| DOMINION MARKET CO. LIMITED | — | A0000728 | — | Inactive | |
| DOMINION MARKETING INC. | — | BC0201182 | 1979-12-07 | Inactive | |
| DOMINION MASONRY (1993) LTD. | — | BC0449154 | 1993-06-16 | Inactive | |
| DOMINION MASONRY LTD. | — | BC0321372 | 1987-02-05 | Active | |
| DOMINION MATCH COMPANY LIMITED | — | BC0000736 | — | Inactive | |
| DOMINION MECHANICAL 2006 INC. | — | BC0748446 | 2006-02-09 | Inactive | |
| DOMINION MECHANICAL LTD. | — | BC0322385 | 1987-02-25 | Inactive | |
| DOMINION MECHANICAL SERVICES (2010) INC. | — | BC0881213 | 2010-05-17 | Inactive | |
| DOMINION MEDIA CORP. | — | BC1389463 | 2022-12-01 | Active | |
| DOMINION MEDIA SERVICES INC. | — | BC0619674 | 2000-12-21 | Inactive | |
| DOMINION MEDICAL PRODUCTS INC. | — | BC0327784 | 1987-06-08 | Inactive | |
| DOMINION MEDICAL SUPPLIES INC. | — | BC0665287 | 2003-03-05 | Inactive | |
| DOMINION MEDICAL SUPPLY | — | FM0326312 | 2002-07-04 | Active | |
| DOMINION MEDICINES LIMITED | — | BC0004475 | — | Inactive | |
| DOMINION MERCANTILE CORPORATION | — | BC0488586 | 1995-01-19 | Inactive | |
| DOMINION MET-ALL DISTRIBUTORS (1968) LTD. | — | BC0082927 | 1968-11-18 | Inactive | |
| DOMINION METAL POLISHING CO. | — | FM0024909 | 1977-12-02 | Inactive | |
| DOMINION METALS INVESTMENT COMPANY LIMITED (NON-PERSONAL LIABILITY) | — | BC0009150 | — | Inactive | |
| DOMINION MIDWAY LIMITED | — | BC0000810 | — | Inactive | |
| DOMINION MILLS LIMITED | — | BC0007516 | — | Inactive | |
| DOMINION MINERAL DEVELOPMENT COMPANY LIMITED (NON-PERSONAL LIABILITY) | — | BC0010761 | — | Inactive | |
| DOMINION MINERAL INDUSTRIES | — | FM0157244 | 1994-03-11 | Active | |
| DOMINION MINERAL INDUSTRIES INC. | — | BC0474675 | 1994-06-10 | Inactive | |
| DOMINION MINERS AND PROSPECTORS CLUB LIMITED | — | BC0004943 | — | Inactive | |
| DOMINION MINES LIMITED | — | QB0000338 | — | Inactive | |
| DOMINION MINES LIMITED | — | BC0009979 | — | Inactive | |
| DOMINION MINES LIMITED (NON-PERSONAL LIABILITY) | — | BC0006212 | — | Inactive | |
| DOMINION MINING BROKERS LIMITED | — | BC0013975 | — | Inactive | |
| DOMINION MINING DEVELOPMENT AND AGENCY COMPANY LIMITED | — | LIC0000070 | — | Inactive | |
| DOMINION MOBILE HOME COMPANY LTD. | — | BC0071296 | — | Inactive | |
| DOMINION MORTGAGE & INVESTMENT CORPORATION LIMITED | — | BC0000422 | — | Inactive | |
| DOMINION MORTGAGE CORPORATION | — | BC0531967 | 1996-11-28 | Inactive | |
| DOMINION MOTOR CAR COMPANY LIMITED | — | QE0003010 | — | Inactive | |
| DOMINION MOTORCARS | — | FM0355259 | 2003-09-12 | Active | |
| DOMINION MOTORCARS INC. | — | BC0679842 | 2003-10-24 | Inactive | |
| DOMINION MOTORS LIMITED | — | BC0005575 | — | Inactive | |
| DOMINION MOTORS LIMITED | — | BC0010508 | — | Inactive | |
| DOMINION MOTORS LTD. | — | BC0039303 | 1957-07-04 | Inactive | |
| DOMINION MOTORSPORT | — | FM0458432 | 2007-08-24 | Active | |
| DOMINION MOTORSPORT (BC) INC. | — | BC0749674 | 2006-02-23 | Inactive | |
| DOMINION MOTORSPORT INC. | — | A0066716 | 2005-12-22 | Inactive | |
| DOMINION MOUNTAIN RESORT LTD. | — | BC0089516 | — | Inactive | |
| DOMINION MOUNTAIN RESORTS LTD. | — | BC0249792 | 1982-03-17 | Inactive | |
| DOMINION NATIONAL CONSOLIDATED INDUSTRIES LIMITED | — | BC0008319 | — | Inactive | |
| DOMINION NATURAL GAS LTD. | — | BC0038351 | — | Inactive | |
| DOMINION NAVIGATION COMPANY LIMITED | — | BC0008534 | — | Inactive | |
| DOMINION NEON LEASING LTD. | — | BC0180785 | 1978-09-28 | Inactive | |
| DOMINION NEON PRODUCTS OF B. C. LTD. | — | BC0117446 | 1973-04-09 | Inactive | |
| DOMINION NEON PRODUCTS OF B.C. LTD. | — | BC0512149 | 1996-01-19 | Active | |
| DOMINION NEON PRODUCTS SIGN & SERVICE LTD. | — | BC1382512 | 2022-10-13 | Active | |
| DOMINION NICKEL MINES LTD. (N.P.L.) | — | BC0080447 | 1968-06-24 | Inactive | |
| DOMINION OCEAN HARVESTORS LTD. | — | BC0852607 | 2009-05-25 | Inactive | |
| DOMINION OF CANADA ACADEMY SOCIETY | — | S0083815 | 2025-11-09 | Active | |
| DOMINION OF CANADA GUARANTEE AND ACCIDENT INSURANCE COMPANY | — | LIC0000310 | — | Inactive | |
| DOMINION OF CANADA INVESTMENT AND DEBENTURE COMPANY LIMITED | — | A0000370 | — | Inactive | |
| DOMINION OF CANADA REALTY COMPANY LIMITED | — | A0000640 | — | Inactive | |
| DOMINION OIL COMPANY LIMITED | — | BC0012868 | — | Inactive | |
| DOMINION OIL LIMITED | — | BC0019144 | 1945-03-02 | Inactive | |
| DOMINION OIL SMELTING COMPANY LIMITED (NON-PERSONAL LIABILITY) | — | QE0002621 | — | Inactive | |
| DOMINION OILFIELDS SUPPLY COMPANY LIMITED | — | A0005295 | 1960-01-22 | Inactive | |
| DOMINION OPTICAL LTD. | — | BC0135711 | 1975-03-18 | Inactive | |
| DOMINION ORE CONCENTRATING COMPANY LIMITED | — | BC0009176 | — | Inactive | |
| DOMINION ORE RESEARCH COMPANY LIMITED | — | BC0012567 | — | Inactive | |
| DOMINION ORGANICS | — | FM0509296 | 2009-08-19 | Active | |
| DOMINION ORGANICS | — | FM0391942 | 2005-03-05 | Active | |
| DOMINION ORGANICS CANADA LTD. | — | BC1025180 | 2015-01-19 | Active | |
| DOMINION OXYGEN COMPANY LIMITED | — | A0002842 | — | Inactive | |
| DOMINION OYSTER & FISH CO. LIMITED | — | BC0014068 | — | Inactive | |
| DOMINION PACIFIC CAPITAL GROUP INC. | — | A0064401 | 2005-02-17 | Inactive | |
| DOMINION PACIFIC DEVELOPMENTS LTD. | — | BC0418466 | 1992-01-14 | Active | |
| DOMINION PACIFIC EQUITIES LTD. | — | BC1497800 | 2024-08-20 | Active | |
| DOMINION PACIFIC FINANCIAL SERVICES INC. | — | BC0749831 | 2006-02-24 | Inactive | |
| DOMINION PACIFIC HOLDINGS INC. | — | A0067554 | 2006-03-31 | Inactive | |
| DOMINION PACIFIC LUMBER COMPANY LIMITED | — | A0000320 | — | Inactive | |
| DOMINION PACIFIC MANAGEMENT GROUP INC. | — | A0071293 | 2007-05-25 | Inactive | |
| DOMINION PACIFIC MEDICAL GROUP INC. | — | BC0609984 | 2000-06-30 | Inactive | |
| DOMINION PACIFIC MINERALS INC. | — | BC0257312 | 1982-11-30 | Inactive | |
| DOMINION PACIFIC REAL ESTATE (2005) INC. | — | BC0727035 | 2005-06-10 | Inactive | |
| DOMINION PACIFIC TRAVEL (CANADA) LTD. | — | BC0326795 | 1987-05-15 | Inactive | |
| DOMINION PACIFIC VENTURES INC. | — | A0065319 | 2005-06-17 | Inactive | |
| DOMINION PACIFIC VENTURES LTD. | — | BC0419662 | 1992-02-07 | Inactive | |
| DOMINION PACKING COMPANY LIMITED | — | BC0010266 | — | Inactive | |
| DOMINION PAINT WORKS LIMITED | — | A0000684 | — | Inactive | |
| DOMINION PAINTING | — | FM0540155 | 2010-10-06 | Active | |
| DOMINION PAINTING AND COATINGS | — | FM0546774 | 2011-01-11 | Active | |
| DOMINION PALLETS LIMITED | — | BC0068352 | — | Inactive | |
| DOMINION PAPER BOX COMPANY (LIMITED) | — | A0010098 | — | Inactive | |
| DOMINION PARK COMPANY LIMITED | — | BC0002222 | — | Inactive | |
| DOMINION PARKING INC. | — | BC0165549 | 1977-09-08 | Inactive | |
| DOMINION PARTICIPATING COMPANY LIMITED | — | BC0002322 | — | Inactive | |
| DOMINION PERMANENT LOAN COMPANY | — | LIC0000067 | — | Inactive | |
| DOMINION PEST CONTROL CO. LTD. | — | BC0156438 | 1977-01-05 | Inactive | |
| DOMINION PETROLEUM DISTRIBUTORS LTD. | — | C0169405 | — | Inactive | |
| DOMINION PETROLEUM LIMITED (NON-PERSONAL LIABILITY) | — | BC0004037 | — | Inactive | |
| DOMINION PHOTO CO. | — | FM0003396 | 1968-10-23 | Active | |
| DOMINION PIONEER RESOURCES LTD. | — | BC0352624 | 1988-10-07 | Inactive | |
| DOMINION PISTONS LIMITED | — | BC0006374 | — | Inactive | |
| DOMINION PIZZA, STEAK AND LOBSTER HOUSE LTD. | — | BC0120233 | 1973-07-18 | Inactive | |
| DOMINION PLACERS (YUKON) LTD. | — | A0027274 | 1988-02-25 | Inactive | |
| DOMINION PLACERS YUKON LTD. | — | A0017120 | — | Inactive | |
| DOMINION PLACERS YUKON LTD. | — | C0317945 | — | Inactive | |
| DOMINION PLANNING GROUP INC. | — | BC0268312 | 1983-08-30 | Inactive | |
| DOMINION PLANT LABS INC. | — | A0055690 | 2001-11-08 | Inactive | |
| DOMINION PLUMBING | — | FM0892537 | 2022-10-18 | Active | |
| DOMINION PLUMBING & HEATING (1978) LTD. | — | BC0172963 | 1978-03-28 | Inactive | |
| DOMINION POLICE GAZETTE | — | FM0004867 | 1969-09-22 | Active | |
| DOMINION POLY PRODUCTS LTD. | — | BC0291226 | 1985-04-17 | Inactive | |
| DOMINION POND TAMPON COMPANY LIMITED | — | BC0001674 | — | Inactive | |
| DOMINION PONTIAC BUICK GMC | — | FM0067208 | 1986-02-21 | Active | |
| DOMINION PONTIAC BUICK LIMITED | — | BC0343137 | 1988-03-31 | Inactive | |
| DOMINION POOLS | — | FM0039593 | 1981-10-14 | Active | |
| DOMINION POOLS LTD. | — | BC0267468 | 1983-08-08 | Inactive | |
| DOMINION PORTABLE SECURITY FENCING LTD. | — | BC0264767 | 1983-05-31 | Inactive | |
| DOMINION POS SYSTEMS LTD. | — | BC0627044 | 2001-05-04 | Inactive | |
| DOMINION POULTRY EXPERTS LIMITED | — | BC0005603 | — | Inactive | |
| DOMINION POWDER COMPANY LIMITED | — | BC0001726 | — | Inactive | |
| DOMINION POWER WASHING | — | FM0297510 | 2001-03-12 | Active | |
| DOMINION POWER WASHING INC. | — | BC0768798 | 2006-09-13 | Inactive | |
| DOMINION POWER WASHING INC. | — | BC1436665 | 2023-09-01 | Active | |
| DOMINION PRECAST LTD. | — | BC0312120 | 1986-07-17 | Inactive | |
| DOMINION PRECIOUS METAL INC. | — | BC0612329 | 2000-08-16 | Inactive | |
| DOMINION PRINTERS | — | FM0057379 | 1984-11-15 | Active | |
| DOMINION PRINTERS LTD. | — | BC0227632 | 1981-02-24 | Inactive | |
| DOMINION PRINTING INK & COLOR COMPANY LIMITED | — | A0003020 | — | Inactive | |
| DOMINION PROCESSING LTD. | — | BC0808611 | 2007-11-16 | Inactive | |
| DOMINION PRODUCE COMPANY LIMITED | — | BC0008974 | — | Inactive | |
| DOMINION PRODUCTS COMPANY LIMITED | — | BC0011977 | — | Inactive | |
| DOMINION PRODUCTS COMPANY LIMITED | — | A0004571 | — | Inactive | |
| DOMINION PRODUCTS LIMITED | — | BC0003118 | — | Inactive | |
| DOMINION PROFESSIONAL SERVICES | — | FM0459519 | 2007-09-10 | Active | |
| DOMINION PROFESSIONAL SERVICES | — | FM0384602 | 2004-11-16 | Inactive | |
| DOMINION PROPERTIES | — | FM0199039 | 1996-05-08 | Active | |
| DOMINION PROPERTIES CORP. | — | A0126353 | 2023-02-06 | Active | |
| DOMINION PROPERTIES LTD. | — | BC0117340 | 1973-04-05 | Inactive | |
| DOMINION PROPERTY MANAGEMENT LTD. | — | BC1507003 | 2024-10-16 | Active | |
| DOMINION PUBLICITY ASSOCIATION LIMITED | — | BC0000302 | — | Inactive | |
| DOMINION PUBLISHING CO. LIMITED | — | BC0007979 | — | Inactive | |
| DOMINION RADIO & T.V. | — | FM0030042 | 1979-02-22 | Active | |
| DOMINION RADIO COMPANY LIMITED | — | BC0006329 | — | Inactive | |
| DOMINION RANCH | — | FM1071411 | 2025-03-24 | Active | |
| DOMINION RANCHES LTD. | — | A0025479 | — | Inactive | |
| DOMINION RATHOLE DRILLING & SERVICE LTD. | — | BC0143185 | 1975-11-28 | Inactive | |
| DOMINION RAW MATERIALS LIMITED | — | A0131994 | 2024-04-19 | Active | |
| DOMINION RAW MATERIALS LIMITED | — | BC0258038 | 1982-12-21 | Inactive | |
| DOMINION RD URBAN HOMESTEAD | — | FM0823517 | 2020-11-12 | Active | |
| DOMINION REAL ESTATE EXCHANGE LIMITED | — | QE0001816 | — | Inactive | |
| DOMINION REALTY CORPORATION LTD. | — | BC0075459 | 1967-08-04 | Inactive | |
| DOMINION RECYCLING CO. | — | FM0241021 | 1998-06-08 | Active | |
| DOMINION REFINERS LIMITED | — | BC0007022 | — | Inactive | |
| DOMINION REFUNDS INC. | — | BC0684050 | 2003-12-24 | Inactive | |
| DOMINION REGISTER COMPANY LIMITED | — | A0000223 | — | Inactive | |
| DOMINION REINFORCING LTD. | — | BC0041435 | — | Inactive | |
| DOMINION REIT PROPERTIES (CDN) LIMITED PARTNERSHIP | — | LP0664124 | 2015-06-25 | Active | |
| DOMINION REIT PROPERTIES (CDN/US) LIMITED PARTNERSHIP | — | LP0664121 | 2015-06-25 | Active | |
| DOMINION REIT PROPERTIES (GP) LTD. | — | BC1018996 | 2014-11-14 | Active | |
| DOMINION REIT PROPERTIES SERVICES LTD. | — | BC1023032 | 2014-12-23 | Active | |
| DOMINION RESIDENTIAL TRANSFORMATIONS | — | FM0483089 | 2008-07-29 | Active | |
| DOMINION RESOURCE UNDERWRITING MANAGERS LTD. | — | BC0208595 | 1980-04-23 | Inactive | |
| DOMINION RESTAURANT LTD. | — | BC0043645 | — | Inactive | |
| DOMINION REVIEW | — | FM1016852 | 2023-05-17 | Active | |
| DOMINION ROOFING (2012) LTD. | — | BC0949529 | 2012-09-05 | Inactive | |
| DOMINION ROOFING LTD. | — | BC0420993 | 1992-02-24 | Inactive | |
| DOMINION RUBBER COMPANY (PACIFIC) LIMITED | — | A0000928 | — | Inactive | |
| DOMINION RUSTPROOFING COMPANY LIMITED | — | BC0015026 | — | Inactive | |
| DOMINION SAFE WORKS LIMITED | — | BC0001137 | — | Inactive | |
| DOMINION SAFETY CONSULTING | — | FM0370767 | 2004-04-26 | Active | |
| DOMINION SALES & MARKETING SERVICES INCORPORATED | — | BC0545310 | 1997-06-20 | Active | |
| DOMINION SALES AND MARKETING SERVICES | — | FM0212655 | 1997-01-14 | Active | |
| DOMINION SALES COMPANY LIMITED | — | BC0010911 | — | Inactive | |
| DOMINION SALVAGE AND JOBBING COMPANY LIMITED | — | BC0009091 | — | Inactive | |
| DOMINION SALVAGE COMPANY LIMITED | — | BC0004051 | — | Inactive | |
| DOMINION SALVAGE LTD. | — | BC0080279 | 1968-06-13 | Inactive | |
| DOMINION SASH & DOOR CO. LTD. | — | BC0021052 | 1946-08-17 | Inactive | |
| DOMINION SASH AND DOOR COMPANY LIMITED | — | BC0000499 | — | Inactive | |
| DOMINION SAW MILL COMPANY LIMITED | — | QB0000005 | — | Inactive | |
| DOMINION SAW MILLS AND LUMBER LIMITED | — | QE0003058 | — | Inactive | |
| DOMINION SCHOOL PICTURES | — | FM0000693 | 1967-02-28 | Active | |
| DOMINION SCREENS | — | FM0400268 | 2005-06-15 | Active | |
| DOMINION SECURITIES AMES LIMITED DOMINION SECURITIES AMES LIMITEE | — | A0018682 | — | Inactive | |
| DOMINION SECURITIES INC. | — | A0022158 | — | Inactive | |
| DOMINION SECURITIES LIMITED - DOMINION SECURITIES LIMITEE | — | A0003208 | — | Inactive | |
| DOMINION SECURITIES LIMITED DOMINION SECURITIES LIMITEE | — | A0018102 | — | Inactive | |
| DOMINION SECURITY | — | FM0282837 | 2000-06-16 | Active | |
| DOMINION SECURITY & INVESTIGATIONS | — | FM0094205 | 1989-01-26 | Active | |
| DOMINION SECURITY & INVESTIGATIONS | — | FM0080585 | 1987-08-07 | Inactive | |
| DOMINION SECURITY CO. LIMITED | — | BC0000446 | — | Inactive | |
| DOMINION SECURITY INC. | — | BC0864232 | 2009-10-20 | Active | |
| DOMINION SECURITY SERVICES | — | FM0020542 | 1976-03-26 | Active | |
| DOMINION SELF-PARK SYSTEMS LTD. | — | BC0443442 | 1993-03-23 | Active | |
| DOMINION SHALE BRICK AND SEWER PIPE COMPANY LIMITED | — | BC0000804 | — | Inactive | |
| DOMINION SHELTER CORPORATION | — | BC0689897 | 2004-03-17 | Inactive | |
| DOMINION SHINGLE & CEDAR COMPANY LIMITED | — | BC0003168 | — | Inactive | |
| DOMINION SHINGLE MANUFACTURING COMPANY LIMITED | — | QE0000689 | — | Inactive | |
| DOMINION SHIP SUPPLY COMPANY LIMITED | — | BC0007606 | — | Inactive | |
| DOMINION SHIPBUILDING ENGINEERING & DRYDOCK COMPANY LIMITED | — | BC0002578 | — | Inactive | |
| DOMINION SHIPPING COMPANY LIMITED | — | BC0007910 | — | Inactive | |
| DOMINION SHIPPING COMPANY LIMITED | — | BC0019064 | 1945-01-26 | Inactive | |
| DOMINION SIDING & SUPPLY (VERNON) LTD. | — | BC0149770 | 1976-06-11 | Inactive | |
| DOMINION SIDING & SUPPLY CO. LTD. | — | BC0184336 | 1978-12-20 | Inactive | |
| DOMINION SILO (1975) LTD. | — | A0020447 | — | Inactive | |