| DUGGAN IT SOLUTIONS LTD. | — | BC0921000 | 2011-09-23 | Active | |
| DUGGAN MEDIA GROUP | — | FM0603109 | 2013-03-12 | Active | |
| DUGGAN MOUNTAINSIDE DESIGNS | — | FM0809156 | 2020-06-24 | Active | |
| DUGGAN PHOTOGRAPHY SERVICES | — | FM0071945 | 1986-09-02 | Active | |
| DUGGAN SECURITIES LTD. | — | BC0203531 | 1980-01-28 | Inactive | |
| DUGGAN SILLERS & ASSOCIATES LTD. | — | BC1192119 | 2019-01-01 | Active | |
| DUGGAN SILLERS & ASSOCIATES LTD. | — | BC0285658 | 1984-11-30 | Inactive | |
| DUGGAN SITE & SERVICE | — | FM0210728 | 1996-11-28 | Active | |
| DUGGAN'S COFFEE LTD. | — | BC0760771 | 2006-06-15 | Inactive | |
| DUGGAN'S ROOFERS | — | FM0102361 | 1989-11-10 | Active | |
| DUGGAN'S WHOLESALE LTD. | — | BC0528656 | 1996-10-08 | Inactive | |
| DUGGAN'S WOOD AND WOOL | — | FM0182613 | 1995-07-12 | Active | |
| DUGGANCORP INDUSTRIES LTD. | — | A0114732 | 2020-09-22 | Active | |
| DUGGANCORP INDUSTRIES LTD. | — | A0081144 | 2010-09-13 | Inactive | |
| DUGGANSDIGS | — | FM0630448 | 2014-03-29 | Active | |
| DUGGLEBY PHARMACY LTD. | — | BC1356810 | 2022-04-05 | Active | |
| DUGGMORE INVESTMENTS AND MANUFACTURING INC. | — | BC0415157 | 1991-11-08 | Inactive | |
| DUGGYS DOOS DOG GROOMING | — | FM0773137 | 2019-04-03 | Active | |
| DUGLOGAN ENTERPRISES | — | FM0569102 | 2011-10-31 | Active | |
| DUGMAC CONTRACTING | — | FM0553108 | 2011-03-28 | Active | |
| DUGO ENTERPRISES LTD. | — | BC0622688 | 2001-02-21 | Inactive | |
| DUGO FAMILY ENTERPRISES INC. | — | BC1418289 | 2023-05-25 | Active | |
| DUGOLD HOLDINGS LTD. | — | BC0132002 | 1974-10-10 | Inactive | |
| DUGOUT BAR & GRILL | — | FM0362943 | 2004-01-13 | Active | |
| DUGOUT FAMILY RESTAURANT | — | FM0538995 | 2010-09-21 | Active | |
| DUGRAY COMMERCIAL CLEANING | — | FM0672512 | 2015-10-16 | Active | |
| DUGRAY TRUCKING | — | FM0443868 | 2007-02-14 | Active | |
| DUGREG GRAPHIC ARTS LTD. | — | BC0086856 | — | Inactive | |
| DUGRI CONSTRUCTION LTD. | — | BC0802529 | 2007-09-13 | Inactive | |
| DUGRI TRUCKING | — | FM1009643 | 2023-02-14 | Active | |
| DUGUAY CONTRACTING | — | FM0300015 | 2001-04-19 | Active | |
| DUGUAY CONTRACTING LTD. | — | BC0728858 | 2005-06-30 | Inactive | |
| DUGUAY DESIGNS | — | FM0258598 | 1999-05-03 | Active | |
| DUGUAY DRYWALL | — | FM0749098 | 2018-06-08 | Active | |
| DUGUAY ENTERPRISES LTD. | — | BC0532030 | 1996-11-28 | Inactive | |
| DUGUAY HOLDINGS LTD. | — | BC0138830 | 1975-06-23 | Inactive | |
| DUGUAY INVESTMENTS LTD. | — | BC1453942 | 2023-12-08 | Active | |
| DUGUAY'S AUTO-REPAIR SERVICE | — | FM0099721 | 1989-08-03 | Active | |
| DUGUID CONSTRUCTION SERVICES | — | FM0491366 | 2008-12-03 | Active | |
| DUGUID ONSITE PC PARAMEDIC | — | FM0336054 | 2002-12-03 | Active | |
| DUGUID ONSITE PC PARAMEDIC | — | FM0492637 | 2008-12-30 | Inactive | |
| DUGUID PARTNER CO. LTD. | — | BC0897174 | 2010-12-06 | Inactive | |
| DUGVON HOLDINGS LTD. | — | BC0180977 | 1978-10-02 | Inactive | |
| DUGY'S DEPOTS LTD. | — | BC0611116 | 2000-07-24 | Active | |
| DUH BOLTS HARDWARE | — | FM0667615 | 2015-08-14 | Active | |
| DUHA CENTER OF EXCELLENCE | — | FM0722943 | 2017-07-05 | Active | |
| DUHA COLOR SERVICES LIMITED | — | A0103018 | 2017-07-05 | Active | |
| DUHA PAY FINANCE LTD. | — | BC1443840 | 2023-10-11 | Active | |
| DUHAIME ADVISORY CORPORATION | — | BC0890118 | 2010-09-10 | Inactive | |
| DUHAIME LAW | — | FM0235702 | 1998-03-13 | Active | |
| DUHAIME LAW | — | FM0555847 | 2011-05-02 | Active | |
| DUHAIME LEGAL INFORMATION CORPORATION | — | BC0868466 | 2009-12-10 | Inactive | |
| DUHAMEL COLOUR CONSULTING | — | FM0802987 | 2020-04-06 | Active | |
| DUHAMEL CONTRACTING | — | FM0840664 | 2021-04-09 | Active | |
| DUHAMEL WATERSHED SOCIETY | — | S0062059 | 2013-12-16 | Active | |
| DUHAN MANAGEMENT COMPANY INC. | — | BC0191658 | 1979-05-28 | Inactive | |
| DUHAN'S ENTERPRISING | — | FM0109071 | 1990-06-25 | Active | |
| DUHAN'S WELDING LTD. | — | BC0087297 | 1969-06-09 | Inactive | |
| DUHIGH HOLDINGS LTD. | — | BC0378263 | 1989-12-13 | Inactive | |
| DUHRA BUILDING SERVICES | — | FM0326008 | 2002-06-26 | Active | |
| DUHRA CONSULTING LTD. | — | BC0835991 | 2008-09-26 | Active | |
| DUHRA ENTERPRISES LTD. | — | BC0561204 | 1998-03-12 | Active | |
| DUHRA EXPRESS SERVICES INC. | — | BC0865610 | 2009-11-05 | Inactive | |
| DUHRA HOLDINGS LTD. | — | BC0498144 | 1995-06-08 | Active | |
| DUHRA PLAZA LTD. | — | BC0928448 | 2011-12-22 | Active | |
| DUHRA PROPERTIES LIMITED | — | BC0759559 | 2006-06-02 | Active | |
| DUHRA TRADING LTD. | — | BC0694512 | 2004-05-07 | Inactive | |
| DUHRA TRANSPORT LTD. | — | BC1099449 | 2016-12-08 | Active | |
| DUHRRA EXPRESS SERVICES LTD. | — | BC0748436 | 2006-02-09 | Inactive | |
| DUI - DRESSED UNDER THE INFLUENCE | — | FM0550846 | 2011-03-01 | Active | |
| DUIF FINANCIAL CONSULTANTS INC. | — | BC1113693 | 2017-04-02 | Inactive | |
| DUIKER AIRCRAFT | — | FM0575250 | 2012-01-30 | Active | |
| DUIN FINANCIAL LEADERSHIP SOLUTIONS | — | FM1022008 | 2023-07-22 | Active | |
| DUINNOVATE CONSULTING INC. | — | A0130934 | 2024-01-27 | Active | |
| DUINO'S ENTERPRISES LTD. | — | BC0112665 | 1972-10-12 | Inactive | |
| DUINVELD FARMS LTD. | — | BC1017426 | 2014-10-27 | Active | |
| DUIO DERIVE UNIQUE INNOVATIVE OPPORTUNITY INC. | — | BC1583533 | 2026-03-25 | Active | |
| DUISBURG ENTERPRISES INC. | — | BC0343676 | 1988-04-13 | Inactive | |
| DUISG (AWAKEN) MERCHANDISING | — | FM0225194 | 1997-08-13 | Active | |
| DUIT DEVELOPMENTS | — | FM0069708 | 1986-05-21 | Active | |
| DUIT EARTHWORKS LTD. | — | BC1479330 | 2024-05-03 | Active | |
| DUIT ENTERPRISES LTD. | — | BC0423567 | 1992-04-06 | Inactive | |
| DUIT MARKETING INC. | — | BC0177641 | 1978-07-10 | Inactive | |
| DUIT MEDIA INC. | — | BC1382539 | 2022-10-13 | Active | |
| DUITS BROS ENTERPRISES | — | FM0656478 | 2015-03-25 | Active | |
| DUIVEST PROJECTS | — | FM0793791 | 2019-12-06 | Active | |
| DUJA ESTHETIC SERVICES LTD. | — | BC0402658 | 1991-03-15 | Inactive | |
| DUJA INDUSTRIAL INC. | — | BC0612461 | 2000-08-17 | Inactive | |
| DUJE CONTRACTING LTD. | — | BC1367490 | 2022-06-14 | Active | |
| DUJELA INVESTMENT ULC | — | BC1518433 | 2025-01-01 | Active | |
| DUJELA INVESTMENT ULC | — | BC1182281 | 2018-10-09 | Inactive | |
| DUJOUR BOUTIQUE & GALLERY | — | FM0485787 | 2008-09-09 | Active | |
| DUK HUNG FOOD LTD. | — | BC0278944 | 1984-06-05 | Inactive | |
| DUK-HED ENTERPRISES | — | FM0108967 | 1990-06-20 | Active | |
| DUKA ENVIRONMENTAL SERVICES LTD. | — | BC0308529 | 1986-04-30 | Active | |
| DUKA INTELLIGENCE INC. | — | A0132251 | 2024-05-08 | Active | |
| DUKA INVESTMENTS INC. | — | BC0200289 | 1979-11-20 | Inactive | |
| DUKA NATURAL | — | FM0699399 | 2016-09-28 | Active | |
| DUKA PAINTING AND RENOVATIONS | — | FM0643187 | 2014-09-23 | Active | |
| DUKA PROPERTY MANAGEMENT INC. | — | BC1342228 | 2022-01-11 | Active | |
| DUKA SHOP | — | FM1017729 | 2023-05-29 | Inactive | |
| DUKAAAN | — | FM0867641 | 2022-01-16 | Active | |
| DUKAAN ENTERPRISES LTD. | — | BC0605309 | 2000-04-12 | Active | |
| DUKAIJI B.C. LTD. | — | BC1076526 | 2016-05-20 | Inactive | |
| DUKAN LIVE | — | FM1025020 | 2023-09-05 | Active | |
| DUKANE COMMUNICATIONS SYSTEMS | — | FM0335716 | 2002-11-28 | Inactive | |
| DUKANE COMMUNICATIONS SYSTEMS | — | FM0368901 | 2004-03-30 | Inactive | |
| DUKAR HOLDINGS | — | FM0011048 | 1972-11-28 | Active | |
| DUKARE KONSULTING | — | FM0587009 | 2012-07-03 | Active | |
| DUKE & ASSOCIATES PUBLIC RELATIONS INC. | — | BC0981775 | 2013-09-30 | Inactive | |
| DUKE & DUCHESS APPAREL LTD. | — | BC0967914 | 2013-04-19 | Inactive | |
| DUKE & DUCHESS HEALTHCARE SERVICES | — | FM0413497 | 2005-12-29 | Active | |
| DUKE & DUCHESS HEALTHCARE SERVICES | — | FM0445210 | 2007-03-02 | Inactive | |
| DUKE & DUKE INVESTMENTS INC. | — | BC0821862 | 2008-04-10 | Inactive | |
| DUKE & GERARD'S ESPRESSO + KITCHEN | — | FM0741805 | 2018-03-05 | Active | |
| DUKE & SHAH DESIGNER VINTAGE RUGS INCORPORATED | — | BC0996149 | 2014-03-11 | Inactive | |
| DUKE 4102 ENTERPRISES | — | FM0314788 | 2002-01-08 | Active | |
| DUKE ACADEMY | — | FM0807031 | 2020-05-26 | Active | |
| DUKE AGENCIES LTD. | — | BC0019133 | — | Inactive | |
| DUKE AND DUCHESS OUTFITTERS | — | FM1023513 | 2023-08-15 | Inactive | |
| DUKE AND DUCHESS OUTFITTERS | — | FM1025018 | 2023-09-05 | Active | |
| DUKE AND KAREN HOLDINGS LTD. | — | BC0804856 | 2007-10-09 | Active | |
| DUKE AND KAREN PETERSON FOUNDATION | — | XS0053548 | 2008-04-15 | Inactive | |
| DUKE APARTMENTS LIMITED | — | BC0057683 | 1963-08-22 | Inactive | |
| DUKE ARCHITECTURAL MILLWORK | — | FM0333007 | 2002-10-18 | Active | |
| DUKE AUTO BODY & MOTOR SPORTS | — | FM0265054 | 1999-08-24 | Active | |
| DUKE AUTO GLASS & UPHOLSTERY | — | FM0282198 | 2000-06-07 | Active | |
| DUKE AUTOMACHINE | — | FM0748175 | 2018-05-28 | Inactive | |
| DUKE AUTOMECHANICS | — | FM0298304 | 2001-03-26 | Active | |
| DUKE BOATWORKS LTD. | — | BC0046765 | — | Inactive | |
| DUKE BROS ENTERPRISES INC. | — | BC1176327 | 2018-08-17 | Active | |
| DUKE BUILDING SERVICES AUTO LTD. | — | BC1587501 | 2026-04-22 | Active | |
| DUKE CASCADIA HOLDINGS LIMITED | — | BC0505008 | 1995-09-27 | Inactive | |
| DUKE CONSTRUCTION | — | FM0316666 | 2002-02-06 | Active | |
| DUKE CONSTRUCTION INC. | — | BC1130769 | 2017-08-18 | Active | |
| DUKE CONSTRUCTION LTD. | — | BC0314857 | 1986-09-17 | Inactive | |
| DUKE CONSULTING | — | FM0117912 | 1991-04-23 | Active | |
| DUKE CONSULTING | — | FM0062012 | 1985-06-18 | Active | |
| DUKE CONSULTING GROUP LTD. | — | BC0824283 | 2008-05-06 | Active | |
| DUKE CROSS FOUNDATION | — | S0047876 | 2004-07-26 | Inactive | |
| DUKE CROSSING LTD. | — | BC0776354 | 2006-12-05 | Inactive | |
| DUKE CUSTOM KITCHENS | — | FM0759142 | 2018-10-16 | Active | |
| DUKE CUSTOM KITCHENS | — | FM0627261 | 2014-02-19 | Active | |
| DUKE CYBERTREK INC. | — | BC0505246 | 1995-09-29 | Inactive | |
| DUKE DESIGN CO. | — | FM0255168 | 1999-03-05 | Active | |
| DUKE DEVELOPMENTS LTD. | — | BC0373708 | 1989-10-03 | Inactive | |
| DUKE DRAGON NETWORK | — | FM0664286 | 2015-06-28 | Active | |
| DUKE DYNAMICS INC. | — | BC1061792 | 2016-01-18 | Inactive | |
| DUKE DYNAMICS LTD. | — | BC0793696 | 2007-06-09 | Inactive | |
| DUKE ELECTRIC | — | FM0093208 | 1988-12-14 | Active | |
| DUKE ELECTRIC | — | FM0732687 | 2017-11-09 | Active | |
| DUKE ELECTRIC LTD. | — | BC1215021 | 2019-07-03 | Active | |
| DUKE ELECTRICAL SOLUTIONS & CONTRACTING LTD. | — | BC1576073 | 2026-02-03 | Active | |
| DUKE ENERGY | — | FM0326078 | 2002-06-27 | Inactive | |
| DUKE ENERGY CANADA PIPELINE LTD. | — | A0051259 | 2000-02-14 | Inactive | |
| DUKE ENERGY FIELD SERVICES CANADA LTD. | — | A0054769 | 2001-06-14 | Inactive | |
| DUKE ENERGY GAS TRANSMISSION | — | FM0326072 | 2002-06-27 | Inactive | |
| DUKE ENERGY GAS TRANSMISSION CANADA | — | FM0326077 | 2002-06-27 | Inactive | |
| DUKE ENERGY MARKETING CANADA CORP. | — | A0060315 | 2003-10-03 | Inactive | |
| DUKE ENERGY MARKETING LIMITED PARTNERSHIP | — | XP0211030 | 1996-12-04 | Inactive | |
| DUKE ENERGY MIDSTREAM SERVICES CANADA CORPORATION | — | A0065856 | 2005-08-26 | Inactive | |
| DUKE ENERGY MIDSTREAM SERVICES CANADA LTD. | — | A0051260 | 2000-02-14 | Inactive | |
| DUKE ENERGY SERVICES CANADA LTD. | — | A0049432 | 1999-05-06 | Inactive | |
| DUKE ENERGY SERVICES CANADA ULC | — | C0861585 | 2009-09-17 | Active | |
| DUKE ENTERPRISES | — | FM0236888 | 1998-04-03 | Active | |
| DUKE ENTERPRISES | — | FM0165230 | 1994-08-12 | Inactive | |
| DUKE ENTERPRISES LTD. | — | BC0153869 | 1976-10-19 | Inactive | |
| DUKE ETSE FOREVER MARKETING | — | FM0625006 | 2014-01-22 | Active | |
| DUKE FAMILY HOLDINGS LTD. | — | BC1472946 | 2024-03-27 | Active | |
| DUKE FASHION CAPITAL INC. | — | BC1046663 | 2015-08-21 | Active | |
| DUKE FILM CORP. | — | BC0473721 | 1994-05-26 | Inactive | |
| DUKE FILM CORP. | — | BC1103438 | 2017-01-11 | Inactive | |
| DUKE FINGARD CANADIAN LTD. | — | BC0031319 | — | Inactive | |
| DUKE FINGARD LIMITED | — | BC0029086 | — | Inactive | |
| DUKE FIRE SERVICES INC. | — | A0139558 | 2025-12-02 | Active | |
| DUKE FOOD & BEVERAGE CO. LTD. | — | BC0602966 | 2000-03-09 | Inactive | |
| DUKE GP LTD. | — | BC1043429 | 2015-07-21 | Active | |
| DUKE HOLDINGS LTD. | — | BC0091299 | 1970-01-12 | Inactive | |
| DUKE HOLDINGS LTD. | — | BC0298029 | 1985-09-20 | Active | |
| DUKE HOME MARKETING CONSULTANTS | — | FM0104870 | 1990-02-15 | Active | |
| DUKE HOSPITALITY SERVICES LTD. | — | BC0364377 | 1989-04-25 | Inactive | |
| DUKE HOUSE OF ART INCORPORATED | — | BC0553584 | 1997-11-04 | Inactive | |
| DUKE INDUSTRIAL | — | FM0644104 | 2014-10-04 | Active | |
| DUKE INDUSTRIES LIMITED | — | BC0087305 | — | Inactive | |
| DUKE INSPECTION SERVICES | — | FM0644043 | 2014-10-03 | Active | |
| DUKE INTERNATIONAL LTD. | — | BC0129215 | 1974-06-19 | Inactive | |
| DUKE INVESTMENTS LTD. | — | BC0712495 | 2004-12-29 | Inactive | |
| DUKE INVESTMENTS LTD. | — | BC0161271 | 1977-05-09 | Inactive | |
| DUKE INVESTMENTS LTD. | — | BC0060712 | — | Inactive | |
| DUKE JETS LTD. | — | A0078204 | 2009-09-19 | Inactive | |
| DUKE JIANG MEDIA | — | FM0834895 | 2021-02-27 | Active | |
| DUKE LAW CORPORATION | — | BC0710833 | 2004-12-10 | Active | |
| DUKE LAWN AND GARDEN | — | FM0391587 | 2005-03-01 | Active | |
| DUKE LEASING LTD. | — | BC0262747 | 1983-04-14 | Inactive | |
| DUKE LEGACY HOLDINGS LTD. | — | BC0960858 | 2013-01-24 | Active | |
| DUKE LIMITED PARTNERSHIP | — | LP0666498 | 2015-07-28 | Inactive | |
| DUKE LUMBER LTD. | — | BC0101903 | 1971-07-30 | Inactive | |
| DUKE MAKING HAY | — | FM1041913 | 2024-03-23 | Active | |
| DUKE MANAGEMENT LTD. | — | BC0057164 | 1963-06-27 | Inactive | |
| DUKE MARINE TECHNICAL SERVICES CANADA INC. | — | A0120371 | 2021-10-26 | Active | |