| DECIMA RESEARCH | — | FM0095116 | 1989-02-23 | Active | |
| DECIMA RESEARCH | — | FM0128482 | 1992-03-25 | Active | |
| DECIMA TECHNOLOGIES | — | FM0891158 | 2022-10-04 | Active | |
| DECIMAL ACCOUNTING | — | FM0608256 | 2013-05-23 | Active | |
| DECIMAL BUSINESS SOLUTIONS | — | FM0832288 | 2021-02-10 | Active | |
| DECIMAL INVESTORS INC. | — | BC0186318 | 1979-02-08 | Inactive | |
| DECIMAL MANAGEMENT | — | FM0310944 | 2001-10-25 | Active | |
| DECIMAL MARKETS CANADA LTD. | — | BC1593893 | 2026-06-04 | Active | |
| DECIMAL SECURITY | — | FM0761678 | 2018-11-22 | Active | |
| DECIMAL SECURITY INC. | — | BC1349150 | 2022-02-21 | Active | |
| DECIMAL SYSTEMS LTD. | — | BC1558128 | 2025-09-23 | Active | |
| DECIMATOR DIECUTS | — | FM0471625 | 2008-02-28 | Active | |
| DECIMUS HOLDINGS INCORPORATED | — | BC1351912 | 2022-03-08 | Active | |
| DECINOVATION EDUCATIONAL CONSULTANTS | — | FM0093992 | 1989-01-18 | Active | |
| DECIPHEARTH | — | FM0523476 | 2010-03-02 | Active | |
| DECIPHER & ATLAS MEDIA INC. | — | BC1574122 | 2026-01-22 | Active | |
| DECIPHER CAPITAL CORP. | — | BC0867788 | 2009-12-02 | Inactive | |
| DECIPHER CONSULTING | — | FM0353449 | 2003-08-15 | Active | |
| DECIPHER COUNSELLING ART THERAPY STUDIO | — | FM0750520 | 2018-06-28 | Active | |
| DECIPHER DESIGNS | — | FM0849187 | 2021-06-16 | Active | |
| DECIPHERA PHARMACEUTICALS (CANADA) CORP. | — | BC1264982 | 2020-09-10 | Active | |
| DECISION ACCOUNTING RESEARCH IINC. | — | A0068835 | 2006-08-29 | Inactive | |
| DECISION BOX | — | FM0292880 | 2000-12-20 | Active | |
| DECISION CONSULTING GROUP | — | FM0366520 | 2004-02-27 | Active | |
| DECISION DATA (CANADA) INC. | — | A0011857 | — | Inactive | |
| DECISION DATA SYSTEMS LIMITED | — | A0037266 | 1993-06-16 | Inactive | |
| DECISION DRIVER TRAINING INC. | — | BC0536009 | 1997-02-03 | Inactive | |
| DECISION DYNAMICS CANADA | — | FM0183507 | 1995-07-24 | Active | |
| DECISION DYNAMICS TECHNOLOGY LTD. DECISION DYNAMICS TECHNOLOGIE LTEE | — | A0071766 | 2007-07-11 | Inactive | |
| DECISION DYNAMICS, INC. | — | A0041047 | 1995-06-08 | Inactive | |
| DECISION ENTERPRISES LTD. | — | BC0505765 | 1995-10-10 | Inactive | |
| DECISION HEIGHT HOLDINGS LTD. | — | BC1054968 | 2015-11-10 | Active | |
| DECISION INVESTMENTS LTD. | — | BC0085815 | 1969-04-10 | Inactive | |
| DECISION MAKERS BUSINESS SERVICES | — | FM0293070 | 2000-12-27 | Active | |
| DECISION MANAGEMENT SERVICES (DMS) INC. | — | BC0271697 | 1983-12-06 | Inactive | |
| DECISION MARKETING INC. | — | BC0296925 | 1985-08-23 | Inactive | |
| DECISION PLANNING SERVICES LTD. | — | BC0382384 | 1990-02-19 | Inactive | |
| DECISION POINT ADVISORS INC. | — | BC1010456 | 2014-08-11 | Active | |
| DECISION POINT NORTH CONSULTING | — | FM0602449 | 2013-03-05 | Active | |
| DECISION POINT STYLING INC. | — | BC0241932 | 1981-09-08 | Inactive | |
| DECISION RESEARCH INC. | — | BC0317266 | 1986-11-12 | Inactive | |
| DECISION SCIENCE RESEARCH INSTITUTE, INC. | — | XS0034905 | 1996-02-20 | Inactive | |
| DECISION SERVCOM CANADA INC. | — | A0040776 | 1995-04-18 | Inactive | |
| DECISION SPACE | — | FM1030277 | 2023-11-17 | Active | |
| DECISION STRATEGIES CANADA LLP | — | LL0003403 | 2026-09-01 | Active | |
| DECISION STREAMS INC | — | A0127126 | 2023-03-31 | Active | |
| DECISION STREAMS INC. | — | A0100112 | 2016-09-16 | Inactive | |
| DECISION SUPPORT CONSULTANCY LTD. | — | BC0514860 | 1996-03-01 | Inactive | |
| DECISION SUPPORT SOFTWARE | — | FM0186057 | 1995-09-05 | Active | |
| DECISION TECHNOLOGIES | — | FM0082387 | 1987-11-02 | Active | |
| DECISION TREE FORESTRY CONSULTING | — | FM0379353 | 2004-08-28 | Active | |
| DECISION TREE FORESTRY CONSULTING LTD. | — | BC0778775 | 2007-01-02 | Inactive | |
| DECISION TREES INC. | — | BC1450864 | 2023-11-22 | Active | |
| DECISIONMAKING IT SERVICES | — | FM0625704 | 2014-01-30 | Inactive | |
| DECISIONONE CORPORATION | — | A0029460 | 1989-05-05 | Inactive | |
| DECISIONPOINT TECHNOLOGIES CANADA | — | FM1066135 | 2025-01-28 | Active | |
| DECISIONS 21 SOFTWARE LTD. | — | BC0942926 | 2012-06-12 | Inactive | |
| DECISIONS CONSULTING & INVESTING INC. | — | BC0765835 | 2006-08-11 | Inactive | |
| DECISIONS RECOVERY HOUSING SOCIETY | — | S0034216 | 1995-09-21 | Inactive | |
| DECISIONS TRAVEL LTD. | — | BC0544878 | 1997-06-16 | Active | |
| DECISIVE BALANCE CONSULTING INC. | — | BC1383503 | 2022-10-20 | Active | |
| DECISIVE CONCEPTS INC. | — | BC0849946 | 2009-04-17 | Inactive | |
| DECISIVE CONTRACTING LTD. | — | BC1225689 | 2019-10-03 | Active | |
| DECISIVE CREDIT CONTROLS | — | FM0147707 | 1993-07-29 | Inactive | |
| DECISIVE DIGITS BOOKKEEPING | — | FM1045592 | 2024-05-06 | Active | |
| DECISIVE DIVIDEND ACQUISITION #2 CORPORATION | — | BC1073026 | 2016-04-22 | Inactive | |
| DECISIVE DIVIDEND CORPORATION | — | BC0951772 | 2012-10-02 | Active | |
| DECISIVE FARMING CORP. | — | C1233117 | 2019-12-10 | Active | |
| DECISIVE MACHINE & INNOVATIONS INC. | — | BC0675498 | 2003-08-19 | Inactive | |
| DECISIVE MARKETING COMPANY | — | FM0058712 | 1985-01-29 | Active | |
| DECISIVE METROLOGY AND IMAGING SERVICES CANADA | — | FM0419862 | 2006-03-20 | Active | |
| DECISIVE PROPERTY MANAGEMENT | — | FM0266858 | 1999-09-28 | Active | |
| DECISIVE SALES | — | FM0259990 | 1999-05-28 | Active | |
| DECISIVE SALES LTD. | — | BC0606355 | 2000-05-04 | Inactive | |
| DECISIVE SOLUTIONS INC. | — | BC0991119 | 2014-01-16 | Inactive | |
| DECISIVE STRATEGY CONSULTANTS | — | FM0132752 | 1992-07-29 | Active | |
| DECISIVE TECHNOLOGIES INC. | — | BC1284037 | 2021-01-15 | Active | |
| DECISIVE WARGAME DESIGN | — | FM1062322 | 2024-12-09 | Active | |
| DECITEC SERVICES | — | FM0203566 | 1996-07-25 | Active | |
| DECK & DECK STEEL ENTERPRISES | — | FM0098318 | 1989-06-12 | Inactive | |
| DECK 8 HOLDINGS INC. | — | BC1053064 | 2015-10-23 | Inactive | |
| DECK AGENCY INC. | — | A0089768 | 2013-07-25 | Inactive | |
| DECK APE COMMUNICATIONS LTD. | — | BC0998322 | 2014-04-01 | Active | |
| DECK APE ENTERPRISES | — | FM0260499 | 1999-06-07 | Active | |
| DECK COVER CLEAN & SCREEN | — | FM1019003 | 2023-06-14 | Active | |
| DECK CRAFTERS | — | FM0754903 | 2018-08-17 | Active | |
| DECK DODGERS & CO. | — | FM0175973 | 1995-03-10 | Active | |
| DECK DYNASTY (DECKS RAILS AND RENOS) LTD. | — | BC0830391 | 2008-07-17 | Inactive | |
| DECK ELECTRIC LTD. | — | BC0059288 | 1964-02-13 | Inactive | |
| DECK EXPERTS SERVICES LTD. | — | BC0874113 | 2010-02-17 | Active | |
| DECK FAMILY ASSETS CORP. | — | BC0699254 | 2004-07-07 | Active | |
| DECK FAT FREIGHT INC. | — | BC1300943 | 2021-04-19 | Active | |
| DECK FIFTY DESIGN | — | FM0511823 | 2009-09-23 | Active | |
| DECK FIFTY DESIGN INC. | — | BC0902713 | 2011-02-11 | Active | |
| DECK FLUFF CLOTHING & ACCESSORIES | — | FM0479791 | 2008-06-10 | Active | |
| DECK HANDS ENT. | — | FM0268504 | 1999-10-19 | Active | |
| DECK HOLDINGS LTD. | — | BC0074283 | 1967-05-12 | Active | |
| DECK INSPECTOR | — | FM1040971 | 2024-03-12 | Active | |
| DECK INVESTMENT CORP. | — | BC0555093 | 1997-11-28 | Inactive | |
| DECK IT EXTERIOR RENOS | — | FM0627338 | 2014-02-20 | Active | |
| DECK MANAGEMENT LTD. | — | BC0277786 | 1984-05-09 | Inactive | |
| DECK MASTERS CUSTOM VINYL LTD. | — | BC0430271 | 1992-08-05 | Inactive | |
| DECK ME CONSTRUCTION | — | FM0476393 | 2008-04-28 | Active | |
| DECK ME DECK & RAILINGS | — | FM0480852 | 2008-06-24 | Active | |
| DECK MEDIC | — | FM1009688 | 2023-02-15 | Active | |
| DECK NEXT DOOR CONSTRUCTION | — | FM0682636 | 2016-03-02 | Active | |
| DECK PODS CANADA | — | FM0544323 | 2010-12-03 | Active | |
| DECK PROPERTIES LTD. | — | BC0755593 | 2006-04-24 | Inactive | |
| DECK PROPERTIES LTD. | — | BC0125008 | 1974-02-07 | Inactive | |
| DECK PROS CONSTRUCTION & RAILINGS INC. | — | BC1201137 | 2019-03-14 | Active | |
| DECK PROS WATERPROOFING | — | FM0683247 | 2016-03-09 | Active | |
| DECK RIDERS TRANSPORT LTD. | — | BC1290417 | 2021-02-23 | Inactive | |
| DECK SHEET METAL LTD. | — | BC0699295 | 2004-07-08 | Inactive | |
| DECK SLAYER FORMING LTD. | — | BC1228494 | 2019-10-29 | Active | |
| DECK STAR RESTORATIONS INC. | — | BC1012586 | 2014-09-03 | Active | |
| DECK THE HALLS A CHRISTMAS STORE | — | FM0856664 | 2021-08-30 | Active | |
| DECK THE HOUSE | — | FM0701748 | 2016-10-27 | Active | |
| DECK TOYS | — | FM0009247 | 1972-01-14 | Active | |
| DECK TRAFFIC CONTROL | — | FM0806949 | 2020-05-25 | Active | |
| DECK WEST TRANSPORTATION | — | FM0383338 | 2004-10-28 | Active | |
| DECK WORKS TRANSPORT SYSTEMS LIMITED | — | BC1046034 | 2015-08-17 | Active | |
| DECK'D OUT VICTORIA | — | FM0852789 | 2021-07-13 | Active | |
| DECK'S PAINTING AND DECORATING | — | FM0816991 | 2020-09-14 | Active | |
| DECK-CETERA RENOVATIONS | — | FM0247918 | 1998-10-14 | Active | |
| DECK-ME CONSTRUCTION | — | FM0200913 | 1996-06-06 | Active | |
| DECK-STAIR-ITY ENTERPRISES LTD. | — | BC0677000 | 2003-09-12 | Inactive | |
| DECK12 GAMES CANADA INC. | — | BC1059654 | 2015-12-24 | Inactive | |
| DECKADENCE CONSTRUCTION | — | FM0120862 | 1991-07-08 | Active | |
| DECKADENCE CONSTRUCTION INC. | — | C0796374 | 2007-07-06 | Active | |
| DECKADENCE INC. | — | A0034379 | 1991-10-02 | Inactive | |
| DECKADENCE MINI EXCAVATING INC. | — | BC1178570 | 2018-09-07 | Inactive | |
| DECKADENT DECKS AND FENCES | — | FM0143973 | 1993-05-18 | Active | |
| DECKCRAFTERS DECK DESIGN & BUILD | — | FM0765504 | 2019-01-14 | Active | |
| DECKDEFENDOR DECKING INC. | — | BC1023380 | 2014-12-29 | Inactive | |
| DECKED OUT CONSTRUCTION | — | FM0583112 | 2012-05-11 | Active | |
| DECKED OUT CONSTRUCTION | — | FM0493993 | 2009-01-21 | Active | |
| DECKED OUT CONSTRUCTION INC. | — | BC0942349 | 2012-06-05 | Inactive | |
| DECKED OUT DECOR LTD. | — | BC0835070 | 2008-09-16 | Inactive | |
| DECKED OUT DECORATING SERVICE | — | FM0095085 | 1989-02-23 | Active | |
| DECKED OUT DECORATING SERVICE | — | FM0103107 | 1989-12-08 | Active | |
| DECKED OUT DOGS | — | FM1067625 | 2025-02-11 | Active | |
| DECKED OUT HOME & PATIO FURNISHINGS LTD. | — | BC1013864 | 2014-09-17 | Active | |
| DECKED OUT HOME AND PATIO | — | FM0623790 | 2014-01-06 | Active | |
| DECKED OUT HOME AND PATIO | — | FM0646424 | 2014-11-06 | Active | |
| DECKED OUT MARINE SERVICES LTD. | — | BC1238848 | 2020-01-29 | Active | |
| DECKED OUT RAILINGS | — | FM1038144 | 2024-02-12 | Active | |
| DECKED OUT RAILINGS | — | FM0567353 | 2011-10-05 | Active | |
| DECKED OUT RAILINGS INC. | — | BC1537799 | 2025-05-01 | Active | |
| DECKED OUT! CARPENTRY | — | FM0389561 | 2005-02-04 | Active | |
| DECKED RECORDS | — | FM0465267 | 2007-11-28 | Active | |
| DECKER CONSTRUCTION 2000 INC. | — | BC0538721 | 1997-03-14 | Inactive | |
| DECKER CONSTRUCTION LTD. | — | BC0325227 | 1987-04-15 | Inactive | |
| DECKER CREEK CONTRACTING LTD. | — | BC1014304 | 2014-09-23 | Inactive | |
| DECKER DEVELOPMENT CORP. | — | BC0154543 | 1976-11-08 | Inactive | |
| DECKER DEVELOPMENT CORPORATION | — | BC0310139 | 1986-06-04 | Inactive | |
| DECKER DEVELOPMENT CORPORATION | — | BC1569776 | 2026-01-01 | Active | |
| DECKER DISTRIBUTORS CORP. | — | BC0885508 | 2010-07-09 | Inactive | |
| DECKER ENTERPRISES INC. | — | BC0851350 | 2009-05-06 | Active | |
| DECKER ENTERPRISES LTD. | — | BC0431918 | 1992-09-08 | Inactive | |
| DECKER FISHING CO. LTD. | — | BC0060563 | 1964-06-01 | Inactive | |
| DECKER HOLDINGS LTD. | — | BC0366926 | 1989-06-01 | Inactive | |
| DECKER HOLDINGS LTD. | — | BC0788321 | 2007-04-16 | Inactive | |
| DECKER HOLDINGS LTD. | — | BC0539411 | 1997-03-23 | Inactive | |
| DECKER HOLIDAYS | — | FM0143148 | 1993-05-03 | Active | |
| DECKER ILLUMINATION LTD. | — | BC0529717 | 1996-10-24 | Inactive | |
| DECKER INDUSTRIES | — | FM0573616 | 2012-01-11 | Active | |
| DECKER INDUSTRIES INC. | — | BC0312055 | 1986-07-16 | Inactive | |
| DECKER INVESTMENTS LIMITED | — | BC0230868 | 1981-03-31 | Inactive | |
| DECKER INVESTMENTS LTD. | — | BC0367577 | 1989-06-14 | Inactive | |
| DECKER LAKE DEVELOPMENTS LTD. | — | BC0311357 | 1986-06-30 | Inactive | |
| DECKER LAKE FOREST PRODUCTS LTD. | — | BC0639818 | 2001-12-31 | Active | |
| DECKER LAKE FOREST PRODUCTS LTD. | — | BC0083299 | 1968-12-04 | Inactive | |
| DECKER LAKE HERITAGE GREENHOUSE & GIFT SHOP | — | FM0529750 | 2010-05-19 | Active | |
| DECKER LAKE LAND CO. LIMITED | — | QE0002712 | — | Inactive | |
| DECKER LAKE LOG HOMES LTD. | — | BC0144638 | 1976-01-22 | Inactive | |
| DECKER LAKE LUMBER CO. LTD. | — | BC0023655 | — | Inactive | |
| DECKER LAKE MAINTENANCE | — | FM0402130 | 2005-07-11 | Active | |
| DECKER LAKE NEW & USED ENTERPRISES LTD. | — | BC0246655 | 1981-12-15 | Inactive | |
| DECKER LAKE NEW & USED HOLDINGS LTD. | — | BC0203153 | 1980-01-22 | Inactive | |
| DECKER LAKE RECREATION COMMISSION | — | S0025110 | 1989-06-26 | Active | |
| DECKER LAKE RECREATION COMMISSION AND COMMUNITY HALL ASSOCIATION | — | S0003186 | 1947-03-28 | Inactive | |
| DECKER LAKE TRADING POST (2023) | — | FM1031044 | 2023-11-27 | Inactive | |
| DECKER LAKE TRADING POST 2019 | — | FM0776611 | 2019-05-09 | Inactive | |
| DECKER LAW CORPORATION | — | BC0955053 | 2012-11-13 | Active | |
| DECKER MANAGEMENT LTD. | — | BC0142179 | 1975-10-24 | Active | |
| DECKER PAINTING AND LOG REFINISHING | — | FM0205607 | 1996-09-05 | Inactive | |
| DECKER PETROLEUM LTD. | — | A0069023 | 2006-09-26 | Inactive | |
| DECKER RESIDENCE LTD. | — | BC0466599 | 1994-02-18 | Active | |
| DECKER RESOURCES LTD. | — | BC0093285 | 1970-04-27 | Inactive | |
| DECKER SERVICES INC. | — | BC0330603 | 1987-07-22 | Active | |
| DECKER SOFTWARE INC. | — | BC1495637 | 2024-08-06 | Active | |
| DECKER TRUCK LINE, INC. | — | A0045066 | 1997-05-16 | Inactive | |
| DECKER'S AUTO PARTS LTD. | — | BC0044660 | 1959-05-07 | Inactive | |
| DECKER'S BRAKE & AUTO CENTRE LTD. | — | BC0667454 | 2003-04-08 | Inactive | |
| DECKER'S CAFE | — | FM0322819 | 2002-05-09 | Active | |
| DECKER'S POULTRY FARM LTD. | — | BC0188922 | 1979-03-30 | Inactive | |
| DECKER-HOLYROOD MANOR LTD. | — | BC0322835 | 1987-03-04 | Inactive | |
| DECKER-NORMANDY HOSPITAL LTD. | — | BC0312070 | 1986-07-16 | Inactive | |
| DECKER-SANDRINGHAM HOSPITAL LTD. | — | BC0312071 | 1986-07-16 | Inactive | |
| DECKERS AUTO & TIRE CENTER INC. | — | BC1590736 | 2026-05-14 | Active | |