| WILLIAMSON INSURANCE AGENCY | — | FM0036638 | 1981-02-18 | Active | |
| WILLIAMSON LAND SURVEYING 2017 INC. | — | BC1143689 | 2017-12-05 | Inactive | |
| WILLIAMSON MANAGEMENT GROUP INC. | — | BC1271137 | 2020-10-22 | Active | |
| WILLIAMSON MANAGEMENT LTD. | — | BC0496171 | 1995-05-09 | Inactive | |
| WILLIAMSON MECHANICAL AND CONTRACTING LTD. | — | BC1471943 | 2024-03-21 | Active | |
| WILLIAMSON MEDICAL LABORATORY CONSULTATION SERVICES LTD. | — | BC0471236 | 1994-04-20 | Inactive | |
| WILLIAMSON MOBILE DETAILING | — | FM0610203 | 2013-06-20 | Active | |
| WILLIAMSON PACIFIC DEVELOPMENTS INC. | — | BC0377094 | 1989-11-27 | Inactive | |
| WILLIAMSON PERFORMANCE FITNESS | — | FM0767558 | 2019-02-05 | Active | |
| WILLIAMSON PRINTING MATERIALS LIMITED | — | A0006921 | — | Inactive | |
| WILLIAMSON TECHNOLOGIES | — | FM0214849 | 1997-02-21 | Active | |
| WILLIAMSON TRANSPORT LTD. | — | BC0100040 | 1971-05-04 | Inactive | |
| WILLIAMSON TRANSPORTATION LTD. | — | A0045849 | 1997-09-26 | Inactive | |
| WILLIAMSON VALUATION AND LITIGATION SUPPORT LTD. | — | BC1095078 | 2016-10-31 | Active | |
| WILLIAMSON VETERINARY HOUSECALL SERVICES INC. | — | BC1126525 | 2017-07-13 | Inactive | |
| WILLIAMSON WINDOWS INC. | — | BC1540874 | 2025-05-23 | Active | |
| WILLIAMSON WOODWORKS LTD. | — | BC0451581 | 1993-07-26 | Inactive | |
| WILLIAMSON WORLDWIDE WEB SOLUTIONS, LTD. | — | BC0942191 | 2012-06-04 | Inactive | |
| WILLIAMSON'S CAMERA & HI-FI CENTRE LTD. | — | BC0035345 | 1955-12-30 | Inactive | |
| WILLIAMSON'S CLEANING SERVICES | — | FM0224962 | 1997-08-11 | Active | |
| WILLIAMSON'S DRIVER SERVICE | — | FM0207110 | 1996-10-01 | Active | |
| WILLIAMSON'S FUNERAL DIRECTORS' SERVICES | — | FM0086656 | 1988-04-11 | Active | |
| WILLIAMSON'S LANDSCAPE MAINTENANCE | — | FM0365523 | 2004-02-16 | Active | |
| WILLIAMSON'S PATIENT TRANSFER SERVICES | — | FM0128032 | 1992-03-12 | Active | |
| WILLIAMSON'S PLANT WORLD LTD. | — | BC0198696 | 1979-10-19 | Inactive | |
| WILLIAMSON'S PLUMBING LTD. | — | BC0132860 | 1974-11-19 | Inactive | |
| WILLIAMSON'S TRANSFER SERVICES | — | FM0689352 | 2016-05-17 | Active | |
| WILLIAMSON-SLEIGH LTD. | — | BC0093267 | — | Inactive | |
| WILLIAMSONS LANDING FIRE PROTECTION SOCIETY | — | S0054887 | 2009-03-27 | Active | |
| WILLIAMSPORT DEVELOPMENT INC. | — | BC0282350 | 1984-09-07 | Inactive | |
| WILLIAMSTEA INC. | — | BC0913597 | 2011-06-21 | Inactive | |
| WILLIAMSVILLE ENTERPRISES INC. | — | BC0232638 | 1981-04-22 | Inactive | |
| WILLIANITA ENTERPRISES LTD. | — | BC0374453 | 1989-10-18 | Inactive | |
| WILLIARDO&DELIA HOLDINGS INC. | — | BC0990779 | 2014-01-13 | Active | |
| WILLICK BROS. CONTRACTING LTD. | — | BC0406308 | 1991-05-21 | Active | |
| WILLICOME SERVICES | — | FM0415006 | 2006-01-19 | Active | |
| WILLIE & CHLOE'S PIANO LTD. | — | BC1544675 | 2025-06-18 | Inactive | |
| WILLIE & EVELYN'S PHOTO FACTORY | — | FM0313117 | 2001-11-28 | Active | |
| WILLIE & MIKE'S HOLDINGS LTD. | — | BC0348244 | 1988-07-08 | Active | |
| WILLIE BAO SOLUTIONS | — | FM1010895 | 2023-03-07 | Active | |
| WILLIE BERGIN COACHING | — | FM1044595 | 2024-04-24 | Active | |
| WILLIE BLUE SNACK SHOP | — | FM0151551 | 1993-11-01 | Active | |
| WILLIE BLUES SNACK SHOP INC. | — | BC0126511 | 1974-03-27 | Inactive | |
| WILLIE CHEY FINANCIAL SERVICES, INC. | — | A0103195 | 2017-07-24 | Active | |
| WILLIE CONSTRUCTION LTD. | — | BC0387432 | 1990-05-15 | Inactive | |
| WILLIE D'S VENDING INC. | — | BC0807684 | 2007-11-06 | Inactive | |
| WILLIE GEORGE MINISTRIES CANADA SOCIETY | — | S0021218 | 1986-04-18 | Inactive | |
| WILLIE HALL CONSULTING LTD. | — | A0019455 | 1982-04-23 | Inactive | |
| WILLIE INVESTMENTS LTD. | — | BC0142896 | 1975-11-20 | Inactive | |
| WILLIE J. PEWARCHUK M.D., FRCP(C) INC. | — | BC0638578 | 2001-12-07 | Active | |
| WILLIE LAURILA AND ASSOCIATES | — | FM0071598 | 1986-08-13 | Active | |
| WILLIE MCNEILLY ENTERPRISE | — | FM0389897 | 2005-02-09 | Active | |
| WILLIE MCNEILLY HOLDINGS LTD. | — | BC0412618 | 1991-09-19 | Inactive | |
| WILLIE MEIER ENTERPRISES LTD. | — | BC0200786 | 1979-11-30 | Inactive | |
| WILLIE MITCHELL CLASSIC SOCIETY | — | S0047593 | 2004-05-18 | Inactive | |
| WILLIE MULLER REGISTERED MASSAGE THERAPIST | — | FM0719576 | 2017-05-25 | Active | |
| WILLIE ODD JOBS | — | FM0146188 | 1993-06-28 | Active | |
| WILLIE QUAN TILE & PORCELAIN | — | FM1012521 | 2023-03-27 | Active | |
| WILLIE S. CHAN PERSONAL REAL ESTATE CORPORATION | — | BC0779149 | 2007-01-06 | Active | |
| WILLIE S. CHAN REALTY LTD. | — | BC0485842 | 1994-12-09 | Active | |
| WILLIE SETO SPORTS TRAINING LTD. | — | BC0593920 | 1999-10-12 | Inactive | |
| WILLIE WANG PERSONAL REAL ESTATE CORPORATION | — | BC1572179 | 2026-01-11 | Active | |
| WILLIE WOOZLE | — | FM0131178 | 1992-06-19 | Active | |
| WILLIE WOOZLE ENTERPRISES LTD. | — | BC0372405 | 1989-09-11 | Inactive | |
| WILLIE WOOZLE ENTERPRISES LTD. | — | BC0102345 | 1971-08-23 | Inactive | |
| WILLIE WOOZLE SUPERSTORE | — | FM0125777 | 1991-12-20 | Active | |
| WILLIE WORKS PRODUCTIONS INC. | — | BC0901528 | 2011-01-27 | Inactive | |
| WILLIE'S 709 YATES STREET LTD. | — | BC1052079 | 2015-10-14 | Inactive | |
| WILLIE'S BAKERY & MARKET CAFE | — | FM0260783 | 1999-06-10 | Active | |
| WILLIE'S CAFE | — | FM0349603 | 2003-06-13 | Active | |
| WILLIE'S CARS & TRUCKS LTD. | — | BC0668045 | 2003-04-16 | Inactive | |
| WILLIE'S CONTRACTING LTD. | — | BC1033578 | 2015-04-15 | Active | |
| WILLIE'S COTTAGE GALLERY | — | FM0298175 | 2001-03-22 | Active | |
| WILLIE'S ELECTRIC | — | FM0511223 | 2009-09-15 | Active | |
| WILLIE'S FINE FOODS LTD. | — | BC0634398 | 2001-09-24 | Inactive | |
| WILLIE'S GAS WORKS LTD. | — | BC0423099 | 1992-03-30 | Inactive | |
| WILLIE'S GROCERS | — | FM0020964 | 1976-03-30 | Active | |
| WILLIE'S JEANS STORES LTD. | — | BC0186734 | 1979-02-16 | Inactive | |
| WILLIE'S LOGGING LTD. | — | BC0332081 | 1987-08-19 | Inactive | |
| WILLIE'S MOTORCYCLE SERVICE | — | FM0051803 | 1984-02-01 | Active | |
| WILLIE'S RENDEZVOUS INC. | — | BC0203575 | 1980-01-29 | Inactive | |
| WILLIE'S SEPTIC TANKS | — | FM0002172 | 1968-02-09 | Active | |
| WILLIE'S SEPTIC TANKS (1984) LTD. | — | BC0285327 | 1984-11-22 | Inactive | |
| WILLIE'S SEPTIC TANKS LTD. | — | BC0104474 | 1971-11-29 | Inactive | |
| WILLIE'S STUCCO | — | FM0024911 | 1977-12-02 | Active | |
| WILLIE'S WEENIES | — | FM0423636 | 2006-05-04 | Active | |
| WILLIE'S WELDING & FABRICATION LTD. | — | BC0202819 | 1980-01-15 | Inactive | |
| WILLIE'S YARD GARDENING & MORE | — | FM0553563 | 2011-04-01 | Active | |
| WILLIE-JIM HOLDINGS LTD. | — | BC0077338 | 1967-12-22 | Active | |
| WILLIE-SAM BUSINESS AND IMMIGRATION CONSULTING ENTERPRISES | — | FM0194939 | 1996-02-29 | Active | |
| WILLIEJOES FOOD SERVICE | — | FM0689943 | 2016-05-26 | Active | |
| WILLIES AUTO PAINT | — | FM0106773 | 1990-04-19 | Active | |
| WILLIES BOAT MOVING (1981) LTD. | — | BC0225385 | 1981-01-28 | Inactive | |
| WILLIES BOAT MOVING LTD. | — | BC0109071 | 1972-05-18 | Inactive | |
| WILLIES CAFE | — | FM0335136 | 2002-11-20 | Inactive | |
| WILLIES SOAP AND WHOLESOME GOODS CO. | — | FM0813311 | 2020-08-05 | Active | |
| WILLIEWIN RANCH LTD. | — | BC0073119 | 1967-02-27 | Active | |
| WILLIGAN'S WILDERNESS SCHOOL | — | FM0310132 | 2001-10-11 | Active | |
| WILLILIX MARKETING | — | FM0179438 | 1995-05-16 | Active | |
| WILLIN ENTERPRISES | — | FM0156251 | 1994-02-25 | Active | |
| WILLINDY ENTERPRISES | — | FM0581042 | 2012-04-13 | Active | |
| WILLING & ABLE HOME IMPROVEMENTS | — | FM0564244 | 2011-08-23 | Active | |
| WILLING & ABLE PC TRAINING & CONSULTING | — | FM0147560 | 1993-07-27 | Active | |
| WILLING 2 NINJA | — | FM1024759 | 2023-08-31 | Active | |
| WILLING 2 NINJA ATHLETICS CORP. | — | BC1428373 | 2023-07-18 | Active | |
| WILLING CONSULTING INC. | — | BC1366005 | 2022-06-03 | Active | |
| WILLING DOCS SERVICES | — | FM0780038 | 2019-06-14 | Active | |
| WILLING EDUCATION INC. | — | BC1475601 | 2024-04-12 | Active | |
| WILLING ENTERPRISE LTD. | — | BC0530044 | 1996-10-30 | Inactive | |
| WILLING ENTERPRISES | — | FM0123812 | 1991-10-15 | Active | |
| WILLING HANDS FOR HELP | — | S0010512 | 1973-10-17 | Inactive | |
| WILLING HANDS LAWN AND GARDEN CARE | — | FM0515518 | 2009-11-12 | Active | |
| WILLING HEARTS INTERNATIONAL SOCIETY - CANADA | — | S0047856 | 2004-07-20 | Active | |
| WILLING HORSE TRANSPORT LTD. | — | BC1531446 | 2025-03-14 | Active | |
| WILLING HORSES HORSEMANSHIP | — | FM0506465 | 2009-07-06 | Active | |
| WILLING INVESTMENTS LTD. | — | BC0762438 | 2006-07-04 | Active | |
| WILLING WAYNE THE DISCOUNTER LTD. | — | BC0094420 | 1970-06-30 | Inactive | |
| WILLING WORKER SERVICES | — | FM0132204 | 1992-07-20 | Active | |
| WILLING WORKERS | — | FM0237123 | 1998-04-03 | Active | |
| WILLINGDON (AQ/MIB/TWN) GENERAL PARTNER LTD. | — | BC0817942 | 2008-02-28 | Active | |
| WILLINGDON / DAWSON AUTO LTD. | — | BC0552049 | 1997-10-10 | Inactive | |
| WILLINGDON 2000 DEVELOPMENT SOCIETY | — | S0031742 | 1994-03-23 | Inactive | |
| WILLINGDON 6390 INVESTMENT LTD. | — | BC1115510 | 2017-04-18 | Active | |
| WILLINGDON 6390 NOMINEE LTD. | — | BC1123659 | 2017-06-20 | Active | |
| WILLINGDON AGENCIES LIMITED | — | BC0022838 | — | Inactive | |
| WILLINGDON AUTO WRECKERS & AUTO ACCESSORIES LTD. | — | BC0045944 | — | Inactive | |
| WILLINGDON AVENUE (LOT E) INVESTMENTS LTD. | — | BC1020662 | 2014-12-02 | Inactive | |
| WILLINGDON AVENUE (LOT F) INVESTMENTS LTD. | — | BC1051351 | 2015-10-07 | Inactive | |
| WILLINGDON AVENUE DEVELOPMENTS LIMITED PARTNERSHIP | — | LP0673949 | 2015-11-05 | Active | |
| WILLINGDON AVENUE DEVELOPMENTS LTD. | — | BC1053946 | 2015-10-30 | Active | |
| WILLINGDON AVENUE INVESTMENTS LTD. | — | BC1423335 | 2023-06-22 | Active | |
| WILLINGDON BARBER SHOP | — | FM0010005 | 1972-05-19 | Inactive | |
| WILLINGDON BARBER SHOPS LTD. | — | BC0086741 | — | Inactive | |
| WILLINGDON BEACH HUT | — | FM0803663 | 2020-04-15 | Active | |
| WILLINGDON BEACH KAYAK CANOE BIKE RENTALS | — | FM0324339 | 2002-05-31 | Active | |
| WILLINGDON CARE CENTRE LTD. | — | BC0305271 | 1986-02-26 | Active | |
| WILLINGDON CATERERS LTD. | — | BC0318591 | 1986-12-08 | Inactive | |
| WILLINGDON CENTRE LTD. | — | BC0110568 | — | Inactive | |
| WILLINGDON CHARITABLE HOLDINGS SOCIETY | — | S0050391 | 2006-03-15 | Active | |
| WILLINGDON CHURCH | — | S0050390 | 2006-03-15 | Active | |
| WILLINGDON CRISIS PREGNANCY HOME SOCIETY | — | S0022480 | 1987-05-27 | Inactive | |
| WILLINGDON DAY CARE CENTER | — | S0010816 | 1974-04-04 | Inactive | |
| WILLINGDON DENTAL CENTRE | — | FM0882130 | 2022-06-01 | Active | |
| WILLINGDON DEVELOPMENTS (AQ/MIB/TWN) LIMITED PARTNERSHIP | — | LP0629437 | 2014-03-18 | Active | |
| WILLINGDON DEVELOPMENTS LTD. | — | BC0065845 | — | Inactive | |
| WILLINGDON DISTRIBUTORS | — | FM0024754 | 1977-11-10 | Active | |
| WILLINGDON ENTERPRISES LTD. | — | BC0108098 | 1972-04-14 | Inactive | |
| WILLINGDON FIGURE SKATING CLUB | — | S0004934 | — | Inactive | |
| WILLINGDON FURNITURE (1959) LTD. | — | BC0045468 | — | Inactive | |
| WILLINGDON HEIGHTS COMMUNITY CENTRE ASSOCIATION | — | S0003704 | — | Inactive | |
| WILLINGDON HEIGHTS EYECARE OPTOMETRY | — | FM0754287 | 2018-08-10 | Active | |
| WILLINGDON HOLDINGS LTD. | — | BC0039453 | — | Inactive | |
| WILLINGDON HOLDINGS LTD. | — | BC0131560 | 1974-09-23 | Inactive | |
| WILLINGDON HOLDINGS LTD. | — | BC0417472 | 1991-12-20 | Inactive | |
| WILLINGDON HOSPITAL LTD. | — | BC0054603 | 1962-09-21 | Inactive | |
| WILLINGDON INTERNATIONAL EDUCATION LTD. | — | BC0748248 | 2006-02-18 | Inactive | |
| WILLINGDON INVESTMENTS GROUP CORPORATION | — | BC0984254 | 2013-10-29 | Inactive | |
| WILLINGDON INVESTMENTS LTD. | — | BC0052343 | — | Inactive | |
| WILLINGDON LANDS INC. | — | A0063542 | 2004-10-26 | Inactive | |
| WILLINGDON MANAGEMENT LTD. | — | BC0042265 | — | Inactive | |
| WILLINGDON MANOR LTD. | — | BC0178498 | 1978-08-01 | Inactive | |
| WILLINGDON MEATS LTD. | — | BC0088940 | — | Inactive | |
| WILLINGDON PARK 1501 LP | — | XP0740940 | 2018-02-23 | Inactive | |
| WILLINGDON PARK 1501 OWNER GP LTD. | — | BC1152829 | 2018-02-14 | Inactive | |
| WILLINGDON PARK 1502 LP | — | XP0740941 | 2018-02-23 | Inactive | |
| WILLINGDON PARK 1502 OWNER GP LTD. | — | BC1152826 | 2018-02-14 | Inactive | |
| WILLINGDON PARK 1505 LP | — | XP0740942 | 2018-02-23 | Inactive | |
| WILLINGDON PARK 1505 OWNER GP, LLC | — | LLC0000937 | 2018-02-23 | Inactive | |
| WILLINGDON PARK 1506 LP | — | XP0740934 | 2018-02-23 | Inactive | |
| WILLINGDON PARK 1506 OWNER GP, LLC | — | LLC0000938 | 2018-02-23 | Inactive | |
| WILLINGDON PARK 1507 LP | — | XP0740946 | 2018-02-23 | Inactive | |
| WILLINGDON PARK 1507 OWNER GP, LLC | — | LLC0000939 | 2018-02-23 | Inactive | |
| WILLINGDON PARK BUSINESS CENTRE INC. | — | BC0535047 | 1997-01-21 | Inactive | |
| WILLINGDON PARK MASTER GP LTD. | — | BC1152830 | 2018-02-14 | Inactive | |
| WILLINGDON PARK MASTER LP | — | XP0740943 | 2018-02-23 | Active | |
| WILLINGDON PIZZA LTD. | — | BC1054017 | 2015-10-30 | Active | |
| WILLINGDON PLACE LIMITED | — | BC0009948 | — | Inactive | |
| WILLINGDON PROPERTIES LIMITED | — | C0205963 | 1980-03-07 | Inactive | |
| WILLINGDON ROSE DEVELOPMENTS | — | FM0844065 | 2021-05-03 | Active | |
| WILLINGDON ROSE HOUSING CO-OPERATIVE | — | CP1032165 | 2024-08-30 | Active | |
| WILLINGDON SERVICE STATION LTD. | — | BC0157754 | 1977-02-09 | Inactive | |
| WILLINGDON SERVICES LTD. | — | BC0871775 | 2010-01-20 | Inactive | |
| WILLINGDON SITE SERVICES LTD. | — | BC1533669 | 2025-03-31 | Active | |
| WILLINGDON STORAGE YARD | — | FM0827908 | 2020-12-22 | Active | |
| WILLINGDON TRAILER MANUFACTURERS LTD. | — | BC0059092 | — | Inactive | |
| WILLINGDONE APPLIED SERVICES | — | FM0338440 | 2003-01-21 | Active | |
| WILLINGHAM CONTRACTING | — | FM0831923 | 2021-02-05 | Active | |
| WILLINGHAM CONTRACTING | — | FM0612357 | 2013-07-17 | Active | |
| WILLINGHAM SERVICES CANADA INC. | — | BC0381363 | 1990-02-05 | Inactive | |
| WILLINGHAM SERVICES CANADA INC. | — | BC0951450 | 2012-09-28 | Active | |
| WILLINGS MULTIMEDIA | — | FM0365790 | 2004-02-18 | Active | |
| WILLINGTON CONSTRUCTION LTD. | — | BC0874068 | 2010-02-17 | Inactive | |
| WILLINGTON CONTRACTING LTD. | — | BC0778586 | 2006-12-29 | Inactive | |
| WILLINGTON INTERNATIONAL ACADEMY LTD. | — | BC0592239 | 1999-09-10 | Inactive | |
| WILLINGTON INTERNATIONAL INVESTMENT INC. | — | BC1140882 | 2017-11-10 | Active | |
| WILLINGTON INVESTMENTS CORP. | — | A0037087 | 1993-05-13 | Inactive | |
| WILLINGTON MARTIN PROFESSIONAL CORPORATION | — | A0108952 | 2019-03-04 | Inactive | |
| WILLIS | — | FM0626365 | 2014-02-06 | Active | |
| WILLIS & CO. OF CANADA LTD. | — | A0013710 | — | Inactive | |
| WILLIS & THORPE PHOTOGRAPHICS | — | FM0018846 | 1975-08-18 | Inactive | |