INC. | — | 618034 | — | Dissolved | |
| KODAK ALARIS OPERATIONS CANADA INC. | — | 673447 | — | Active | |
| KODAK CANADA INC. | — | 17938 | — | Merged | |
| KODAK CANADA INC. | — | 644025 | — | Merged | |
| KODAK CANADA ULC | — | 661701 | — | Merged | |
| KODAK CANADA ULC | — | 682924 | — | Active | |
| KODIAC LODGE INC. | — | 93841 | — | Dissolved | |
| KODIAC PLACE INC. | — | 22146 | — | Active | |
| KODIAK CALL CENTRE LTD. | — | 509184 | — | Dissolved | |
| KODIAK HOLDINGS LTD. | — | 643264 | — | Active | |
| KODIAK INSULATION MARITIME LTD. | — | 17939 | — | Dissolved | |
| KODIAK property management & Renovations | — | 760480 | — | Active | |
| KODYME GLASS LTD. | — | 631304 | — | Dissolved | |
| KOEHRING CANADA | — | 301765 | — | Dissolved | |
| KOEHRING FINANCE CANADA | — | 301767 | — | Dissolved | |
| KOFAB ENG. | — | 623337 | — | Active | |
| KOFFEE BEAUTY INC. | — | 693694 | — | Active | |
| KOFFEE TYME LIMITED | — | 508082 | — | Dissolved | |
| KOFFLER STORES EASTERN INC./LES MAGASINS KOFFLER DE L'EST INC. | — | 17940 | — | Dissolved | |
| KOGGE FARMS | — | 305118 | — | Dissolved | |
| KOGNITIVE TECH INC. | — | 755261 | — | Active | |
| KOH-I-NOR ENTERPRISES LTD. | — | 35448 | — | Active | |
| KOHL & FRISCH LIMITED | — | 675057 | — | Merged | |
| KOHL & FRISCH LIMITED | — | 76526 | — | Merged | |
| KOHL & FRISCH LIMITED | — | 731875 | — | Active | |
| KOHL HAIR SPA | — | 610550 | — | Dissolved | |
| KOHLER INTERNATIONAL LIMITED | — | 18980 | — | Inactive | |
| KOHLER'S CONSTRUCTION | — | 315462 | — | Dissolved | |
| KOHLER'S PROPERTY SERVICES LTD. | — | 504244 | — | Dissolved | |
| KOHO FINANCIAL INC. | — | 717251 | — | Active | |
| KOHOCUSTOM | — | 742530 | — | Active | |
| KOHS COMPUTER CONSULTANTS | — | 334440 | — | Dissolved | |
| KOI ESL LEARNING | — | 715522 | — | Dissolved | |
| KOIF-ELLE ET LUI | — | 327717 | — | Dissolved | |
| KOIFFE-TEK ENRG. | — | 319059 | — | Dissolved | |
| KOIKE COIFFURES LTEE. | — | 9343 | — | Dissolved | |
| KOJAX'S FOOD SERVICES INC. | — | 635850 | — | Merged | |
| KOK CAMPGROUND | — | 325356 | — | Dissolved | |
| KOK Campground | — | 655484 | — | Active | |
| KOKO (CHAMPLAIN) LTD. | — | 93842 | — | Dissolved | |
| KOKO (MONCTON) LTD. | — | 93843 | — | Dissolved | |
| KOKO CABARET LTEE | — | 9344 | — | Dissolved | |
| KOLBICO DIVERSIFIED INC. | — | 36580 | — | Dissolved | |
| KOLD-X-KLUNDER | — | 305119 | — | Dissolved | |
| KOLECTAL AGENCY LTD. - AGENCE KOLECTAL LTEE | — | 9345 | — | Dissolved | |
| KOLECTAL-INFO LTD. KOLECTAL-INFO LTEE | — | 9346 | — | Dissolved | |
| KOM Family Holdings Inc. | — | 762238 | — | Active | |
| KOMA INC. | — | 513432 | — | Active | |
| KOMATSU INTERNATIONAL (CANADA) INC. | — | 72301 | — | Active | |
| KOMFORT KING FUELS LTD. | — | 9347 | — | Merged | |
| KOMFORT KING FUELS LTD. | — | 751179 | — | Active | |
| KOMFORT KITTY EXPRESS | — | 719009 | — | Dissolved | |
| KOMO SPORTS | — | 318998 | — | Dissolved | |
| KOMO SPORTS INC. | — | 36121 | — | Dissolved | |
| KOMPUTER ADAPTED TECHNOLOGY SERVICES (KATS) | — | 347184 | — | Dissolved | |
| KOMSA Sàrl | — | 734978 | — | Active | |
| KOMTEK SERVICES | — | 338323 | — | Dissolved | |
| KOMTEK SERVICES INC. | — | 504390 | — | Active | |
| KON-KRETE LTD. | — | 9349 | — | Dissolved | |
| KONALL LTD. | — | 651791 | — | Dissolved | |
| KONCZ ENTERPRISES LTD. | — | 47199 | — | Merged | |
| KONCZ ENTERPRISES LTD. | — | 651900 | — | Active | |
| KONDO DEVELOPMENTS LTD. | — | 34172 | — | Dissolved | |
| KONE INC. | — | 637160 | — | Merged | |
| KONE INC. | — | 693685 | — | Active | |
| KONE Services et Livraison | — | 778348 | — | Active | |
| KONECKT DEVELOPMENT | — | 708261 | — | Dissolved | |
| KONFER LTD. | — | 9348 | — | Dissolved | |
| KONICA BUSINESS TECHNOLOGIES CANADA INC. TECHNOLOGIES D'AFFAIRES KONICA CANADA INC. | — | 74516 | — | Dissolved | |
| KONICA MINOLTA BUSINESS SOLUTIONS (CANADA) LTD./ SOLUTIONS D'AFFAIRES KONICA MINOLTA (CANADA) LTEE | — | 667148 | — | Merged | |
| KONICA MINOLTA BUSINESS SOLUTIONS (CANADA) LTD./ SOLUTIONS D'AFFAIRES KONICA MINOLTA (CANADA) LTEE. | — | 689346 | — | Active | |
| KONKWEST LTD. | — | 9350 | — | Dissolved | |
| KONNING HOLDINGS INC. | — | 718247 | — | Active | |
| KONQUIP SALES | — | 305120 | — | Dissolved | |
| KONSALCAN Inc. | — | 670020 | — | Pending | |
| KONTENT FOODS INC. | — | 41759 | — | Dissolved | |
| KONTROL AUTOMATION & COMPUTER SERVICES LTD. | — | 506579 | — | Active | |
| KONTROL QUALITY AUTOMATION SERVICES | — | 332709 | — | Dissolved | |
| KOOIKER TRANSPORT LTD. | — | 734625 | — | Active | |
| KOOKIE KUTTER | — | 321820 | — | Dissolved | |
| KOOKIE KUTTER | — | 328590 | — | Dissolved | |
| KOOL AIR CONDITIONING & REFRIGERATION LTD. | — | 512771 | — | Dissolved | |