| DONE RIGHT YARD AND HOME MAINTENANCE | — | FM0220649 | 1997-05-30 | Active | |
| DONE RIGHT YARD MAINTENANCE | — | FM0500878 | 2009-04-23 | Active | |
| DONE RIGHT YARD MAINTENANCE AND PRESSURE WASHING | — | FM0142507 | 1993-04-21 | Inactive | |
| DONE RITE BOOKKEEPING | — | FM0503097 | 2009-05-24 | Active | |
| DONE RITE CLEANING | — | FM0348042 | 2003-05-22 | Active | |
| DONE RITE COASTAL HANDYMAN | — | FM1029856 | 2023-11-10 | Active | |
| DONE RITE CONSTRUCTION LTD. | — | BC0789599 | 2007-04-27 | Inactive | |
| DONE RITE DAYLIGHTING | — | FM0568204 | 2011-10-18 | Active | |
| DONE RITE DOORS, INC. | — | BC0436449 | 1992-11-26 | Inactive | |
| DONE RITE EAVESTROUGH | — | FM0514862 | 2009-11-03 | Active | |
| DONE RITE EPOXY & CUSTOM DESIGN | — | FM0740857 | 2018-02-23 | Active | |
| DONE RITE FENCING | — | FM0523255 | 2010-02-27 | Active | |
| DONE RITE FIRE PROTECTION LTD. | — | BC0742997 | 2005-12-13 | Inactive | |
| DONE RITE JANITORIAL SERVICES | — | FM0375820 | 2004-07-05 | Active | |
| DONE RITE MOBILE SERVICES LTD. | — | BC0092661 | — | Inactive | |
| DONE RITE PROPERTY MANAGMENT | — | FM0212280 | 1997-01-03 | Active | |
| DONE RITE SERVICES | — | FM0123275 | 1991-09-26 | Active | |
| DONE RITE SUPPORTIVE HOUSING SOCIETY | — | S0059282 | 2012-01-13 | Inactive | |
| DONE SOME CARVING | — | FM0168995 | 1994-10-24 | Active | |
| DONE STRUGGLIN' VENTURES | — | FM0216905 | 1997-03-27 | Active | |
| DONE TO A T | — | FM1064478 | 2025-01-11 | Active | |
| DONE TO PERFECTION CLEANING SERVICES | — | FM0514235 | 2009-10-26 | Active | |
| DONE TO THE NINES | — | FM0514057 | 2009-10-23 | Active | |
| DONE TO THE NINES DESIGN INC. | — | BC0906473 | 2011-03-25 | Active | |
| DONE WELL FINISH | — | FM1020078 | 2023-06-27 | Active | |
| DONE WITH DIETING | — | FM0892739 | 2022-10-21 | Active | |
| DONE WITH DIRT CLEANING SERVICES | — | FM1025425 | 2023-09-11 | Active | |
| DONE WITH DIRT CLEANING SERVICES LTD. | — | BC1451824 | 2023-11-28 | Active | |
| DONE WITH DIRT WINDOW CLEANING / PRESSURE WASHING | — | FM0891754 | 2022-10-11 | Active | |
| DONE WRIGHT DOG TRAINING SERVICES | — | FM0663466 | 2015-06-17 | Active | |
| DONE WRIGHT MILLWRIGHT SERVICES LTD. | — | A0091963 | 2014-04-10 | Active | |
| DONE WRITE CONTRACTING LTD. | — | BC0432452 | 1992-09-17 | Inactive | |
| DONE WRITE PRINTING & GRAPHICS | — | FM0388552 | 2005-01-21 | Active | |
| DONE WRITE PRODUCTIONS LIMITED | — | BC0944063 | 2012-06-25 | Active | |
| DONE WRITE SECRETARIAL | — | FM0216770 | 1997-03-24 | Active | |
| DONE YESTERDAY BOOKKEEPING & OFFICE SOLUTIONS | — | FM0331374 | 2002-09-25 | Active | |
| DONE! EVENT SPECIALISTS | — | FM0333981 | 2002-11-05 | Active | |
| DONE-BETTERR TRADE CO. INC. | — | BC0765813 | 2006-08-11 | Inactive | |
| DONE-IN-A-FLASH JANITORIAL | — | FM0185031 | 1995-08-16 | Active | |
| DONE-RIGHT CARPET CLEANING | — | FM0286599 | 2000-08-28 | Active | |
| DONE-RIGHT CONSTRUCTION | — | FM0343202 | 2003-03-21 | Active | |
| DONE-RIGHT DRYWALL LTD. | — | BC0833768 | 2008-08-28 | Active | |
| DONE-RIGHT HOME INSPECTIONS | — | FM0495589 | 2009-02-11 | Active | |
| DONE-RIGHT LABOUR SERVICES | — | FM0776397 | 2019-05-08 | Active | |
| DONE-RIGHT PLUMBING AND HEATING | — | FM0445376 | 2007-03-06 | Active | |
| DONE-RITE CARPET CLEANING | — | FM0290979 | 2000-11-15 | Active | |
| DONE-RITE CLEANING SERVICES | — | FM0099549 | 1989-07-27 | Active | |
| DONE-RITE CONTRACTING | — | FM0074945 | 1987-01-19 | Active | |
| DONE-RITE DAYLIGHTING OILFIELD SERVICES LTD. | — | BC0968119 | 2013-05-01 | Active | |
| DONE-RITE ENT. | — | FM0237287 | 1998-04-03 | Active | |
| DONE-RITE EXTERIOR SERVICES | — | FM0552752 | 2011-03-23 | Active | |
| DONE-RITE EXTERIORS | — | FM0149670 | 1993-09-15 | Active | |
| DONE-RITE FLOOR INSTALLATIONS LTD. | — | BC0140797 | 1975-09-05 | Inactive | |
| DONE-RITE JANITORIAL LTD. | — | BC0733531 | 2005-08-26 | Active | |
| DONE-RITE MOVING & STG. (1988) LTD. | — | A0028592 | 1988-11-22 | Inactive | |
| DONE-RITE MOVING & STORAGE LTD. | — | A0013152 | 1977-05-09 | Inactive | |
| DONE-RITE PAINTING | — | FM0127091 | 1992-02-13 | Active | |
| DONE-RITE UPHOLSTERY LTD. | — | BC0097165 | 1970-12-09 | Inactive | |
| DONE.CA WEBSITE DESIGN AND SERVICES | — | FM0470243 | 2008-02-11 | Active | |
| DONE18 HOLDINGS LTD. | — | BC1141774 | 2017-11-17 | Active | |
| DONE4 PRODUCTIONS INC. | — | BC1314252 | 2021-07-07 | Active | |
| DONEAN INTERNATIONAL ECONOMIC DEVELOPMENT INCORPORATED | — | BC0392777 | 1990-08-30 | Inactive | |
| DONEAN MARKETING CO | — | FM0036373 | 1981-01-26 | Active | |
| DONEAN MARKETING INC. | — | BC0272205 | 1983-12-19 | Inactive | |
| DONEBYASHLEY HAIR CO. LTD. | — | BC1525445 | 2025-02-06 | Active | |
| DONECCA SERVICES | — | FM0546451 | 2011-01-07 | Active | |
| DONECO ELECTRIC | — | FM0067513 | 1986-02-28 | Active | |
| DONECO ELECTRIC LIMITED | — | BC0310488 | 1986-06-11 | Inactive | |
| DONECO HOLDINGS INC. | — | BC0864594 | 2009-10-23 | Active | |
| DONECY HOMES | — | FM0001237 | 1967-06-28 | Active | |
| DONEDDY CONSTRUCTION | — | FM0091413 | 1988-10-18 | Active | |
| DONEDEN HOLDINGS LTD. | — | BC0977909 | 2013-08-15 | Inactive | |
| DONEGAL ACCEPTANCE LTD. | — | BC0266726 | 1983-07-19 | Inactive | |
| DONEGAL CONSTRUCTION LTD. | — | BC0191085 | 1979-05-17 | Inactive | |
| DONEGAL CONSTRUCTION LTD. | — | BC0306479 | 1986-03-21 | Inactive | |
| DONEGAL DEMONSTRATORS | — | FM0244893 | 1998-08-18 | Active | |
| DONEGAL DEVELOPMENTS LTD. | — | BC0073085 | 1967-02-24 | Active | |
| DONEGAL ENTERPRISES LIMITED | — | BC0055400 | — | Inactive | |
| DONEGAL ENTERPRISES LTD. | — | BC0169259 | 1977-12-19 | Inactive | |
| DONEGAL HILLS ENTERPRISES LTD. | — | BC0211413 | 1980-06-13 | Inactive | |
| DONEGAL HOLDINGS LTD. | — | BC0302822 | 1986-01-09 | Inactive | |
| DONEGAL HOLDINGS LTD. | — | BC0451947 | 1993-07-30 | Inactive | |
| DONEGAL INVESTMENT COMPANY LTD. | — | BC0044503 | — | Inactive | |
| DONEGAL MANAGEMENT INC. | — | BC0230635 | 1981-03-27 | Active | |
| DONEGAL VENTURES LTD. | — | BC0570581 | 1998-08-21 | Inactive | |
| DONEGAL'S CANADA FOODS | — | FM0404957 | 2005-08-21 | Active | |
| DONEGAL'S IRISH HOUSE INC. | — | BC1023970 | 2015-01-06 | Inactive | |
| DONEGAL'S LAND CO. LTD. | — | BC0685097 | 2004-01-13 | Inactive | |
| DONEGAL'S PUB (SURREY) LTD. | — | BC0660543 | 2002-12-20 | Inactive | |
| DONEGAL'S U-BREW & VINTNERS | — | FM0268500 | 1999-10-18 | Active | |
| DONEGAN TRADING LTD. | — | BC0724170 | 2005-05-10 | Inactive | |
| DONEGORE ENTERPRISES LTD. | — | BC0103211 | 1971-09-30 | Inactive | |
| DONEL CONSTRUCTION LTD. | — | BC0189002 | 1979-04-03 | Inactive | |
| DONEL CONSULTANTS LTD. | — | BC0590168 | 1999-08-05 | Inactive | |
| DONEL DEVELOPMENTS AND REALTY LTD. | — | BC0109420 | 1972-05-31 | Inactive | |
| DONEL VENTURES LTD. | — | BC0595379 | 1999-11-09 | Inactive | |
| DONELAINE HOLDINGS LTD. | — | BC0225343 | 1981-01-27 | Inactive | |
| DONELEY HOLDINGS LTD. | — | BC0232286 | 1981-04-15 | Inactive | |
| DONELL HOLDINGS LTD. | — | BC0099158 | 1971-03-22 | Inactive | |
| DONELL HOLDINGS LTD. | — | BC0902522 | 2011-02-09 | Active | |
| DONELLA BACKHOE CONTRACTING LTD. | — | BC0171333 | 1978-02-16 | Inactive | |
| DONELLA PLACE HOLDINGS LTD. | — | BC0153649 | 1976-10-12 | Inactive | |
| DONELLE'S SILVERFINCH JEWELRY DESIGN | — | FM0754896 | 2018-08-17 | Active | |
| DONELLI INVESTMENT GROUP | — | FM0314993 | 2002-01-09 | Active | |
| DONELLI MOTORSPORTS | — | FM0715832 | 2017-04-13 | Active | |
| DONELVA ENTERPRISES LTD. | — | BC0144038 | 1975-12-31 | Inactive | |
| DONELY-GLEN PROPERTIES LTD. | — | BC0155088 | 1976-11-23 | Inactive | |
| DONEN COMMUNICATIONS INC. | — | BC0533030 | 1996-12-16 | Inactive | |
| DONEN EXPLORATIONS LTD. | — | BC0118813 | — | Inactive | |
| DONENT CONSTRUCTION | — | FM0037381 | 1981-04-17 | Active | |
| DONEQUICK CONSTRUCTION | — | FM0585585 | 2012-06-12 | Active | |
| DONER 365 LTD | — | A0121569 | 2022-02-01 | Active | |
| DONER CANADA INC. | — | A0046532 | 1998-01-27 | Inactive | |
| DONER DISTRIBUTION | — | FM0099809 | 1989-08-04 | Active | |
| DONER KEBAB LTD. | — | BC0304991 | 1986-02-21 | Inactive | |
| DONERA HELICOPTER MAINTENANCE | — | FM0111934 | 1990-10-04 | Active | |
| DONERAILE HOLDINGS INC. | — | BC0783770 | 2007-02-23 | Inactive | |
| DONERAILE HOLDINGS INC. | — | BC1128171 | 2017-08-01 | Active | |
| DONERIC ENTERPRISES LTD. | — | BC0375631 | 1989-11-02 | Inactive | |
| DONERIGHT CUSTODIAL SERVICES | — | FM0276206 | 2000-03-10 | Active | |
| DONERIGHT EXTERIORS | — | FM0619409 | 2013-10-25 | Active | |
| DONERIGHT HANDYMAN & RENOVATIONS | — | FM1100683 | 2026-03-11 | Active | |
| DONERIGHT LANDSCAPING | — | FM1042208 | 2024-03-27 | Active | |
| DONERIGHT PAINTING LIMITED | — | BC0065649 | — | Inactive | |
| DONERIGHT PLUMBING | — | FM0457192 | 2007-08-07 | Active | |
| DONERIGHT PLUMBING & GAS LTD. | — | BC0810080 | 2007-12-03 | Active | |
| DONERIGHT TECHNOLOGIES INC. | — | BC1586466 | 2026-04-15 | Active | |
| DONERIGHT WATERPROOFING | — | FM0780982 | 2019-06-25 | Active | |
| DONERIGHT1ST RENOVATIONS | — | FM0689407 | 2016-05-18 | Active | |
| DONERITE BACKHOE SERVICES | — | FM0383084 | 2004-10-25 | Active | |
| DONERITE BACKHOE SERVICES LTD. | — | BC0772997 | 2006-10-27 | Active | |
| DONERITE CLEANING SERVICE | — | FM0095261 | 1989-03-02 | Active | |
| DONERITE ELECTRICAL SYSTEMS | — | FM0419429 | 2006-03-14 | Active | |
| DONERITE HANDYMAN SERVICES | — | FM0734797 | 2017-12-07 | Active | |
| DONERITE MOBILE STEAM CLEANING SERVICES | — | FM0441540 | 2007-01-16 | Active | |
| DONERITE OVERHEAD DOOR SERVICE | — | FM0658748 | 2015-04-23 | Active | |
| DONERITE PROFESSIONAL HOUSEKEEPING REFERRAL SERVICE | — | FM0334053 | 2002-11-06 | Active | |
| DONERMAC APPLIANCE TECHNOLOGY INC. | — | BC0649278 | 2002-06-11 | Inactive | |
| DONEROL DEVELOPMENT CORPORATION | — | BC0216654 | 1980-09-22 | Inactive | |
| DONES DEVELOPMENTS INC. | — | BC0728716 | 2005-06-29 | Inactive | |
| DONESCO HOLDINGS LTD. | — | BC0190635 | 1979-05-08 | Inactive | |
| DONESLEY'S SERVICE CENTRE | — | FM0011849 | 1973-04-11 | Active | |
| DONESLEY'S SERVICE CENTRE LTD. | — | BC0127522 | 1974-04-30 | Inactive | |
| DONETONY ENTERPRISE LTD. | — | BC0283362 | 1984-10-03 | Inactive | |
| DONETZ HOLDINGS LTD. | — | BC0282541 | 1984-09-12 | Inactive | |
| DONEVE ENTERPRISES | — | FM0290534 | 2000-11-02 | Active | |
| DONEWELL CONSTRUCTION | — | FM0180762 | 1995-06-07 | Active | |
| DONEWELL DRILLING | — | FM0769706 | 2019-03-01 | Active | |
| DONEWHITE CONSTRUCTION | — | FM0582164 | 2012-04-29 | Active | |
| DONEX HOLDINGS INC. | — | BC1281030 | 2020-12-23 | Inactive | |
| DONEX PHARMACY & DEPARTMENT STORE (2001) LTD. | — | BC0610420 | 2000-07-10 | Active | |
| DONEX PHARMACY & DEPARTMENT STORE LTD. | — | BC0036524 | 1956-05-30 | Inactive | |
| DONFRED HOLDINGS LTD. | — | BC0077449 | 1968-01-04 | Inactive | |
| DONFREY LIU FINANCIAL SERVICES LTD. | — | BC0864606 | 2009-10-24 | Active | |
| DONG & DAY MEDIA INC. | — | BC0924407 | 2011-11-04 | Inactive | |
| DONG - A SHIP SUPPLIES TRADING LTD. | — | BC0503229 | 1995-08-28 | Inactive | |
| DONG - PHUONG CONTRACTORS | — | FM0059744 | 1985-03-14 | Active | |
| DONG A PUBLISHING | — | FM0435811 | 2006-10-18 | Active | |
| DONG A PUBLISHING | — | FM0316702 | 2002-02-06 | Active | |
| DONG AH CANADA DEVELOPMENT CORP. | — | BC0518090 | 1996-04-24 | Inactive | |
| DONG AH CONSTRUCTION INDUSTRIAL CO. LTD. | — | A0044903 | 1997-04-18 | Inactive | |
| DONG BANG ENTERPRISES (CANADA) LTD. | — | BC0702045 | 2004-08-16 | Inactive | |
| DONG BANG ENTERPRISES (CANADA) LTD. | — | BC0528662 | 1996-10-08 | Inactive | |
| DONG BANG ENTERPRISES LTD. | — | BC0210961 | 1980-06-05 | Inactive | |
| DONG BAO INTERNATIONAL INVESTMENTS (CANADA) INC. | — | BC0502995 | 1995-08-23 | Inactive | |
| DONG CHANG CANADA LTD. | — | BC0478685 | 1994-08-18 | Inactive | |
| DONG CHEN TRADING CO. | — | FM0217652 | 1997-04-08 | Active | |
| DONG CHHIM DEMOLITION LTD. | — | BC0881338 | 2010-05-18 | Inactive | |
| DONG CHONG COMPANY LTD. | — | BC0113730 | 1972-11-27 | Inactive | |
| DONG CHONG COMPANY LTD., | — | BC0031165 | — | Inactive | |
| DONG DI LI PERSONAL REAL ESTATE CORPORATION | — | BC1192414 | 2019-01-01 | Active | |
| DONG DI XING (VANCOUVER) INTERNATIONAL TRADING LTD. | — | BC1129688 | 2017-08-09 | Active | |
| DONG DING ENTERPRISES LTD. | — | BC0840203 | 2008-11-26 | Inactive | |
| DONG DONG MALL LTD. | — | BC1297253 | 2021-03-30 | Inactive | |
| DONG EDWIN INVESTMENT LTD. | — | BC1124981 | 2017-06-29 | Active | |
| DONG ENTERPRISES LTD. | — | BC0141381 | 1975-09-25 | Inactive | |
| DONG EUN ENTERPRISES LTD. | — | BC0767314 | 2006-08-29 | Active | |
| DONG FANG HONG MARKETING INC. | — | BC1168105 | 2018-06-13 | Inactive | |
| DONG FANG INTERNATIONAL ENTERPRISES CO. LTD. | — | BC0643829 | 2002-03-12 | Inactive | |
| DONG FANG INVESTMENTS CORP. | — | BC0311029 | 1986-06-23 | Inactive | |
| DONG FANG PROPERTY LTD. | — | BC1151335 | 2018-02-01 | Active | |
| DONG FANG RESTAURANT LTD. | — | BC0835323 | 2008-09-18 | Inactive | |
| DONG GROUP LTD. | — | BC1532642 | 2025-03-24 | Active | |
| DONG GUANG GREEN FARMING CORPORATION | — | BC1167646 | 2018-06-09 | Inactive | |
| DONG GUANG GROUP HOLDINGS CORPORATION | — | BC1167905 | 2018-06-12 | Inactive | |
| DONG GUANG INVESTMENT LTD. | — | BC1039988 | 2015-06-16 | Active | |
| DONG HAI CONSULTING CO. | — | FM0518327 | 2009-12-28 | Active | |
| DONG HAN FIT | — | FM0806745 | 2020-05-21 | Active | |
| DONG HING BONG TRADING | — | FM0392348 | 2005-03-10 | Active | |
| DONG HOLDINGS LTD. | — | BC0822446 | 2008-04-16 | Inactive | |
| DONG HUONG VIETNAMESE RESTAURANT | — | FM0194704 | 1996-02-26 | Active | |
| DONG HWAN NATURAL WATER CO. | — | FM0684743 | 2016-03-25 | Active | |
| DONG HYUN CUSTOM HOUSING CORPORATION LTD. | — | BC0604775 | 2000-04-05 | Inactive | |
| DONG INVESTMENTS LTD. | — | BC0248840 | 1982-02-16 | Inactive | |
| DONG JIA TRADING CO. LTD. | — | BC0703493 | 2004-09-03 | Inactive | |
| DONG JIN ENTERPRISES LTD. | — | BC0550458 | 1997-09-18 | Inactive | |
| DONG KHANH RESTAURANT | — | FM0282386 | 2000-06-12 | Active | |
| DONG KIM CONSULTING ULC | — | BC1270529 | 2020-10-19 | Active | |
| DONG LAI SHUN RESTAURANT LTD. | — | BC1000318 | 2014-04-24 | Active | |
| DONG LI CONSTRUCTION LTD. | — | BC1032849 | 2015-04-08 | Active | |