| DUNLAP'S TRUCKING | — | 669608 | — | Dissolved | |
| DUNLEEN INC | — | 502822 | — | Dissolved | |
| DUNLOP CEDAR LTD. - CEDRE DUNLOP LTEE | — | 41515 | — | Dissolved | |
| DUNLOP CONSTRUCTION INC. | — | 50227 | — | Dissolved | |
| DUNLOP ENTERPRISES LTD. | — | 5324 | — | Dissolved | |
| DUNLOP TIRES (CANADA) LTD. | — | 74289 | — | Dissolved | |
| DUNLOP'S IRVING | — | 303818 | — | Dissolved | |
| DUNLOP'S SALES AND SERVICE LTD. | — | 5325 | — | Dissolved | |
| DUNLOP'S TREE REMOVAL & LAWN CARE | — | 328334 | — | Dissolved | |
| DUNMAR | — | 308763 | — | Dissolved | |
| DUNMARC LTD. LTEE | — | 5326 | — | Dissolved | |
| DUNN AND PEARLE DAIRY BAR | — | 336774 | — | Dissolved | |
| DUNN ASSOCIATES | — | 349499 | — | Dissolved | |
| DUNN CONSTRUCTION CO. LTD. | — | 5327 | — | Active | |
| DUNN DISTRIBUTORS | — | 303819 | — | Dissolved | |
| DUNN'S AUTO SALES LTD. | — | 11273 | — | Merged | |
| DUNN'S BOUTIQUE | — | 327119 | — | Dissolved | |
| DUNN'S MANUFACTURED HOME TRANSPORT INC. | — | 508949 | — | Dissolved | |
| DUNN'S TRACTOR SALES LTD. | — | 33946 | — | Dissolved | |
| DUNN'S VARIETY LTD. | — | 650267 | — | Active | |
| DUNN'S VARIETY LTD. | — | 5330 | — | Merged | |
| DUNN'S WEST KENT INC. | — | 52673 | — | Dissolved | |
| DUNN, THEOBALD & JOHNSON LTD. | — | 5329 | — | Dissolved | |
| DUNNCO ENTERPRISES LTD. | — | 501977 | — | Dissolved | |
| DUNNETT BROS QUALITY WINDSHIELD REPAIR SYSTEMS | — | 320166 | — | Dissolved | |
| DUNNETT INVESTMENTS INC. | — | 34868 | — | Active | |
| DUNNETT LUMBER LTD. | — | 92218 | — | Dissolved | |
| DUNNETT WOODWORKING | — | 322859 | — | Dissolved | |
| DUNNETT'S HOLDINGS LTD. | — | 514096 | — | Active | |
| DUNNETT'S LANDSCAPING LTD. | — | 507822 | — | Active | |
| DUNNETT'S SCRAP METALS | — | 311751 | — | Dissolved | |
| DUNNING CURRIE INSURANCE INC. | — | 752933 | — | Dissolved | |
| DUNNMAC INC. | — | 46072 | — | Merged | |
| DUNOBLE LIMITED | — | 30716 | — | Dissolved | |
| DUNPHY BROS. FINA | — | 303821 | — | Dissolved | |
| DUNPHY FINANCIAL LTD. | — | 606110 | — | Active | |
| DUNPHY'S AUTO LTD. | — | 44578 | — | Dissolved | |
| DUNPHY'S CONVENIENCE STORE LTD. | — | 31335 | — | Dissolved | |
| DUNPHY'S HOLDINGS LTD. | — | 31283 | — | Merged | |
| DUNPHY'S HOLSTEINS LTD. | — | 622788 | — | Active | |
| DUNPHY'S POULTRY FARM LTD. | — | 5333 | — | Merged | |
| DUNPHY'S POULTRY FARM LTD. | — | 622785 | — | Active | |
| DUNROMAIN FARMS LTD. | — | 32533 | — | Dissolved | |
| DUNSINANE COAL LIMITED | — | 92221 | — | Dissolved | |
| DUNSINANE COAL MINES, LIMITED | — | 92222 | — | Dissolved | |
| DUNSTAFFNAGE BED & BREAKFAST | — | 342391 | — | Dissolved | |
| DUNSTER'S ENERGY SYSTEMS INC. | — | 42516 | — | Dissolved | |
| DUNTAC LIMITED | — | 31374 | — | Merged | |
| DUNWELL DECORATING SPECIALISTS LTD. | — | 5336 | — | Dissolved | |
| DUNWIN PROPERTIES INC. | — | 619928 | — | Dissolved | |
| DUO DESIGN INC. | — | 47218 | — | Dissolved | |
| DUO VENTURES | — | 310482 | — | Dissolved | |
| DUO-COMMUNICATIONS OF CANADA LTD./ COMMUNICATIONS-DUO DU CANADA LTEE | — | 77433 | — | Dissolved | |
| DUO-PRO AUTO BODY REPAIR | — | 318660 | — | Dissolved | |
| DUOTEK TECHNOLOGIES | — | 606524 | — | Dissolved | |
| DUOYIDIAN PROPERTIES INC. | — | 720899 | — | Active | |
| DUPARC REAL ESTATE GROUP INC. | — | 686648 | — | Active | |
| DUPARC REAL-ESTATE GROUP INC./GROUPE IMMOBILIER DUPARC INC. | — | 646120 | — | Merged | |
| DUPAUL ENTERPRISES LTD. | — | 5337 | — | Dissolved | |
| DUPERE HARDWOOD FLOORING AND SUPPLIES | — | 318396 | — | Dissolved | |
| DUPLAIN PHOTOGRAPHY LTD. | — | 5338 | — | Dissolved | |
| DUPLESSIE HOLDINGS LTD. | — | 30371 | — | Dissolved | |
| DUPLESSIS CLEANING SERVICES | — | 351916 | — | Active | |
| DUPLESSIS ELECTRIC LTD. | — | 5339 | — | Dissolved | |
| DUPLESSIS INVESTMENT INC. | — | 677134 | — | Active | |
| DUPLESSIS SMALL ENGINE REPAIR | — | 339380 | — | Dissolved | |
| DUPLEX ELECTRICAL SERVICES | — | 695004 | — | Dissolved | |
| DUPLI-COLOR CANADA DIVISION | — | 313271 | — | Dissolved | |
| DUPMAG CONSULTATION | — | 340679 | — | Dissolved | |
| DUPONT & LESSARD OIL LTEE | — | 30874 | — | Dissolved | |
| DUPONT CANADA INC. | — | 609961 | — | Inactive | |
| DUPONT CANADA INC. | — | 17559 | — | Merged | |
| DUPONT CANADA INC. | — | 609960 | — | Merged | |
| DUPUIS AUTO PARTS LTD. | — | 5343 | — | Dissolved | |
| DUPUIS CONSTRUCTION | — | 320905 | — | Dissolved | |
| DUPUIS CORNER FISHERMEN'S ASSOCIATION, LIMITED | — | 92225 | — | Dissolved | |
| DUPUIS CUT-STONE LTD. | — | 40848 | — | Dissolved | |
| DUPUIS ENTERPRISES LTD. | — | 92226 | — | Dissolved | |
| DUPUIS FOODMARKET LTD. | — | 5344 | — | Merged | |
| DUPUIS FUNERAL HOME LTD. - MAISON FUNERAIRE DUPUIS LTEE | — | 30844 | — | Active | |
| DUPUIS GLASS INC. | — | 712167 | — | Active | |
| DUPUIS GRANITE MONUMENTS LTD. | — | 5345 | — | Dissolved | |
| DUPUIS HARDWARE LTD. | — | 693993 | — | Active | |
| DUPUIS HARDWARE LTD. | — | 5346 | — | Merged | |
| DUPUIS HARDWARE LTD. | — | 503675 | — | Merged | |
| DUPUIS MASONRY INC. | — | 634677 | — | Dissolved | |
| DUPUIS PROPERTIES INC. | — | 726731 | — | Active | |
| DUPUIS ROOFING | — | 337757 | — | Dissolved | |
| DUPUIS STUDIO LTD. | — | 5347 | — | Dissolved | |
| DUR-EN-BUILD LTD. | — | 56849 | — | Dissolved | |
| DURA-LIFE | — | 311952 | — | Dissolved | |
| DURA-LIFE (1986) | — | 313256 | — | Dissolved | |
| DURABATH BATHROOM & KITCHEN REMODELING | — | 347968 | — | Dissolved | |
| DURABILIS INTERNATIONAL | — | 670134 | — | Dissolved | |
| DURACLEAN ATLANTIC | — | 334940 | — | Dissolved | |
| DURACLEAN ATLANTIC INC. | — | 503169 | — | Dissolved | |
| DURACLEAN BY LEGERE | — | 340216 | — | Dissolved | |
| DURACLEAN BY WILLIE'S CLEANING | — | 340670 | — | Dissolved | |
| DURACLEAN ENVIRONMENTAL LIMITED | — | 56212 | — | Dissolved | |
| DURACLEAN RUG AND UPHOLSTERY CLEANERS | — | 303825 | — | Dissolved | |
| DURACON ENTERPRISES | — | 316762 | — | Dissolved | |
| DURAFAB CANADA INC. | — | 48703 | — | Dissolved | |
| DURAFORM STEEL BUILDINGS LTD. | — | 5348 | — | Dissolved | |
| DURALINE INDUSTRIES LTD.-(LES INDUSTRIES DURALINE LTEE) | — | 71387 | — | Dissolved | |
| DURALINE PARKING LOT STRIPING | — | 681209 | — | Dissolved | |
| DURANCE ASSOCIATES | — | 315710 | — | Dissolved | |
| DURAND DICARLO TRUCKING LTD. | — | 47673 | — | Dissolved | |
| DURANDAL LTEE/LTD | — | 38088 | — | Dissolved | |
| DURAPAVE INC. | — | 633848 | — | Dissolved | |
| DURAPAVE LTD. | — | 5349 | — | Dissolved | |
| DURCO CONSTRUCTION CO. LTD. | — | 5350 | — | Dissolved | |
| DURDEN DESIGNS | — | 602057 | — | Dissolved | |
| DUREAU LTEE. | — | 5351 | — | Dissolved | |
| DURELL INTERNATIONAL | — | 329453 | — | Dissolved | |
| DURELL MURRAY INSURANCE LIMITED | — | 11493 | — | Merged | |
| DURELLE'S PEST MANAGEMENT LTD. | — | 637112 | — | Active | |
| DURELLE'S SERVICE STATION | — | 330041 | — | Dissolved | |
| DUREPOS & LEBLANC (1987) INC. | — | 38838 | — | Withdrawn | |
| DUREPOS & LEBLANC INVESTMENTS INC. | — | 32237 | — | Dissolved | |
| DUREPOS ASSURANCE LTE - DUREPOS INSURANCE LTD. | — | 5352 | — | Merged | |
| DUREPOS ET OUELLET LTEE. | — | 92227 | — | Dissolved | |
| DUREPOS HOLDINGS LTD. | — | 32056 | — | Active | |
| DUREPOS SPORTS LTD./LTEE | — | 501653 | — | Dissolved | |
| DURER INC. | — | 41893 | — | Dissolved | |
| DURHAM AUTO SALES LTD. | — | 5355 | — | Dissolved | |
| DURHAM CONSULTANTS LIMITED | — | 500833 | — | Dissolved | |
| DURHAM HOLDINGS LTD. | — | 5356 | — | Dissolved | |
| DURHAM SERVICE CENTER | — | 331355 | — | Dissolved | |
| DURHAM SILVER FOX RANCH | — | 303826 | — | Dissolved | |
| DURHAM SUPPLY & CONSTRUCTION LTD. | — | 37821 | — | Dissolved | |
| DURISOL | — | 684445 | — | Dissolved | |
| DURISOL | — | 639554 | — | Dissolved | |
| DURKEE INDUSTRIAL FOODS CORP. | — | 70905 | — | Dissolved | |
| DURKSEN GUNITE & GROUT (B.C.) LTD. | — | 18762 | — | Dissolved | |
| DURLING'S SHOPPETTE LTD. | — | 30447 | — | Dissolved | |
| DURMAN LTD. | — | 5358 | — | Withdrawn | |
| DURNING LAUNDRY SERVICES | — | 300680 | — | Dissolved | |
| DURNNIAN POULTRY FARMS LTD. | — | 5359 | — | Merged | |
| DURNNIAN POULTRY FARMS LTD. | — | 506215 | — | Active | |
| DURNNIAN REFINISHING LTD. | — | 50403 | — | Merged | |
| DURO INDUSTRIES (CANADA) INC./INDUSTRIES DURO (CANADA) INC. | — | 510143 | — | Dissolved | |
| DURO-CHEM INC. | — | 71056 | — | Dissolved | |
| DURO-TEST CANADA COMPANY | — | 77709 | — | Dissolved | |
| DURO-TEST CANADA INC. | — | 17569 | — | Dissolved | |
| DUROCKO DESIGN LTD. | — | 48630 | — | Dissolved | |
| DUROLAM | — | 332471 | — | Dissolved | |
| DURON ATLANTIC LIMITED | — | 74495 | — | Inactive | |
| DURONDEL C.P. INC. | — | 54052 | — | Merged | |
| DURPAC MECHANICAL LTD. | — | 5360 | — | Dissolved | |
| DURPAC SOLAR DESIGN AND INSTALLATION LTD | — | 20028 | — | Dissolved | |
| DURTY NELLY'S IRISH PUB | — | 775016 | — | Active | |
| DURWOOD PROPERTIES | — | 308638 | — | Dissolved | |
| DUSANKA'S EURO-HAIR-SHOP | — | 350171 | — | Dissolved | |
| DUSENBAGEL BAKERY & RESTAURANTS LTD. | — | 52653 | — | Merged | |
| DUSK TILL DAWN FURNITURE AND APPLIANCE DELIVERY | — | 343353 | — | Dissolved | |
| DUSSY-TRANSPORT INC. | — | 780057 | — | Active | |
| DUST DEVILS | — | 613437 | — | Dissolved | |
| DUST-BUNNIES | — | 331913 | — | Dissolved | |
| DUSTBANE ENTERPRISES LIMITED | — | 17570 | — | Dissolved | |
| DUSTBANE PRODUCTS | — | 303827 | — | Dissolved | |
| DUSTBUSTERS COMPLETE JANITORIAL SERVICES | — | 343050 | — | Dissolved | |
| DUSTILYN VENTURES INC. | — | 514122 | — | Dissolved | |
| DUSTRIC DEVELOPMENTS LTD. | — | 5361 | — | Dissolved | |
| DUSTY SPORTS PICKS | — | 752068 | — | Active | |
| DUTCH BOY GROUP | — | 603810 | — | Active | |
| DUTCH CANADIAN HOLDINGS LIMITED | — | 19051 | — | Dissolved | |
| DUTCH DAIRY DELIGHTS | — | 338412 | — | Dissolved | |
| DUTCH DRIVE INN LTD. | — | 5362 | — | Dissolved | |
| DUTCH FRIED CHICKEN AND CONVENIENCE | — | 325121 | — | Dissolved | |
| DUTCH GARDENS | — | 303828 | — | Dissolved | |
| DUTCH KENNELS | — | 337669 | — | Dissolved | |
| DUTCH NURSERY | — | 303829 | — | Dissolved | |
| DUTCH OAK INVESTMENTS INC. | — | 502918 | — | Dissolved | |
| DUTCH OVEN INC. | — | 48524 | — | Dissolved | |
| DUTCH TREAT FARM | — | 300679 | — | Dissolved | |
| DUTCH VALLEY ACRES INC. | — | 651842 | — | Active | |
| DUTCH VALLEY DEVELOPMENTS | — | 314784 | — | Dissolved | |
| DUTCH VALLEY DEVELOPMENTS | — | 318776 | — | Dissolved | |
| DUTCH VALLEY DEVELOPMENTS LTD. | — | 33766 | — | Merged | |
| DUTCH VALLEY ENTERPRISES LTD. | — | 635630 | — | Dissolved | |
| DUTCH VALLEY LUMBER COMPANY | — | 303830 | — | Dissolved | |
| DUTCH VALLEY TRUCKING LTD. | — | 5363 | — | Dissolved | |
| DUTCH VALLEY WOOD PRODUCTS | — | 331525 | — | Dissolved | |
| DUTCH WHARF WEIR LTD. | — | 35899 | — | Active | |
| DUTCHER BUSINESS CONSULTANTS | — | 300602 | — | Dissolved | |
| DUTCHER CONSTRUCTION LTD. | — | 5364 | — | Dissolved | |
| DUTCHER'S MOBILE ELECTRONICS (D.M.E.) | — | 331870 | — | Dissolved | |
| DUTCHER'S SNOW REMOVAL INC. | — | 686575 | — | Active | |
| DUTCHER'S TAXI | — | 340738 | — | Dissolved | |
| DUTCHER'S USED CAR LISTINGS | — | 338997 | — | Dissolved | |
| DUTCHIE'S BAKE SHOP | — | 308883 | — | Dissolved | |
| DUTCHIE'S BARBER SHOP & HAIR STYLING | — | 340282 | — | Dissolved | |
| DUTCHIE'S BARBER SHOP & HAIR STYLING | — | 616914 | — | Dissolved | |
| DUTCHIE'S BARBER SHOP & HAIR STYLING | — | 316810 | — | Dissolved | |
| DUTCHIE'S BARBER SHOP & HAIR STYLING | — | 617241 | — | Dissolved | |
| DUTCHMAN CENTRAL VACUUM SYSTEMS REG'D | — | 310701 | — | Dissolved | |
| DUTCHMAN CONSTRUCTION LTD. | — | 33544 | — | Dissolved | |
| DUTCHMEN CONTRACTING LTD. | — | 755498 | — | Active | |
| DUTCHMEN CONTRACTING LTD. | — | 56727 | — | Merged | |
| DUTHIE'S CHAIN SAW SALES & SERVICE | — | 303831 | — | Dissolved | |