| CASTLE PLASTICS LTD. | — | BC0135432 | 1975-03-07 | Inactive | |
| CASTLE PLUMBING | — | FM0330668 | 2002-09-16 | Active | |
| CASTLE PLUMBING & HEATING COMPANY | — | FM0266642 | 1999-09-23 | Active | |
| CASTLE PLYWOOD SALES LTD. | — | BC1136149 | 2017-10-02 | Active | |
| CASTLE PLYWOOD SALES LTD. | — | BC0152597 | 1976-09-10 | Inactive | |
| CASTLE POINT CONSTRUCTION | — | FM0541942 | 2010-11-01 | Active | |
| CASTLE POTTERY | — | FM0880058 | 2022-05-12 | Active | |
| CASTLE PRECISION MACHINING | — | FM0481191 | 2008-06-29 | Active | |
| CASTLE PRECISION MACHINING INC. | — | BC0865826 | 2009-11-09 | Active | |
| CASTLE PRINTING | — | FM0288824 | 2000-10-03 | Active | |
| CASTLE PRINTING | — | FM0157572 | 1994-03-17 | Active | |
| CASTLE PRODUCTIONS | — | FM0107766 | 1990-05-16 | Inactive | |
| CASTLE PRODUCTIONS | — | FM0113459 | 1990-12-03 | Active | |
| CASTLE PRODUCTIONS | — | FM0088919 | 1988-06-29 | Active | |
| CASTLE PRODUCTIONS LTD. | — | BC0905775 | 2011-03-17 | Inactive | |
| CASTLE PRODUCTS INC. | — | BC1053271 | 2015-10-26 | Inactive | |
| CASTLE PROFESSIONAL LOT SERVICES LTD. | — | BC0267030 | 1983-07-26 | Inactive | |
| CASTLE PROJECTS INC. | — | BC0272690 | 1984-01-04 | Inactive | |
| CASTLE PROJECTS INC. | — | BC0525301 | 1996-08-15 | Active | |
| CASTLE PROPERTIES (1982) LTD. | — | BC0252560 | 1982-06-16 | Inactive | |
| CASTLE PROPERTIES (1986) LTD. | — | BC0310493 | 1986-06-11 | Inactive | |
| CASTLE PROPERTIES LTD. | — | BC0139147 | 1975-07-04 | Inactive | |
| CASTLE PROPERTY SERVICES | — | FM0379383 | 2004-08-30 | Active | |
| CASTLE PROPERTY SERVICES | — | FM0724855 | 2017-07-30 | Active | |
| CASTLE PUBLISHING | — | FM0255211 | 1999-03-08 | Active | |
| CASTLE PUBLISHING & DESIGN STUDIO | — | FM0244446 | 1998-08-05 | Active | |
| CASTLE QUALITY SYSTEM CONSULTING LTD. | — | BC0648713 | 2002-05-31 | Inactive | |
| CASTLE RAIN ENTERTAINMENT | — | FM0296022 | 2001-02-21 | Active | |
| CASTLE RANCH | — | FM0200655 | 1996-06-04 | Active | |
| CASTLE REALTY | — | FM0009159 | 1971-12-30 | Active | |
| CASTLE REALTY LTD. | — | BC0128014 | 1974-05-13 | Inactive | |
| CASTLE REED VENTURES LTD. | — | BC0456731 | 1993-10-22 | Inactive | |
| CASTLE RELOADING | — | FM0146126 | 1993-06-25 | Active | |
| CASTLE RENOVATIONS | — | FM0115430 | 1991-01-31 | Active | |
| CASTLE RENTALS INC. | — | BC0184979 | 1979-01-08 | Inactive | |
| CASTLE RESORT DAY SPA | — | FM0451119 | 2007-05-17 | Active | |
| CASTLE RESOURCES INC. | — | A0080841 | 2010-08-10 | Active | |
| CASTLE RESTORATION | — | FM0148845 | 1993-08-25 | Active | |
| CASTLE RESTORATION LTD. | — | BC0604336 | 2000-03-29 | Inactive | |
| CASTLE RETAINING WALLS INC. | — | BC1181274 | 2018-09-28 | Active | |
| CASTLE RIDGE ASSET MANAGEMENT LIMITED | — | A0102853 | 2017-06-16 | Inactive | |
| CASTLE RISING CONSULTING CORP. | — | BC0935003 | 2012-03-10 | Active | |
| CASTLE RISING MEDIA CORP. | — | BC1185747 | 2018-11-06 | Active | |
| CASTLE RIVER PROPERTIES LTD. | — | BC0328732 | 1987-06-18 | Inactive | |
| CASTLE RIVER WOODWORK | — | FM0096304 | 1989-04-05 | Active | |
| CASTLE RIVER WOODWORKING | — | FM1024859 | 2023-09-01 | Active | |
| CASTLE ROCK AGGREGATES GENERAL PARTNER LTD. | — | BC1477427 | 2024-04-23 | Active | |
| CASTLE ROCK AGGREGATES LIMITED PARTNERSHIP | — | LP0894058 | 2024-04-25 | Active | |
| CASTLE ROCK ASSOCIATES, INC. | — | A0098773 | 2016-04-28 | Inactive | |
| CASTLE ROCK BOOK EMPORIUM | — | FM0248927 | 1998-11-02 | Active | |
| CASTLE ROCK BOOK EMPORIUM LTD. | — | BC0574787 | 1998-11-12 | Inactive | |
| CASTLE ROCK BREWING LTD. | — | BC0927639 | 2011-12-14 | Inactive | |
| CASTLE ROCK CONCRETE LTD. | — | BC0821726 | 2008-04-09 | Inactive | |
| CASTLE ROCK CONSTRUCTION | — | FM0297506 | 2001-03-12 | Inactive | |
| CASTLE ROCK CONSTRUCTION LTD. | — | BC0423858 | 1992-04-09 | Inactive | |
| CASTLE ROCK CREATIONS | — | FM0235867 | 1998-03-18 | Active | |
| CASTLE ROCK DESIGNS LTD. | — | BC0917378 | 2011-08-08 | Inactive | |
| CASTLE ROCK DEVELOPMENTS LTD. | — | BC0416733 | 1991-12-09 | Active | |
| CASTLE ROCK ENTERPRISES | — | FM0178082 | 1995-04-13 | Active | |
| CASTLE ROCK ENTERPRISES INC. | — | BC0607406 | 2000-05-19 | Inactive | |
| CASTLE ROCK ENTERPRISES LTD. | — | BC0962678 | 2013-02-19 | Inactive | |
| CASTLE ROCK ESTATES LIMITED PARTNERSHIP | — | LP0630318 | 2014-03-27 | Inactive | |
| CASTLE ROCK ESTATES LTD. | — | BC0688074 | 2004-02-25 | Inactive | |
| CASTLE ROCK ESTATES LTD. | — | BC0650117 | 2002-06-26 | Inactive | |
| CASTLE ROCK FARMS INC. | — | BC1175170 | 2018-08-08 | Active | |
| CASTLE ROCK HOME MANAGEMENT SERVICES | — | FM0195019 | 1996-03-01 | Active | |
| CASTLE ROCK INVESTMENTS LTD. | — | BC0814946 | 2008-01-28 | Inactive | |
| CASTLE ROCK KENNELS | — | FM0596799 | 2012-12-05 | Active | |
| CASTLE ROCK KENNELS (2000) | — | FM0285882 | 2000-08-10 | Active | |
| CASTLE ROCK LANDSCAPE SUPPLY INC. | — | BC0524899 | 1996-08-09 | Inactive | |
| CASTLE ROCK LIVESTOCK ASSOCIATION | — | S0006448 | 1962-08-21 | Inactive | |
| CASTLE ROCK LOGGING LTD. | — | BC0039036 | 1957-05-29 | Inactive | |
| CASTLE ROCK MANAGEMENT | — | FM0258789 | 1999-05-07 | Active | |
| CASTLE ROCK RESEARCH - B.C. | — | FM0340809 | 2003-02-14 | Active | |
| CASTLE ROCK RIVER TAXI | — | FM0279978 | 2000-05-05 | Active | |
| CASTLE ROCK STUCCO | — | FM0746706 | 2018-05-09 | Active | |
| CASTLE ROCK VENTURES | — | FM0444138 | 2007-02-17 | Active | |
| CASTLE ROCK VENTURES LTD. | — | BC0893631 | 2010-10-25 | Inactive | |
| CASTLE ROCK VILLAS LTD. | — | BC0688179 | 2004-02-26 | Inactive | |
| CASTLE ROCKS | — | FM0512109 | 2009-09-28 | Active | |
| CASTLE ROOFING | — | FM0081902 | 1987-10-09 | Active | |
| CASTLE ROOFING | — | FM0202283 | 1996-07-02 | Active | |
| CASTLE ROOFING | — | FM0388448 | 2005-01-20 | Active | |
| CASTLE ROOFING & DRAINAGE CO | — | FM0215229 | 1997-03-04 | Active | |
| CASTLE ROOFING & SHEET METAL LTD. | — | BC0137042 | 1975-04-29 | Inactive | |
| CASTLE ROOFING AND WATERPROOFING LIMITED | — | BC1032778 | 2015-04-08 | Active | |
| CASTLE ROYALE | — | FM0672793 | 2015-10-21 | Active | |
| CASTLE SAFETY SOLUTIONS LTD. | — | BC1064515 | 2016-02-12 | Inactive | |
| CASTLE SEAT MANUFACTURING LTD. | — | BC0226736 | 1981-02-12 | Inactive | |
| CASTLE SECURITY | — | FM0746670 | 2018-05-08 | Active | |
| CASTLE SECURITY LTD. | — | BC1237682 | 2020-01-17 | Inactive | |
| CASTLE SECURITY SYSTEMS | — | FM0076539 | 1987-03-12 | Active | |
| CASTLE SENIORS PROPERTIES LTD. | — | BC0867472 | 2009-11-30 | Active | |
| CASTLE SERVICE LTD. | — | BC0028810 | — | Inactive | |
| CASTLE SEWING CENTRE INC. | — | BC0310939 | 1986-06-20 | Inactive | |
| CASTLE SEWING ENTERPRISE INC. | — | BC0646536 | 2002-04-26 | Active | |
| CASTLE SHEET METAL LTD. | — | BC0694000 | 2004-04-30 | Inactive | |
| CASTLE SHIRT SHOP, LIMITED | — | BC0009306 | — | Inactive | |
| CASTLE SILVER MINES INC. MINES D'ARGENT CASTLE INC. | — | A0084216 | 2011-09-15 | Inactive | |
| CASTLE SKYLIGHTS | — | FM0735306 | 2017-12-13 | Active | |
| CASTLE SKYMOBILES LTD. | — | BC0252799 | 1982-06-25 | Inactive | |
| CASTLE SPA LIMITED | — | BC1205842 | 2019-04-19 | Active | |
| CASTLE STEEL MANUFACTURING LTD. | — | BC0201858 | 1979-12-21 | Inactive | |
| CASTLE STREET LAW CORPORATION | — | BC0663903 | 2003-02-13 | Active | |
| CASTLE STUART ENTERPRISES LTD. | — | BC1146941 | 2017-12-28 | Inactive | |
| CASTLE STUDENT HOUSING, CANADA, INC. | — | BC1131251 | 2017-08-23 | Inactive | |
| CASTLE STUDIO | — | FM0563514 | 2011-08-11 | Active | |
| CASTLE SUSTAINABLE CONSTRUCTION LTD. | — | BC1460992 | 2024-01-16 | Active | |
| CASTLE T CONTRACTING | — | FM0285669 | 2000-08-08 | Active | |
| CASTLE TECHNOLOGIES | — | FM0196643 | 1996-04-02 | Active | |
| CASTLE THEATRE ASSOCIATION | — | S0049585 | 2005-08-18 | Active | |
| CASTLE THUNDER RECORDINGS | — | FM0590651 | 2012-09-01 | Active | |
| CASTLE THUNDER RECORDINGS INC. | — | BC0973054 | 2013-06-20 | Inactive | |
| CASTLE TILE & MARBLE LTD. | — | BC0444730 | 1993-04-15 | Inactive | |
| CASTLE TILE & RENOVATION LTD. | — | C1345134 | 2022-01-28 | Active | |
| CASTLE TIRE (1977) LTD. | — | BC0156477 | 1977-01-06 | Inactive | |
| CASTLE TIRE LIMITED | — | BC0056969 | 1963-06-10 | Inactive | |
| CASTLE TOURS INC. | — | BC0231586 | 1981-04-07 | Inactive | |
| CASTLE TOURS LTD. | — | BC1097492 | 2016-11-22 | Inactive | |
| CASTLE TOWERS DEVELOPMENTS LTD. | — | BC0863963 | 2009-10-16 | Active | |
| CASTLE TOWERS ENTERPRISES | — | FM0104181 | 1990-01-19 | Active | |
| CASTLE TOYOTA | — | FM0057668 | 1984-11-30 | Active | |
| CASTLE TOYOTA | — | FM0037396 | 1981-04-15 | Active | |
| CASTLE TOYS LTD. | — | BC0456467 | 1993-10-19 | Inactive | |
| CASTLE TRADING LTD. | — | BC0085218 | — | Inactive | |
| CASTLE TRANSPORT LTD. | — | BC1379455 | 2022-09-20 | Active | |
| CASTLE TRANSPORT MOVING COMPANY | — | FM0186691 | 1995-09-15 | Active | |
| CASTLE TREASURES NEW AND USED | — | FM0165010 | 1994-08-09 | Active | |
| CASTLE TRUCKING LTD. | — | BC0392789 | 1990-08-30 | Inactive | |
| CASTLE VALE HOLDINGS LTD. | — | BC0449136 | 1993-06-16 | Inactive | |
| CASTLE VAN SALES LIMITED | — | BC0149251 | 1976-05-31 | Inactive | |
| CASTLE VENTURES | — | FM0591825 | 2012-09-19 | Active | |
| CASTLE VENTURES LIMITED PARTNERSHIP | — | LP0061373 | 1985-05-23 | Active | |
| CASTLE VIEW HOMES LTD. | — | BC0673228 | 2003-07-10 | Active | |
| CASTLE VILLA HOLDINGS LTD. | — | BC0184067 | 1978-12-14 | Inactive | |
| CASTLE WATERWELLS LTD. | — | BC0201354 | 1979-12-11 | Inactive | |
| CASTLE WELDING | — | FM0710371 | 2017-02-16 | Active | |
| CASTLE WEST CONSTRUCTION | — | FM0381270 | 2004-09-28 | Active | |
| CASTLE WEST CONSTRUCTION INC. | — | BC0316658 | 1986-10-29 | Inactive | |
| CASTLE WHOLESALE MARKETING | — | FM0037372 | 1981-04-13 | Active | |
| CASTLE WINDOW & DOOR LTD. | — | BC0253521 | 1982-07-23 | Inactive | |
| CASTLE WINDOW CLEANING | — | FM0399761 | 2005-06-09 | Active | |
| CASTLE WINES LIMITED | — | BC0009633 | — | Inactive | |
| CASTLE WOOD DEVELOPMENTS LTD. | — | BC0591539 | 1999-08-30 | Inactive | |
| CASTLE WOOD VILLAGE LTD. | — | BC0631772 | 2001-07-30 | Active | |
| CASTLE'S 4 SALE BY OWNER | — | FM0070236 | 1986-06-10 | Active | |
| CASTLE'S CREATION | — | FM0667023 | 2015-08-06 | Active | |
| CASTLE-ART DESIGNS LIMITED | — | BC0073782 | — | Inactive | |
| CASTLE-CRAFT WOODWORKS LTD. | — | BC0168934 | 1977-12-12 | Active | |
| CASTLE-KENNEDY HOLDINGS INC. | — | BC0179952 | 1978-09-08 | Inactive | |
| CASTLE-WEATHER STRIPS LTD. | — | BC0046900 | — | Inactive | |
| CASTLE. PHOTOGRAPHY | — | FM0841062 | 2021-04-12 | Active | |
| CASTLEAIRD HARDWARE AND APPLIANCES LTD. | — | BC0081764 | 1968-09-16 | Inactive | |
| CASTLEAIRD PLAZA BAKERY | — | FM0061313 | 1985-05-21 | Active | |
| CASTLEAIRD PLAZA BAKERY LTD. | — | BC0776108 | 2006-12-01 | Inactive | |
| CASTLEAIRD PLAZA SHOPPING CENTRE LTD. | — | BC0045457 | — | Inactive | |
| CASTLEAIRD STYLE SHOP LTD. | — | BC0048554 | 1960-08-29 | Inactive | |
| CASTLEBAR CAPITAL CORP. | — | BC1180193 | 2018-09-20 | Active | |
| CASTLEBAR HOLDINGS LTD. | — | BC0359425 | 1989-02-08 | Inactive | |
| CASTLEBAR INVESTMENTS LTD. | — | BC0854628 | 2009-06-17 | Inactive | |
| CASTLEBAY DEVELOPMENT INC. | — | BC0807268 | 2007-10-31 | Inactive | |
| CASTLEBAY DEVELOPMENT INC. | — | BC1217717 | 2019-07-27 | Inactive | |
| CASTLEBAY MANAGEMENT CORP. | — | A0109811 | 2019-05-17 | Active | |
| CASTLEBAY WEALTH MANAGEMENT INC. | — | BC1054189 | 2015-11-03 | Active | |
| CASTLEBECK DESIGN DRAFTING | — | FM0689454 | 2016-05-18 | Active | |
| CASTLEBEES CLEANING COMPANY | — | FM0504369 | 2009-06-08 | Active | |
| CASTLEBOOKS WEB HOSTING | — | FM0273535 | 2000-01-26 | Active | |
| CASTLEBOROUGH INVESTMENTS INC. | — | BC1294217 | 2021-03-12 | Active | |
| CASTLEBOYS CLOTHING | — | FM0728884 | 2017-09-20 | Active | |
| CASTLEBRIDGE BOOKS, ANTIQUES, COLLECTABLES, ART | — | FM0362649 | 2004-01-08 | Active | |
| CASTLEBRIDGE HOLDINGS COMPANY LIMITED | — | BC0144018 | 1975-12-31 | Inactive | |
| CASTLEBRIDGE HOLDINGS COMPANY LIMITED | — | BC0240742 | 1981-08-12 | Inactive | |
| CASTLEBRIDGE INVESTMENTS COMPANY LIMITED | — | BC0248859 | 1982-02-17 | Inactive | |
| CASTLEBRIDGE PROPERTY INVESTMENT LTD. | — | BC0694925 | 2004-05-12 | Inactive | |
| CASTLEBROOK BONSON INVESTMENTS LTD. | — | BC1156869 | 2018-03-15 | Inactive | |
| CASTLEBROOK EDGAR INVESTMENTS LTD. | — | BC1127270 | 2017-07-19 | Inactive | |
| CASTLEBROOK ENTERPRISES LTD. | — | BC0470181 | 1994-04-07 | Inactive | |
| CASTLEBROOK F4 INVESTMENTS LTD. | — | BC1603362 | 2026-08-10 | Active | |
| CASTLEBROOK INCOME PROPERTIES LTD. | — | BC1229675 | 2019-11-07 | Active | |
| CASTLEBROOK INVESTMENTS LTD. | — | BC1101329 | 2016-12-31 | Active | |
| CASTLEBROOK INVESTMENTS LTD. | — | BC0845142 | 2009-02-06 | Inactive | |
| CASTLEBROOK INVESTMENTS LTD. | — | BC0643313 | 2002-03-04 | Inactive | |
| CASTLEBROOK INVESTMENTS LTD. | — | BC0869984 | 2010-01-01 | Inactive | |
| CASTLEBROOK INVESTMENTS USA LIMITED | — | BC0685071 | 2004-01-13 | Active | |
| CASTLEBROOK SECURITY SERVICES LTD. | — | A0103971 | 2017-10-20 | Active | |
| CASTLEBROOK VENTURES LTD. | — | BC0233414 | 1981-04-30 | Inactive | |
| CASTLEBURY ENTERPRISES LTD. | — | BC0682044 | 2003-11-26 | Active | |
| CASTLEBURY INN | — | FM0252985 | 1999-01-29 | Active | |
| CASTLEBURY THOROUGHBREDS LTD. | — | BC0437907 | 1992-12-22 | Inactive | |
| CASTLECARE HOUSESITTERS LTD. | — | BC0365235 | 1989-05-05 | Inactive | |
| CASTLECARY HOLDINGS INC. | — | BC0758604 | 2006-05-24 | Active | |
| CASTLECLIFF REAL ESTATE INC. | — | BC1046036 | 2015-08-17 | Inactive | |
| CASTLECLIFF SOLUTIONS INC. | — | BC1469046 | 2024-03-05 | Inactive | |
| CASTLECROFT HEATING SERVICES | — | FM0446083 | 2007-03-14 | Active | |
| CASTLEDALE BOOKKEEPING | — | FM0404894 | 2005-08-19 | Active | |
| CASTLEDALE ENTERPRISES LTD. | — | BC0203652 | 1980-01-30 | Inactive | |
| CASTLEDALE FLOWER FARM | — | FM0764818 | 2019-01-07 | Active | |
| CASTLEDALE-HARROGATE IMPROVEMENT SOCIETY (CHIS) | — | S0058740 | 2011-08-26 | Inactive | |
| CASTLEFIELD COMMUNICATIONS | — | FM0104754 | 1990-02-13 | Active | |
| CASTLEFORD ARCHITECTURAL MOULDINGS | — | FM0401566 | 2005-07-04 | Active | |