| DYNEGY POWER | — | 345515 | — | Dissolved | |
| DYNEX LTD. | — | 5376 | — | Dissolved | |
| DYNEX MANUFACTURING LTD. | — | 584 | — | Merged | |
| DYNEX MFG LTD. | — | 635704 | — | Dissolved | |
| DYNICOM SOLUTIONS | — | 349605 | — | Dissolved | |
| DYNO NOBEL CANADA INC. | — | 629887 | — | Merged | |
| DYNO NOBEL CANADA INC. | — | 613462 | — | Merged | |
| DYNO NOBEL LTD./DYNO NOBEL LTEE | — | 74408 | — | Merged | |
| DYNO NOBEL LTD./DYNO NOBEL LTEE | — | 76822 | — | Merged | |
| DYNOPLAST | — | 333049 | — | Dissolved | |
| DYNOPLAST LTD. | — | 72885 | — | Merged | |
| DYNOPTICS INC. | — | 44471 | — | Dissolved | |
| DYP EAU WATER INC. | — | 55642 | — | Dissolved | |
| DYP HOLDINGS INC. | — | 36108 | — | Dissolved | |
| DYSART'S TRANSPORTATION, INC. | — | 71916 | — | Active | |
| DYSON MELISSA INVESTMENTS INC. | — | 740657 | — | Active | |
| DYSTAR | — | 337298 | — | Dissolved | |
| DYSTAR | — | 615108 | — | Dissolved | |
| DYTEX RESOURCE INVESTMENTS LTD. | — | 509383 | — | Merged | |
| DYV IT CONSULTING | — | 711924 | — | Dissolved | |
| DYV IT Corporation | — | 733935 | — | Dissolved | |
| DYWIDAG SYSTEMS INTERNATIONAL CANADA LTD. | — | 19046 | — | Dissolved | |
| DZ LOGISTICS LTD. | — | 744393 | — | Active | |
| DZ Nadeau Foresterie Inc. | — | 747450 | — | Active | |
| DZL - CANADA DIESEL | — | 687238 | — | Dissolved | |
| DZS Enterprises Canada, Inc. | — | 683658 | — | Active | |
| Da Holding Company Ltd. | — | 608714 | — | Active | |
| Da Pub | — | 350258 | — | Dissolved | |
| Da Tang Language Center | — | 600367 | — | Dissolved | |
| Da Trappers Shack | — | 746223 | — | Active | |
| Da-Leap Transport Enterprises | — | 750302 | — | Active | |
| DaCapo Holdings Inc. | — | 739986 | — | Active | |
| DaGa Docks | — | 655344 | — | Dissolved | |
| DaHka Holdings Inc. | — | 628917 | — | Active | |
| DaMire Sale & Distribution | — | 627838 | — | Dissolved | |
| DaaMar Automotive | — | 671414 | — | Dissolved | |
| Daamen's Heat Pump Services | — | 711968 | — | Dissolved | |
| Dab Design | — | 671205 | — | Dissolved | |
| Dabaglue Wood Crafts | — | 769364 | — | Active | |
| Dabble in Whimsy - Upcycled Furniture and Artisan Crafts | — | 723009 | — | Pending | |
| Dabe MT Investments LP | — | 722084 | — | Active | |
| Dabest IT Consulting | — | 629769 | — | Dissolved | |
| Dabz B Us Clothing | — | 703059 | — | Dissolved | |
| Daca Graphix Services | — | 351977 | — | Dissolved | |
| Daca Graphix Services | — | 654325 | — | Dissolved | |
| Daccord Media | — | 726420 | — | Pending | |
| Dack Holdings (2006) Inc. | — | 625150 | — | Dissolved | |
| Dack Holdings Inc. | — | 508366 | — | Dissolved | |
| Dack's Shoes Limited | — | 3675 | — | Withdrawn | |
| Daco Inc. | — | 510242 | — | Dissolved | |
| Dacon Energy Systems Inc. | — | 626857 | — | Dissolved | |
| Dad Bod Property Maintenance Inc. | — | 726376 | — | Active | |
| Dad Force Supply Co Inc. | — | 719682 | — | Dissolved | |
| Dad Recreation | — | 630730 | — | Dissolved | |
| Dad Space Online | — | 717085 | — | Dissolved | |
| Dad's Auto Detailing | — | 701609 | — | Dissolved | |
| Dad's Classic Enterprises Ltd. | — | 610006 | — | Dissolved | |
| Dad's Cookies Co. - Biscuiterie Dad | — | 666247 | — | Active | |
| Dad's Delivery Service | — | 627162 | — | Dissolved | |
| Dad's Rénovations Reg'd | — | 645699 | — | Dissolved | |
| Daddy Daughter Workshop | — | 762620 | — | Active | |
| Daddy's Pizza Bar Sportif | — | 627780 | — | Dissolved | |
| Dads Marine & RV INC. | — | 701272 | — | Active | |
| Daedelle | — | 633948 | — | Dissolved | |
| Daeka Care Facilities | — | 689977 | — | Dissolved | |
| Daeka Care Facilities Inc. | — | 700065 | — | Active | |
| Daeres Property Management Ltd. | — | 681419 | — | Active | |
| Daffodils Limited Partnership | — | 764184 | — | Active | |
| Dafoe Design | — | 720765 | — | Pending | |
| Dahab Auto Sales Inc. | — | 754976 | — | Active | |
| Dahlia Ave. Productions | — | 768112 | — | Active | |
| Dahlias Hair Design | — | 685028 | — | Dissolved | |
| Dahlman Rose & Company | — | 658242 | — | Dissolved | |
| Dahlman Rose & Company Canada, Inc. | — | 655155 | — | Dissolved | |
| Dai Lam Trading | — | 697184 | — | Active | |
| Dai-Mac Enterprises Ltd. | — | 4716 | — | Merged | |
| Daigle Aquaculture Inc. | — | 687101 | — | Active | |
| Daigle Atlantic Transport Inc. | — | 625623 | — | Dissolved | |
| Daigle Curbing and Edging | — | 613875 | — | Dissolved | |
| Daigle Custom Flooring | — | 728191 | — | Active | |
| Daigle Electric Ltd. | — | 600125 | — | Dissolved | |
| Daigle Excavation & Gravel | — | 663167 | — | Active | |
| Daigle Heating & Consulting Inc. | — | 516212 | — | Dissolved | |
| Daigle Insurance | — | 728340 | — | Active | |
| Daigle Photo Restoration & Retouching | — | 625259 | — | Dissolved | |
| Daigle Racer Challenge | — | 348783 | — | Dissolved | |
| Daigle Realty Inc. | — | 703712 | — | Active | |
| Daigle Renovations | — | 618691 | — | Dissolved | |
| Daigle et Associé(e)s | — | 643244 | — | Dissolved | |
| Daigle et Associé(e)s | — | 708869 | — | Active | |
| Daigle's Custom Concrete Edging | — | 652652 | — | Dissolved | |
| Daigle's Excavation & Gravel Inc. | — | 645649 | — | Dissolved | |
| Daigle's Overload | — | 644538 | — | Dissolved | |
| Daigle's Plumbing | — | 755789 | — | Active | |
| Daigneault Photographie | — | 665795 | — | Dissolved | |
| Dailivio Online store Ltd. | — | 767508 | — | Dissolved | |
| Daily Adventure Day Care | — | 637256 | — | Dissolved | |
| Daily Chores | — | 619702 | — | Dissolved | |
| Daily Dose Coffee & Tea House | — | 706702 | — | Dissolved | |
| Daily Elephant Studios | — | 770903 | — | Active | |
| Daily Espresso Inc. | — | 743547 | — | Active | |
| Daily Save Store | — | 770323 | — | Active | |
| Daily Task Solutions Inc | — | 769008 | — | Active | |
| Daimler Truck Canada Ltd. Camion Daimler Canada Ltée | — | 690834 | — | Active | |
| Daimler Truck Financial | — | 726206 | — | Active | |
| Daimler Trucks Canada Ltd. Camions Daimler Canada Ltée | — | 654824 | — | Merged | |
| DaimlerChrysler Canada | — | 347348 | — | Dissolved | |
| DaimlerChrysler Capital Services (debis) Canada/Services DaimlerChrysler Capital (debis) Canada | — | 349694 | — | Dissolved | |
| DaimlerChrysler Financial Services/Services financiers DaimlerChrysler | — | 349698 | — | Dissolved | |
| DaimlerChrysler Services in Canada / Services DaimlerChrysler au Canada | — | 614653 | — | Dissolved | |
| DaimlerChrysler Truck Financial / Services financiers - Camions DaimlerChrysler | — | 621828 | — | Dissolved | |
| DaimlerChrysler Truck Financial/Services financiers - Camions DaimlerChrysler | — | 633293 | — | Inactive | |
| Dainty By Design Jewellery | — | 744253 | — | Active | |
| Dairy Bar du Coin | — | 676473 | — | Dissolved | |
| Dairy Bar du Coin | — | 671004 | — | Dissolved | |
| Dairy Corner Limited Partnership | — | 751114 | — | Active | |
| Dairy Creek Farm | — | 664441 | — | Dissolved | |
| Dairy Farmers of Canada Les Producteurs Laitiers du Canada | — | 609264 | — | Active | |
| Dairy Town Taxi | — | 600859 | — | Dissolved | |
| DairyTown Cleaning | — | 346491 | — | Dissolved | |
| DairyTown Yard Service | — | 716457 | — | Dissolved | |
| Dairytown | — | 677320 | — | Active | |
| Dairytown Exteriors | — | 653622 | — | Dissolved | |
| Dairytown Exteriors Inc. | — | 661205 | — | Active | |
| Dairytown Insurance | — | 752543 | — | Active | |
| Dairytown Processing | — | 677319 | — | Dissolved | |
| Dairytown Processing Ltd. | — | 654599 | — | Merged | |
| Dairytown Products | — | 677318 | — | Active | |
| Dairytown Studios | — | 677709 | — | Dissolved | |
| Dairytown Veterinary Hospital | — | 643626 | — | Active | |
| Daisho Limited Partnership | — | 768014 | — | Active | |
| Daisies and Dreams | — | 602750 | — | Dissolved | |
| Daisy Holdings Inc. | — | 677064 | — | Active | |
| Daisy Movies Productions Ltd | — | 635565 | — | Dissolved | |
| Daisy by the River Inc. | — | 754823 | — | Active | |
| Daisy's Foot Care Services | — | 755009 | — | Active | |
| Daisyfield Card Creations | — | 669108 | — | Dissolved | |
| Dajo Holdings Ltd. | — | 665669 | — | Active | |
| Dajo Holdings Ltd. | — | 665336 | — | Merged | |
| Dako Estate Inc. | — | 727212 | — | Dissolved | |
| Dako Estate Property Management | — | 768056 | — | Active | |
| Dakota Marie Cleans | — | 733970 | — | Active | |
| Daksa Creators | — | 662319 | — | Dissolved | |
| Dakshin Restaurant Inc. | — | 753236 | — | Active | |
| DalCor Properties Inc. | — | 693752 | — | Dissolved | |
| Dalby Haven Group Ltd. | — | 775675 | — | Active | |
| Dalcor Properties | — | 685437 | — | Dissolved | |
| Dalcourt Enterprises (2016) | — | 690004 | — | Active | |
| Dale & Small Group Private Wealth Management | — | 729926 | — | Active | |
| Dale Andrew Jewett Shear Attitude | — | 664139 | — | Dissolved | |
| Dale Arsenault's Auto Repair | — | 661396 | — | Active | |
| Dale Bonney Builders Inc. | — | 508922 | — | Dissolved | |
| Dale G. Perkins Ltd. | — | 513015 | — | Active | |
| Dale Hebert Construction & Woodworking | — | 660421 | — | Dissolved | |
| Dale Keith Construction Ltd. | — | 54932 | — | Active | |
| Dale MacMillan Auto Service | — | 629353 | — | Dissolved | |
| Dale Matheson's Towing and Repair | — | 670612 | — | Dissolved | |
| Dale McGraw Autoshop Inc. | — | 770313 | — | Active | |
| Dale Preston The Art of Photography Inc. | — | 712150 | — | Active | |
| Dale Reidpath Enterprises Inc. | — | 644670 | — | Active | |
| Dale Robinson Technical Services | — | 628302 | — | Dissolved | |
| Dale T. Briggs P.C. Inc. | — | 616441 | — | Dissolved | |
| Dale's Auto & R.V. Sales | — | 620401 | — | Dissolved | |
| Dale's Enterprises Ltd. | — | 516357 | — | Merged | |
| Dale's Enterprises Ltd. | — | 722791 | — | Active | |
| Dale's Happy Tails Dog Grooming | — | 613861 | — | Dissolved | |
| Dale's More Than Games | — | 646764 | — | Active | |
| Dale's Music Inc. | — | 54374 | — | Dissolved | |
| Dale's Music Shop | — | 621399 | — | Dissolved | |
| Dale's Small Engine | — | 645351 | — | Dissolved | |
| DaleD Consulting Ltd. | — | 721234 | — | Active | |
| Daley D'Zires Edutainment | — | 753827 | — | Active | |
| Daley Day Care | — | 652057 | — | Dissolved | |
| Daley Dog Walking & Pet Care | — | 703942 | — | Dissolved | |
| Daley Farms | — | 716518 | — | Pending | |
| Daley Seafood Ltd. | — | 732032 | — | Dissolved | |
| Daley's "Family, Fine & Fun" Photography | — | 611570 | — | Dissolved | |
| Daley's Contracting | — | 627227 | — | Dissolved | |
| DaleyAesthetics | — | 747617 | — | Active | |
| Dalfen & Glickman Inc. | — | 649378 | — | Active | |
| Dalgic Import Export | — | 769091 | — | Active | |
| Dalhousie Hardware Inc. | — | 775087 | — | Active | |
| Dalhousie Hardware Inc. | — | 771908 | — | Merged | |
| Dalhousie Inn & Suites Ltd. | — | 758459 | — | Active | |
| Dalhousie Lighthouse bistro | — | 669469 | — | Dissolved | |
| Dalhousie Minor Soccer Association | — | 773811 | — | Active | |
| Dalhousie Rotary Club Inc. | — | 617975 | — | Active | |
| Dalhousie Scaffolding Inc. | — | 775086 | — | Active | |
| Dalhousie Scaffolding Inc. | — | 771912 | — | Merged | |
| Dalhousie Tavern | — | 676077 | — | Dissolved | |
| Dalhousie Travel | — | 705235 | — | Dissolved | |
| Dalhousie Travel Ltd. | — | 6732 | — | Dissolved | |
| Dali Canada Inc. | — | 625483 | — | Dissolved | |
| Dalia Medical Spa Inc. | — | 729453 | — | Active | |
| Dallaire Truck & Auto Repair Ltd | — | 614154 | — | Dissolved | |
| Dallas Mclatchy Handyman Services | — | 709630 | — | Dissolved | |
| DallasPreston.com | — | 348640 | — | Dissolved | |
| Dallen Consultants Ltd. | — | 709012 | — | Active | |
| Dalling TMC Inc. | — | 620619 | — | Dissolved | |
| Dallingvale Jerseys Ltd. | — | 635702 | — | Active | |