| DIAMOND MVMNT CONSULTING INC. | — | BC1177722 | 2018-08-29 | Active | |
| DIAMOND N CONTRACTING LTD. | — | BC0713443 | 2005-01-11 | Active | |
| DIAMOND NAILS | — | FM0355432 | 2003-09-15 | Inactive | |
| DIAMOND NAILS | — | FM0695116 | 2016-08-04 | Active | |
| DIAMOND NAILS & SPA (2020) | — | FM0808761 | 2020-06-19 | Active | |
| DIAMOND NAILS & SPA INC. | — | BC0732823 | 2005-08-18 | Inactive | |
| DIAMOND NAILS & SPA LTD. | — | BC1532467 | 2025-03-22 | Active | |
| DIAMOND NAILS AND SPA | — | FM0597460 | 2012-12-17 | Active | |
| DIAMOND NEON (MANUFACTURING) LIMITED | — | BC0296020 | 1985-07-31 | Inactive | |
| DIAMOND NET CO. | — | FM0146463 | 1993-07-07 | Active | |
| DIAMOND NET CO. | — | FM0128921 | 1992-04-06 | Inactive | |
| DIAMOND NET COMPANY | — | FM0138834 | 1993-01-15 | Active | |
| DIAMOND NET INC. | — | BC1029695 | 2015-03-06 | Active | |
| DIAMOND NET REPAIRS | — | FM0567226 | 2011-10-04 | Active | |
| DIAMOND OASIS NAIL SPA | — | FM0554114 | 2011-04-08 | Active | |
| DIAMOND OFFICE PRODUCTS LTD. | — | BC0294795 | 1985-07-03 | Inactive | |
| DIAMOND OILFIELD ENTERPRISES LTD. | — | BC0579698 | 1999-02-08 | Inactive | |
| DIAMOND OILS LIMITED | — | BC0028075 | — | Inactive | |
| DIAMOND OKANAGAN EVENT PLANNING | — | FM0356822 | 2003-10-06 | Active | |
| DIAMOND OPPORTUNITIES | — | FM0182072 | 1995-06-28 | Active | |
| DIAMOND OPTICAL (VICTORIA) LTD. | — | BC0432843 | 1992-09-24 | Inactive | |
| DIAMOND OYSTER SEED COMPANY LTD. | — | BC0070810 | 1966-08-22 | Inactive | |
| DIAMOND P CONSULTING | — | FM0471251 | 2008-02-25 | Active | |
| DIAMOND P DRILLING LTD. | — | BC0220112 | 1980-11-12 | Inactive | |
| DIAMOND P HOLDINGS LTD. | — | BC0247353 | 1982-01-04 | Active | |
| DIAMOND PACIFIC CONSTRUCTION LTD. | — | BC1362764 | 2022-05-13 | Active | |
| DIAMOND PACIFIC MANAGEMENT | — | FM0170120 | 1994-11-14 | Active | |
| DIAMOND PACK INDUSTRIES LTD. | — | BC1557738 | 2025-09-19 | Active | |
| DIAMOND PAINT & AUTO BODY SUPPLY INC. | — | BC0313472 | 1986-08-18 | Inactive | |
| DIAMOND PAINTER LTD. | — | BC0414694 | 1991-10-31 | Inactive | |
| DIAMOND PAINTING | — | FM1010518 | 2023-02-28 | Active | |
| DIAMOND PAINTING & DECORATING | — | FM0115590 | 1991-02-06 | Inactive | |
| DIAMOND PAINTING & DECORATING | — | FM0119806 | 1991-06-07 | Active | |
| DIAMOND PAINTING AND DECORATING | — | FM0490517 | 2008-11-19 | Active | |
| DIAMOND PAINTING AND SERVICES | — | FM0610182 | 2013-06-20 | Active | |
| DIAMOND PAINTING CO. | — | FM0402565 | 2005-07-15 | Active | |
| DIAMOND PAINTING LTD. | — | BC1122247 | 2017-06-09 | Inactive | |
| DIAMOND PAPER BOX & PRODUCTS LTD. | — | BC0048450 | — | Inactive | |
| DIAMOND PARAGON LAWNS | — | FM0812687 | 2020-07-28 | Active | |
| DIAMOND PARK ENTERPRISES INC. | — | BC1153226 | 2018-02-17 | Active | |
| DIAMOND PARK ENTERPRISES INC. | — | A0067065 | 2006-02-07 | Inactive | |
| DIAMOND PARK ENTERPRISES INC. | — | C1205527 | 2019-04-17 | Inactive | |
| DIAMOND PARKING LTD. | — | A0040780 | 1995-04-19 | Active | |
| DIAMOND PARKING SERVICE | — | FM0198391 | 1996-05-01 | Active | |
| DIAMOND PARKING SERVICES LTD. | — | A0069363 | 2006-11-02 | Inactive | |
| DIAMOND PATTERN PRINTING LTD. | — | BC1554754 | 2025-08-28 | Active | |
| DIAMOND PATTERN'S GERIATRIC CLOTHING | — | FM0232115 | 1998-01-05 | Active | |
| DIAMOND PAYROLL SERVICES INC. | — | BC0691429 | 2004-03-31 | Inactive | |
| DIAMOND PEAK SOLUTIONS INC. | — | BC0883698 | 2010-06-16 | Active | |
| DIAMOND PEAKS CONSULTANCY LIMITED | — | BC1011138 | 2014-08-18 | Active | |
| DIAMOND PEAKS HOLDINGS LIMITED | — | BC0956077 | 2012-11-27 | Active | |
| DIAMOND PEO CANADIAN | — | FM0771223 | 2019-03-18 | Active | |
| DIAMOND PERSONNEL INC. | — | A0077971 | 2009-08-20 | Active | |
| DIAMOND PETROCHEMICALS CANADA CORPORATION | — | BC1260889 | 2020-08-11 | Active | |
| DIAMOND PHOTO CUSTOM SERVICES INC. | — | BC0410282 | 1991-08-01 | Inactive | |
| DIAMOND PIRATES SOFTBALL SOCIETY | — | S0051986 | 2007-03-28 | Inactive | |
| DIAMOND PIZZA & SPAGHETTI HOUSE LTD. | — | BC0083863 | 1969-01-08 | Active | |
| DIAMOND PLANET PROPERTIES INC. | — | BC1243702 | 2020-03-09 | Active | |
| DIAMOND PLASTERING & STUCCO LTD. | — | BC0447995 | 1993-05-31 | Inactive | |
| DIAMOND PLASTIC CONTAINERS LTD. | — | A0022336 | 1984-08-17 | Inactive | |
| DIAMOND PLASTIC HANDRAILS (1977) LTD. | — | BC0160566 | 1977-04-20 | Inactive | |
| DIAMOND PLASTICS HANDRAILS LTD. | — | BC0128165 | 1974-05-17 | Inactive | |
| DIAMOND PLATERS LTD. | — | BC0192774 | 1979-06-20 | Inactive | |
| DIAMOND PLAZA PROPERTY LTD. | — | BC0934071 | 2012-03-01 | Active | |
| DIAMOND PLEX HOLDINGS LTD. | — | BC0529350 | 1996-10-18 | Inactive | |
| DIAMOND PLUMBING AND HEATING LTD. | — | BC0776184 | 2006-12-02 | Inactive | |
| DIAMOND PLUMBING CONTRACTORS LTD. | — | BC0304672 | 1986-02-17 | Inactive | |
| DIAMOND PLUS FINANCIAL SERVICES CORP. | — | BC1221511 | 2019-08-29 | Inactive | |
| DIAMOND PLUS MARKETING | — | FM0224283 | 1997-07-29 | Active | |
| DIAMOND POINT CONTRACTORS INC. | — | BC0532306 | 1996-12-03 | Inactive | |
| DIAMOND POINT DISPLAYS | — | FM0322863 | 2002-05-09 | Active | |
| DIAMOND POINT INVESTMENTS LTD. | — | BC0740673 | 2005-11-17 | Active | |
| DIAMOND POINT MINES INC. | — | BC0487969 | 1995-01-11 | Inactive | |
| DIAMOND POOLS | — | FM0748532 | 2018-05-31 | Active | |
| DIAMOND POOLS LTD. | — | BC1527734 | 2025-02-20 | Active | |
| DIAMOND POWER CANADA INC. | — | BC0867024 | 2009-11-24 | Inactive | |
| DIAMOND POWER TOOLS CO. LTD. | — | BC0200011 | 1979-11-14 | Inactive | |
| DIAMOND POWER WASH LTD. | — | BC1105077 | 2017-01-25 | Inactive | |
| DIAMOND POWER WASHING | — | FM0081040 | 1987-08-31 | Inactive | |
| DIAMOND PRACTICE MANAGEMENT INC. | — | BC0962487 | 2013-02-15 | Inactive | |
| DIAMOND PRE-CAST CONCRETE LTD | — | BC0302026 | 1985-12-18 | Inactive | |
| DIAMOND PRE-CAST CONCRETE LTD. | — | BC0744694 | 2006-01-01 | Inactive | |
| DIAMOND PRECAST CONCRETE AND CASTING LTD. | — | BC1372501 | 2022-07-22 | Active | |
| DIAMOND PRECISION CONTRACTING | — | FM0774263 | 2019-04-14 | Active | |
| DIAMOND PRECISION CONTRACTING LTD. | — | BC1351975 | 2022-03-08 | Active | |
| DIAMOND PRECISION CUTTING AND CORING | — | FM0663632 | 2015-06-19 | Active | |
| DIAMOND PRECISION CUTTING AND CORING LTD. | — | BC1048109 | 2015-09-04 | Active | |
| DIAMOND PRESS LTD. | — | BC0451879 | 1993-07-29 | Inactive | |
| DIAMOND PRESSURE WASH AND GUTTER CLEANING LIMITED | — | BC1458615 | 2024-01-02 | Active | |
| DIAMOND PRESSURE WASHING | — | FM0884289 | 2022-06-22 | Active | |
| DIAMOND PRINCESS TRANSPORT LTD. | — | BC1203913 | 2019-04-04 | Inactive | |
| DIAMOND PRINTERS | — | FM0350440 | 2003-06-26 | Active | |
| DIAMOND PRINTING | — | FM0146831 | 1993-07-13 | Active | |
| DIAMOND PRINTING | — | FM0267256 | 1999-09-30 | Active | |
| DIAMOND PRIVATE INVESTIGATIONS INC. | — | BC0590332 | 1999-08-06 | Inactive | |
| DIAMOND PRO FENCING & DECKING LTD. | — | BC1484264 | 2024-06-01 | Active | |
| DIAMOND PRO PAINTING | — | FM1055613 | 2024-09-11 | Active | |
| DIAMOND PROCESS DESIGN | — | FM0341496 | 2003-02-28 | Active | |
| DIAMOND PROCESS DESIGN | — | FM0447458 | 2007-03-30 | Active | |
| DIAMOND PROCESS DESIGN LTD. | — | BC0676902 | 2003-09-11 | Inactive | |
| DIAMOND PRODUCTION LTD. | — | BC0458591 | 1993-11-23 | Inactive | |
| DIAMOND PRODUCTIONS | — | FM0149198 | 1993-09-01 | Active | |
| DIAMOND PRODUCTS, LIMITED | — | LLC0001282 | 2022-04-08 | Active | |
| DIAMOND PROFESSIONAL DETAILING | — | FM0876183 | 2022-04-01 | Active | |
| DIAMOND PROFESSIONAL PRODUCTS FOR THE MANICURIST | — | FM0060957 | 1985-05-06 | Active | |
| DIAMOND PROJECT DESIGN INC. | — | BC0730320 | 2005-07-19 | Active | |
| DIAMOND PROJECT ENTERPRISE | — | FM0158565 | 1994-04-11 | Active | |
| DIAMOND PROJECT ENTERPRISES | — | FM0186886 | 1995-09-19 | Active | |
| DIAMOND PROJECT MANAGEMENT | — | FM0713999 | 2017-03-24 | Active | |
| DIAMOND PROMOTION SERVICES | — | FM0068823 | 1986-04-22 | Active | |
| DIAMOND PROOF COVERAGE | — | FM0847849 | 2021-06-04 | Active | |
| DIAMOND PROPERTIES LIMITED | — | BC0117296 | 1973-04-04 | Inactive | |
| DIAMOND PROPERTIES LTD. | — | BC0598474 | 1999-12-31 | Inactive | |
| DIAMOND PROPERTIES LTD. | — | BC1317071 | 2021-08-01 | Active | |
| DIAMOND PROPERTIES LTD. | — | BC0281648 | 1984-08-16 | Inactive | |
| DIAMOND PROPERTIES LTD. | — | BC1083535 | 2016-07-31 | Inactive | |
| DIAMOND PROPERTY #1 LTD. | — | BC0288435 | 1985-02-12 | Inactive | |
| DIAMOND PROPERTY #2 LTD. | — | BC0505488 | 1995-10-04 | Inactive | |
| DIAMOND PROPERTY #3 LTD. | — | BC0506823 | 1995-10-27 | Inactive | |
| DIAMOND PROPERTY #4 LTD. | — | BC0515108 | 1996-03-05 | Inactive | |
| DIAMOND PROPERTY #5 LTD. | — | BC0505485 | 1995-10-04 | Inactive | |
| DIAMOND PROPERTY #6 LTD. | — | BC0528733 | 1996-10-08 | Inactive | |
| DIAMOND PROSPECT PLACEMENT | — | FM0541783 | 2010-10-29 | Active | |
| DIAMOND PUBS CO. LTD. | — | BC0555462 | 1997-12-05 | Active | |
| DIAMOND PUNJABI LANGUAGE ACADEMY | — | FM0376342 | 2004-07-12 | Active | |
| DIAMOND QUALITY AIR | — | FM0182865 | 1995-07-14 | Active | |
| DIAMOND QUALITY AUTOMOTIVE LTD. | — | BC0641133 | 2002-01-28 | Inactive | |
| DIAMOND QUALITY BUILDING SOLUTIONS LTD. | — | BC1067002 | 2016-03-03 | Inactive | |
| DIAMOND QUALITY COATINGS | — | FM0671772 | 2015-10-07 | Active | |
| DIAMOND QUALITY CONCRETE | — | FM0827397 | 2020-12-15 | Active | |
| DIAMOND QUALITY CONCRETE LTD. | — | BC1354675 | 2022-03-23 | Active | |
| DIAMOND QUALITY PAINTING | — | FM0859364 | 2021-09-30 | Active | |
| DIAMOND QUALITY SOLUTIONS INC. | — | BC0931691 | 2012-02-01 | Inactive | |
| DIAMOND QUEEN COLLECTION LTD. | — | BC0902489 | 2011-02-09 | Active | |
| DIAMOND QUEST LABORATORIES INC. | — | BC0396253 | 1990-11-09 | Inactive | |
| DIAMOND R ENT. LTD. | — | BC0693051 | 2004-04-21 | Inactive | |
| DIAMOND R LAND & CATTLE RANCH | — | FM0102792 | 1989-11-28 | Active | |
| DIAMOND R SECURITY SERVICE INC. | — | BC0646934 | 2002-05-02 | Inactive | |
| DIAMOND R. TRUCKING LTD. | — | BC0253416 | 1982-07-20 | Inactive | |
| DIAMOND RADIATOR | — | FM1051001 | 2024-07-11 | Active | |
| DIAMOND RADIATORS | — | FM0543210 | 2010-11-17 | Active | |
| DIAMOND RADIATORS INC. | — | BC0292461 | 1985-05-13 | Inactive | |
| DIAMOND RAE HOLDINGS INC. | — | BC1062199 | 2016-01-21 | Inactive | |
| DIAMOND RAIN MARINE SERVICE | — | FM0481041 | 2008-06-26 | Active | |
| DIAMOND REALTY LTD. | — | BC0112963 | 1972-10-25 | Inactive | |
| DIAMOND REBAR | — | FM0756455 | 2018-09-12 | Active | |
| DIAMOND RECREATION RANCH AND RESORT LTD. | — | BC0254696 | 1982-09-09 | Inactive | |
| DIAMOND REFINISHING | — | FM0185622 | 1995-08-24 | Active | |
| DIAMOND REFLECTIONZ PREMIUM CAR CARE | — | FM0750295 | 2018-06-26 | Active | |
| DIAMOND REFRIGERATION SERVICES | — | FM0059471 | 1985-03-01 | Active | |
| DIAMOND REMUDA RANCH | — | FM0157775 | 1994-03-18 | Active | |
| DIAMOND RESORTS CANADA, LTD. | — | BC1058369 | 2015-12-14 | Active | |
| DIAMOND RESORTS INTERNATIONAL MARKETING, INC. | — | A0104087 | 2017-10-31 | Active | |
| DIAMOND RESOURCE SERVICES LTD. | — | A0033083 | — | Inactive | |
| DIAMOND RESTORATIONS LTD. | — | BC1473773 | 2024-04-02 | Inactive | |
| DIAMOND RESTROOM RENTALS | — | FM0754473 | 2018-08-13 | Active | |
| DIAMOND RESTROOM RENTALS LTD. | — | BC1329801 | 2021-10-23 | Active | |
| DIAMOND RETIREMENT PLANNING (B.C.) LTD. | — | BC0558020 | 1998-01-21 | Inactive | |
| DIAMOND RETIREMENT PLANNING LTD. | — | A0114038 | 2020-07-21 | Active | |
| DIAMOND RICO CONSULTANTS LTD. | — | BC0658055 | 2002-11-06 | Inactive | |
| DIAMOND RIDGE APARTMENTS LIMITED PARTNERSHIPS | — | LP0081670 | 1987-10-01 | Active | |
| DIAMOND RIDGE APARTMENTS LTD. | — | BC0333715 | 1987-09-23 | Inactive | |
| DIAMOND RIDGE CONTRACTING LTD. | — | BC0558536 | 1998-01-29 | Inactive | |
| DIAMOND RIDGE FLOORING | — | FM0880296 | 2022-05-15 | Active | |
| DIAMOND RIDGE HOMES DEVELOPMENT LTD. | — | BC1264865 | 2020-09-09 | Active | |
| DIAMOND RIDGE ROOFING | — | FM0657795 | 2015-04-10 | Active | |
| DIAMOND RING BOXING | — | S0042596 | 2001-01-17 | Inactive | |
| DIAMOND RISE CONSTRUCTION LTD | — | A0138981 | 2025-10-09 | Active | |
| DIAMOND RISING & COMPANY ENTERPRISE CORP. | — | BC1107091 | 2017-02-11 | Inactive | |
| DIAMOND RIVER BOOKS | — | FM0515107 | 2009-11-05 | Active | |
| DIAMOND ROBINSON BUILDING LTD. | — | BC0367422 | 1989-06-12 | Inactive | |
| DIAMOND ROBINSON GROUP LTD. | — | BC0369375 | 1989-07-17 | Inactive | |
| DIAMOND ROBINSON HOTELS LTD. | — | BC0411017 | 1991-08-19 | Inactive | |
| DIAMOND ROBINSON MANAGEMENT LTD. | — | BC0272485 | 1983-12-28 | Inactive | |
| DIAMOND ROCK CONSTRUCTION LTD. | — | BC0174946 | 1978-05-09 | Active | |
| DIAMOND ROCK GUIDES | — | FM0251814 | 1999-01-08 | Active | |
| DIAMOND ROCK REFLECTIONS | — | FM0256589 | 1999-04-01 | Active | |
| DIAMOND ROOFING & SERVICES | — | FM0426299 | 2006-06-07 | Inactive | |
| DIAMOND ROOFING LTD. | — | BC0489851 | 1995-02-03 | Inactive | |
| DIAMOND ROOFING LTD. | — | BC0773246 | 2006-10-31 | Inactive | |
| DIAMOND ROOM JEWELLERS | — | FM0008100 | 1971-05-19 | Active | |
| DIAMOND ROOTS CORP. | — | BC1526954 | 2025-02-14 | Active | |
| DIAMOND ROYAEL BEAUTY BAR | — | FM0774221 | 2019-04-13 | Active | |
| DIAMOND RUBBER COMPANY OF NEW YORK | — | B0000092 | — | Inactive | |
| DIAMOND RUSH VENTURE | — | FM0381914 | 2004-10-06 | Active | |
| DIAMOND S CONTRACTING | — | FM0291759 | 2000-11-29 | Active | |
| DIAMOND S HOLDINGS | — | FM0351339 | 2003-07-11 | Active | |
| DIAMOND S MANAGEMENT LIMITED | — | BC0322044 | 1987-02-17 | Inactive | |
| DIAMOND S PRODUCE LTD. | — | A0018723 | 1981-11-03 | Inactive | |
| DIAMOND S REINFORCING LTD. | — | BC0488344 | 1995-01-16 | Inactive | |
| DIAMOND S. HOLDINGS LTD. | — | BC0719957 | 2005-03-23 | Inactive | |
| DIAMOND S. S. CONSTRUCTION LTD. | — | BC0148362 | 1976-05-06 | Inactive | |
| DIAMOND SAFETY LTD. | — | BC1210574 | 2019-05-29 | Inactive | |
| DIAMOND SANDBLASTING COMPANY INC. | — | BC1286876 | 2021-02-01 | Active | |
| DIAMOND SAW SHARPENING | — | FM0314064 | 2001-12-18 | Active | |
| DIAMOND SCHOOL | — | FM0890286 | 2022-09-15 | Active | |
| DIAMOND SCHOOL | — | FM0814689 | 2020-08-20 | Inactive | |
| DIAMOND SCHOOLS SOCIETY | — | S0070933 | 2019-03-09 | Inactive | |
| DIAMOND SCISSORS | — | FM0707685 | 2017-01-17 | Active | |
| DIAMOND SEA GLAZE MANUFACTURING | — | FM0703143 | 2016-11-16 | Active | |