| O & G PROPERTIES LTD. | — | BC0389957 | 1990-07-04 | Inactive | |
| O & G SAND & GRAVEL LTD. | — | BC0951435 | 2012-09-28 | Active | |
| O & GEE HOLDINGS | — | FM0193057 | 1996-01-29 | Active | |
| O & GJM INVESTMENT GROUP LTD. | — | BC0700652 | 2004-07-27 | Inactive | |
| O & H CABINET MAKERS LTD. | — | BC0090129 | — | Inactive | |
| O & H DEVELOPMENT LTD. | — | BC0126671 | 1974-04-01 | Inactive | |
| O & H FISHING COMPANY LTD. | — | BC0530892 | 1996-11-12 | Inactive | |
| O & H SALES INC. | — | BC0162176 | 1977-06-01 | Inactive | |
| O & H SERVICES | — | FM0150777 | 1993-10-14 | Active | |
| O & H SERVICES LTD. | — | BC0615303 | 2000-10-04 | Inactive | |
| O & H TRANSPORT LTD. | — | BC0204737 | 1980-02-15 | Inactive | |
| O & HOPE TECHNOLOGIES INC. | — | BC1334144 | 2021-11-19 | Active | |
| O & I HOME RENOVATIONS | — | FM0130254 | 1992-05-21 | Active | |
| O & J CLEANING SERVICES INC. | — | BC1047241 | 2015-08-27 | Inactive | |
| O & J ENTERPRISES LTD. | — | BC0943041 | 2012-06-13 | Active | |
| O & J FREEMAN HOLDINGS LTD. | — | BC1467339 | 2024-02-23 | Active | |
| O & J FUTURE SOLUTIONS CO. | — | FM0837603 | 2021-03-15 | Active | |
| O & J KASPER HOLDINGS LTD. | — | BC0215352 | 1980-08-28 | Active | |
| O & J MASONRY INC. | — | BC0435148 | 1992-11-03 | Inactive | |
| O & J WINDOW CONTRACT | — | FM0607337 | 2013-05-11 | Inactive | |
| O & K BEVERAGE LTD. | — | BC0508999 | 1995-11-27 | Inactive | |
| O & K CONSTRUCTION LTD. | — | BC0715817 | 2005-02-07 | Active | |
| O & K ORENSTEIN & KOPPEL INC. | — | A0041959 | 1995-11-21 | Inactive | |
| O & K RESTAURANT LTD. | — | BC0595272 | 1999-11-05 | Active | |
| O & K TECHNOLOGIES INC. | — | BC0645021 | 2002-04-04 | Inactive | |
| O & K TRACT DEVELOPMENTS LTD. | — | BC0234485 | 1981-05-13 | Inactive | |
| O & L HOLDINGS LTD. | — | BC0579387 | 1999-02-02 | Inactive | |
| O & L HOLDINGS LTD. | — | BC0292506 | 1985-05-14 | Inactive | |
| O & L INDUSTRIES | — | FM0042252 | 1982-04-22 | Active | |
| O & L PROPERTIES INC. | — | BC1068815 | 2016-03-17 | Active | |
| O & L SOLUTIONS | — | FM0352793 | 2003-08-01 | Active | |
| O & M AUTO REPAIR LTD. | — | BC1113854 | 2017-04-04 | Inactive | |
| O & M CONSULTING LTD. | — | BC0249604 | 1982-03-11 | Inactive | |
| O & M CONTRACTING LTD. | — | BC0303716 | 1986-01-28 | Inactive | |
| O & M ENTERPRISES | — | FM0516533 | 2009-11-26 | Active | |
| O & M FISH CO. | — | FM0067934 | 1986-03-17 | Active | |
| O & M HOLDINGS CORP. | — | BC0664059 | 2003-02-17 | Inactive | |
| O & M HOLDINGS LTD. | — | BC0504554 | 1995-09-20 | Inactive | |
| O & M HOLDINGS LTD. | — | BC0067155 | — | Inactive | |
| O & M HOLDINGS LTD. | — | BC0207466 | 1980-03-31 | Inactive | |
| O & M INVESTMENTS LTD | — | A0048383 | 1998-11-16 | Active | |
| O & M OVERHEAD DOOR CO. | — | FM0009180 | 1971-12-30 | Active | |
| O & M PRECISION SHARPENING LTD. | — | BC0261109 | 1983-03-07 | Inactive | |
| O & M PRECISION SHARPENING LTD. | — | BC0324139 | 1987-03-27 | Inactive | |
| O & M PRODUCTIONS LTD. | — | BC0554758 | 1997-11-24 | Active | |
| O & M PRODUCTS | — | FM0743831 | 2018-03-28 | Active | |
| O & M TRUCKING LTD. | — | BC0135792 | 1975-03-20 | Inactive | |
| O & N CONSTRUCTION | — | FM1067554 | 2025-02-11 | Active | |
| O & N ENTERPRISES LTD. | — | BC0133509 | 1974-12-18 | Inactive | |
| O & N HOLDINGS LTD. | — | BC0444265 | 1993-04-06 | Inactive | |
| O & O DEVELOPMENT CORPORATION | — | C0711357 | 2004-12-16 | Inactive | |
| O & O ENTERPRISES LTD. | — | BC0099517 | 1971-04-06 | Inactive | |
| O & O HOLDINGS LTD. | — | BC0099342 | 1971-03-26 | Inactive | |
| O & O SECOND CUP & FRESHII RESTAURANT BURNABY LTD. | — | BC1456173 | 2023-12-20 | Active | |
| O & P ENTERPRISES | — | FM0141094 | 1993-03-15 | Inactive | |
| O & P REAL ESTATE INVESTMENT INC. | — | BC0978671 | 2013-08-23 | Inactive | |
| O & R ENTERTAINMENT PARTNERSHIP | — | FM0360388 | 2003-11-27 | Active | |
| O & R FOUNDATION | — | S0085799 | 2026-07-23 | Active | |
| O & R HOLDINGS LTD. | — | BC0140658 | 1975-08-29 | Inactive | |
| O & R JOHNSON CO. LTD. | — | BC0041774 | — | Inactive | |
| O & R PIPE TUB CO. LTD. | — | BC0128609 | 1974-05-31 | Inactive | |
| O & R RESTAURANTS INC. | — | BC1141281 | 2017-11-15 | Active | |
| O & R TRUCKING LTD. | — | A0005020 | — | Inactive | |
| O & S AUTO DYNAMIC ENTERPRISES | — | FM0034347 | 1980-07-03 | Inactive | |
| O & S ENGINEERING INTERNATIONAL INC. | — | BC0357656 | 1989-01-09 | Active | |
| O & S FOOD LTD. | — | BC1359503 | 2022-04-25 | Active | |
| O & S GHANAIAN FABRICS, ARTS/CRAFTS | — | FM0802588 | 2020-04-01 | Active | |
| O & T CONCRETE FINISHING | — | FM0325377 | 2002-06-17 | Active | |
| O & T FRANCHISE LTD. | — | BC0844695 | 2009-01-30 | Inactive | |
| O & T TRADING INC. | — | BC0315708 | 1986-10-07 | Inactive | |
| O & U CONSTRUCTION | — | FM0100321 | 1989-08-23 | Active | |
| O & U HOLDINGS LTD. | — | BC0625665 | 2001-04-06 | Inactive | |
| O & V CONTRACTING LTD. | — | BC0098312 | — | Inactive | |
| O & W CONSTRUCTION LTD. | — | BC0535192 | 1997-01-22 | Inactive | |
| O & W CONTRACTORS LTD. | — | BC0047760 | 1960-05-06 | Inactive | |
| O & W ENTERPRISES INC. | — | BC0211268 | 1980-06-11 | Inactive | |
| O & W IMBISS LTD. | — | BC0178094 | 1978-07-20 | Inactive | |
| O & W LEASING LTD. | — | BC0160423 | 1977-04-15 | Inactive | |
| O & W SALAD MARKET FOOD PROCESSORS INC. | — | BC0248437 | 1982-02-04 | Inactive | |
| O & Y ENTERPRISE (B.C.) | — | FM0241633 | 1998-06-17 | Active | |
| O & Y ENTERPRISES LTD. | — | BC0361019 | 1989-03-06 | Inactive | |
| O & Z ENTERPRISES | — | FM0557472 | 2011-05-19 | Inactive | |
| O 2 JOY ENTERTAINMENT, INC. | — | A0073249 | 2007-12-21 | Inactive | |
| O A K AND E L M PROJECTS LTD. | — | BC1273190 | 2020-11-04 | Active | |
| O A S OILFIELD ACCOUNTING SERVICE LTD. | — | A0017095 | 1980-09-15 | Inactive | |
| O A SOLUTIONS | — | FM0294273 | 2001-01-23 | Active | |
| O A SOLUTIONS INC. | — | A0053655 | 2001-01-23 | Inactive | |
| O ALTAR PRODUCTIONS INC. | — | BC1132607 | 2017-09-01 | Inactive | |
| O AND A SERVICES CLEANING | — | FM0680057 | 2016-02-02 | Inactive | |
| O AND G INGENIERIE SOLUTIONS LTD. | — | BC1565207 | 2025-11-27 | Active | |
| O AND J TRUCKING LTD. | — | BC0934052 | 2012-03-01 | Inactive | |
| O AND K PASTRIES LTD. | — | BC0171683 | 1978-02-24 | Inactive | |
| O AND L DRILLING AND BLASTING | — | FM1017335 | 2023-05-24 | Active | |
| O AND M EARTH GOODS | — | FM0179148 | 1995-05-10 | Active | |
| O AND M ENTERPRISES INC. | — | BC1089746 | 2016-09-16 | Active | |
| O AND M ENTERPRISES LTD. | — | BC0205959 | 1980-03-07 | Inactive | |
| O AND R JANITORIAL SERVICE | — | FM0082179 | 1987-10-26 | Active | |
| O AND R SAWDUST AND TRANSFER LIMITED | — | BC0045281 | — | Inactive | |
| O AND ZO VENTURES INC. | — | BC1335755 | 2021-12-01 | Inactive | |
| O APOTHECARY | — | FM0888931 | 2022-08-26 | Active | |
| O B CANADA INC. | — | A0010010 | — | Inactive | |
| O B I CONTRACTING LTD. | — | BC1130767 | 2017-08-18 | Active | |
| O B PAINTS, CABINETS & GLASS LTD. | — | BC0096961 | 1970-11-27 | Inactive | |
| O BABY GOURMET | — | FM0368539 | 2004-03-24 | Active | |
| O BENTO ENTERPRISES LTD. | — | BC0999583 | 2014-04-15 | Active | |
| O BIZ SOLUTIONS | — | FM0779806 | 2019-06-12 | Active | |
| O BRIAN'S MOTOR CARTAGE LTD. | — | BC0641615 | 2002-02-06 | Inactive | |
| O BUILDING CANADA INC. | — | A0038371 | 1994-01-19 | Inactive | |
| O C & D(OFFICE CLEANING & DETAILING SERVICES) | — | FM0608126 | 2013-05-22 | Active | |
| O C DESIGN | — | FM0477165 | 2008-05-06 | Active | |
| O C DESIGN & TECHNOLOGY VENTURES LTD. | — | BC0982330 | 2013-10-07 | Inactive | |
| O C ENTERPRISES INC. | — | BC0417058 | 1991-12-13 | Inactive | |
| O C J CONSULTING LTD. | — | BC0204364 | 1980-02-11 | Inactive | |
| O CAN CARPET INSTALLATIONS | — | FM0221765 | 1997-06-17 | Active | |
| O CANADA DRYWALL LTD. | — | BC1084248 | 2016-07-27 | Active | |
| O CANADA EH WEAR | — | FM0305050 | 2001-07-12 | Active | |
| O CANADA HOUSE B & B INC. | — | BC0625487 | 2001-04-04 | Active | |
| O CANADA MAGAZINE | — | FM0329011 | 2002-08-15 | Active | |
| O CANADA PROPERTIES LTD. | — | BC1062176 | 2016-01-21 | Inactive | |
| O CANADA SWIMMING SERVICES | — | FM0359256 | 2003-11-12 | Active | |
| O CEE BEE'S GENERAL RADIO CLUB | — | S0007378 | 1966-04-29 | Inactive | |
| O CLEANING | — | FM0819124 | 2020-10-05 | Active | |
| O CRYSTAL PROMOTIONS INC. | — | BC0781681 | 2007-02-02 | Inactive | |
| O D L TRANSPORT SERVICES | — | FM1057001 | 2024-09-26 | Active | |
| O D W DOMESTYLE STRUCTURES LTD. | — | A0018498 | — | Inactive | |
| O D Z MANAGEMENT LTD. | — | BC0854515 | 2009-06-16 | Inactive | |
| O DE C WORLD BEAUTIFICATION PROJECT INC. | — | BC0595431 | 1999-11-09 | Inactive | |
| O DEAR EVENTS PLANNING CLUB | — | S0072505 | 2020-01-06 | Active | |
| O DELIGHT INVESTMENT LTD. | — | BC1090442 | 2016-09-22 | Inactive | |
| O DESIRES ADULT ACCESSORIES INC. | — | BC1253603 | 2020-06-16 | Inactive | |
| O DIOMASACH PLASTERING CONTRACTOR | — | FM0710165 | 2017-02-15 | Active | |
| O DIOMASACH SCAFFOLDING LTD. | — | BC1220605 | 2019-08-23 | Active | |
| O DONUTS | — | FM0590802 | 2012-09-06 | Active | |
| O DUNSTAN HOLDINGS INC. | — | BC1537756 | 2025-05-01 | Active | |
| O E M ENTERPRISES INC. | — | BC0490451 | 1995-02-13 | Inactive | |
| O F S FOOD SERVICES | — | FM0331234 | 2002-09-24 | Active | |
| O FOOT SPA | — | FM0542545 | 2010-11-08 | Active | |
| O G TRUCKING INC. | — | BC0768526 | 2006-09-11 | Active | |
| O GEE PUBLICATIONS | — | FM0050606 | 1983-11-25 | Active | |
| O H & S CONSULTING LTD. | — | BC0806988 | 2007-10-30 | Inactive | |
| O HAGAN WOOD DESIGN | — | FM0608968 | 2013-06-05 | Active | |
| O HAIR ENTERPRISES | — | FM0631734 | 2014-04-15 | Active | |
| O HAPPY SITE CONSTRUCTION | — | FM0180735 | 1995-06-07 | Active | |
| O HAPPY SITE CONTRACTING | — | FM0160169 | 1994-05-11 | Inactive | |
| O HAYER HOLDINGS LTD. | — | BC1287586 | 2021-02-04 | Active | |
| O I C SECURITY CORP. | — | BC0215944 | 1980-09-10 | Inactive | |
| O J MICRO COMPUTER SYS. LTD. | — | BC0179274 | 1978-08-21 | Inactive | |
| O K AUTO CENTRE LTD. | — | BC0154471 | 1976-11-04 | Inactive | |
| O K BUILDERS CENTRE LTD. | — | BC0118966 | — | Inactive | |
| O K CAR WASH SYSTEMS LTD. | — | BC0177518 | 1978-07-06 | Inactive | |
| O K CATTLE CO. LTD. | — | BC0114332 | 1972-12-19 | Inactive | |
| O K COLOR LAB LTD. | — | BC0185229 | 1979-01-15 | Inactive | |
| O K COUNTER TOP REPAIRS | — | FM0178507 | 1995-04-25 | Active | |
| O K DEL PROPERTIES LTD. | — | BC0345407 | 1988-05-16 | Active | |
| O K FALLS BAKERY LTD. | — | BC0199206 | 1979-10-29 | Inactive | |
| O K FALLS PHARMACY LTD. | — | BC1468345 | 2024-02-29 | Active | |
| O K FALLS PHARMACY LTD. | — | BC0199163 | 1979-10-29 | Inactive | |
| O K HANDYWORKS | — | FM0209845 | 1996-11-18 | Active | |
| O K LABOUR CO. LTD. | — | BC0465306 | 1994-02-11 | Inactive | |
| O K LABOUR SERVICES | — | FM0036974 | 1981-03-16 | Active | |
| O K MARKETING | — | FM0172119 | 1994-12-20 | Active | |
| O K PHOTO FINISHING | — | FM0012737 | 1973-09-12 | Active | |
| O K RANCH LTD. | — | BC0073662 | 1967-04-05 | Inactive | |
| O K READY-MIX LTD. | — | BC0103859 | — | Inactive | |
| O K READY-MIX LTD. | — | BC0097441 | — | Inactive | |
| O K STUCCO & PLASTERING LTD. | — | BC0117859 | 1973-04-24 | Inactive | |
| O K V MOVING SYSTEMS | — | FM0399348 | 2005-06-06 | Active | |
| O K VALLEY DISTRIBUTORS LTD. | — | BC0122117 | 1973-09-26 | Inactive | |
| O K VALLEY GLOVE CO | — | FM0036886 | 1981-03-09 | Active | |
| O K VALLEY INSPECTION SERVICES | — | FM0278303 | 2000-04-05 | Active | |
| O K VALLEY SHOES | — | FM0025034 | 1977-12-21 | Active | |
| O K VENDING SERVICES | — | FM0022363 | 1976-12-17 | Active | |
| O K WINGMAN SERVICES INC. | — | BC0751446 | 2006-03-14 | Inactive | |
| O K WOOD PRESERVERS LIMITED | — | BC0071016 | — | Inactive | |
| O K WORK STYLE AND COMPANY | — | FM0360948 | 2003-12-05 | Active | |
| O KITCHEN FAST FOOD LTD. | — | BC1452315 | 2023-11-30 | Active | |
| O L C ENTERPRISES | — | FM0060596 | 1985-04-22 | Active | |
| O LIMON LLP | — | LL0002661 | 2023-10-10 | Active | |
| O LONG TRUCKING LTD. | — | BC1262597 | 2020-08-24 | Active | |
| O M DESIGN STUDIO INC. | — | BC1130466 | 2017-08-16 | Active | |
| O M INVESTMENTS LTD. | — | BC0142201 | 1975-10-27 | Inactive | |
| O M T ORION INNOVATIONS | — | FM0073258 | 1986-10-29 | Active | |
| O MANA MASSAGE | — | FM0463536 | 2007-11-02 | Active | |
| O MANN TRUCKING | — | FM0456143 | 2007-07-23 | Active | |
| O MI SONG | — | FM0875174 | 2022-03-23 | Active | |
| O MIO GELATO! | — | FM0631376 | 2014-04-10 | Active | |
| O MIRACLE VACATION LTD. | — | BC1251187 | 2020-05-25 | Active | |
| O MUNDO INVESTMENTS & HOLDINGS INC. | — | BC0997037 | 2014-03-19 | Inactive | |
| O MY CAKE BAKERY LTD. | — | BC1062203 | 2016-01-21 | Inactive | |
| O MY DESIGNS | — | FM0584663 | 2012-06-01 | Inactive | |
| O MY GODDESS HERBAL PRODUCTS | — | FM0536732 | 2010-08-20 | Active | |
| O MY MAH PRODUCTIONS INC. | — | BC0372137 | 1989-09-06 | Inactive | |
| O NINE DESIGN | — | FM0711690 | 2017-03-01 | Active | |
| O P INDUSTRIES INTERNATIONAL INCORPORATED | — | BC0383236 | 1990-03-02 | Inactive | |
| O P M CONSULTING LTD. | — | BC0507482 | 1995-10-31 | Inactive | |
| O P T CENTER LTD. | — | BC0216115 | 1980-09-12 | Inactive | |
| O P VIDEO SERVICES | — | FM0155942 | 1994-02-18 | Active | |
| O PACIFIC ENTERPRISES LTD. | — | BC0553559 | 1997-11-04 | Inactive | |
| O PARMAR BT148 D | — | FM0833036 | 2021-02-16 | Active | |
| O PETIT FRANCAIS | — | FM1068568 | 2025-02-22 | Active | |