| OONAGH LAND & CATTLE COMPANY LIMITED | — | BC0621038 | 2001-01-19 | Inactive | |
| OONIM HOLDINGS ONE ULC | — | BC1302816 | 2021-04-29 | Active | |
| OONIPAY PAYMENTS INC. | — | BC1192053 | 2018-12-28 | Inactive | |
| OONITI INTERNATIONAL LTD. | — | BC0666019 | 2003-03-18 | Active | |
| OOO HAPPY DAY PUPPETS AND PARTIES | — | FM0120346 | 1991-06-19 | Active | |
| OOO IP HOLDINGS INC. | — | BC1563906 | 2025-11-19 | Active | |
| OOO LA LA NAILS | — | FM0693928 | 2016-07-19 | Active | |
| OOO LIFE HEALTH INC. | — | A0141613 | 2026-04-20 | Active | |
| OOO OUT OF OFFICE SECRETARIAL SERVICES | — | FM0074420 | 1986-12-29 | Active | |
| OOOBNAL | — | FM1074694 | 2025-05-03 | Active | |
| OOOH CANADA | — | FM0852579 | 2021-07-09 | Active | |
| OOOH LA LA WOMANS CLOTHING | — | FM0601345 | 2013-02-20 | Active | |
| OOOLA TRAVEL INC. | — | A0094154 | 2015-01-05 | Inactive | |
| OOOLALA COLLECTION INC. | — | BC1461014 | 2024-01-16 | Active | |
| OOOLI BEVERAGES INC. | — | A0076352 | 2009-01-16 | Inactive | |
| OOOM DESIGN STUDIOS | — | FM0543140 | 2010-11-17 | Active | |
| OOOM DESIGN STUDIOS LTD. | — | BC0928497 | 2011-12-22 | Inactive | |
| OOOOO ENTERTAINMENT COMMERCE LIMITED | — | BC0938067 | 2012-04-16 | Active | |
| OOOST DEVELOPMENT PARTNERS | — | FM0304173 | 2001-06-25 | Active | |
| OOOX'S JEWELRY DESIGNS | — | FM0735819 | 2017-12-20 | Active | |
| OOP SYSTEMS | — | FM0295597 | 2001-02-14 | Active | |
| OOP'S A DAISY FLORAL DESIGNS | — | FM0295087 | 2001-02-07 | Active | |
| OOPA LELE HANDMADE JEWELLERY | — | FM0548957 | 2011-02-07 | Active | |
| OOPARTS ENTERPRISE INC. | — | BC1059046 | 2015-12-19 | Inactive | |
| OOPHAGA TATICAL | — | FM0623544 | 2014-01-02 | Active | |
| OOPLAH SPORTS INC. | — | BC0960091 | 2013-01-15 | Inactive | |
| OOPPSSS CHIC FASHION LTD. | — | A0088381 | 2013-02-16 | Inactive | |
| OOPS BOUTIQUE LTD. | — | BC1553797 | 2025-08-22 | Active | |
| OOPS CAFE | — | FM0492367 | 2008-12-19 | Inactive | |
| OOPS CAFE | — | FM0486093 | 2008-09-15 | Active | |
| OOPS CAFE | — | FM0519520 | 2010-01-13 | Active | |
| OOPS CAFE LTD. | — | BC0987059 | 2013-12-02 | Inactive | |
| OOPS CANADA | — | FM1062171 | 2024-12-06 | Active | |
| OOPS CONTRACTORS & PROPERTY MAINTENANCE | — | FM0266942 | 1999-09-29 | Active | |
| OOPS DEMOLITION INC. | — | BC0804111 | 2007-09-28 | Inactive | |
| OOPS ENTERPRISE LTD. | — | BC0755539 | 2006-04-22 | Inactive | |
| OOPS ENTERPRISES | — | FM0039642 | 1981-10-16 | Active | |
| OOPS GAMES INC. | — | BC1558145 | 2025-09-23 | Active | |
| OOPS HOSPITALITY PLUS TEMPORARY SERVICES | — | FM0219124 | 1997-04-30 | Inactive | |
| OOPS HOSPITALITY PLUS TEMPORARY SERVICES | — | FM0221343 | 1997-06-09 | Active | |
| OOPS MAGAZINE INC. | — | BC0982652 | 2013-10-09 | Inactive | |
| OOPS STONE SUPPLY LTD. | — | BC0608043 | 2000-05-30 | Inactive | |
| OOPSA DAISY CHILD CARE | — | FM0478559 | 2008-05-25 | Active | |
| OOPSI DAISY PETALS & PLANTS | — | FM0243460 | 1998-07-16 | Active | |
| OOPSIE DAISY | — | FM1021603 | 2023-07-18 | Active | |
| OOPZEE DAZEE INC. | — | A0130673 | 2024-01-11 | Active | |
| OOQUAI INVESTMENTS LTD. | — | BC0610043 | 2000-07-01 | Active | |
| OOQUAI INVESTMENTS LTD. | — | BC0228028 | 1981-02-27 | Inactive | |
| OORA COFFEE LTD. | — | BC1544404 | 2025-06-17 | Active | |
| OORA ENTERPRISE LTD. | — | BC1471956 | 2024-03-21 | Active | |
| OORAA FLOORING IMPORTS LTD. | — | BC0946434 | 2012-07-25 | Active | |
| OORAH CHARITABLE ORGANIZATION/OEUVRE DE BIENFAISANCE OORAH | — | XS0073736 | 2020-09-18 | Active | |
| OORANE DEVELOPMENT CORPORATION | — | BC0124745 | 1974-01-31 | Inactive | |
| OORD'S CONSTRUCTION (1980) LTD. | — | BC0210866 | 1980-06-04 | Inactive | |
| OORD'S CONSTRUCTION LTD. | — | BC0138003 | 1975-05-29 | Inactive | |
| OORI ARCHITECTURE INC. | — | BC1375691 | 2022-08-19 | Active | |
| OORJA MENTAL HEALTH SERVICES SOCIETY | — | S0074630 | 2021-03-24 | Active | |
| OORJA YOGA AND SOUND HEALING | — | FM1086085 | 2025-09-03 | Active | |
| OOSAKEMACHI JAPANESE RESTAURANT | — | FM0450488 | 2007-05-09 | Active | |
| OOSC AFTER SCHOOL CARE TRAINING AND RESOURCE CENTRE LTD. | — | C1362346 | 2022-05-11 | Inactive | |
| OOSCHAYTA DEVELOPMENT CORPORATION INC. | — | BC0800835 | 2007-08-27 | Inactive | |
| OOSHEW SOLUTIONS INC. | — | BC0883627 | 2010-06-15 | Active | |
| OOSIMCH KOMBUCHA | — | FM0718851 | 2017-05-16 | Active | |
| OOSS TECHNOLOGY CANADA LTD. | — | BC1111122 | 2017-03-15 | Active | |
| OOSTENBRINK FAMILY HOLDINGS LTD. | — | BC1039953 | 2015-06-16 | Inactive | |
| OOSTENBRINK HOLDINGS LTD. | — | BC0738633 | 2005-10-25 | Active | |
| OOSTERHOF CHIROPRACTIC INC. | — | BC1309875 | 2021-06-11 | Active | |
| OOSTERHOF CONSTRUCTION LTD. | — | BC0280911 | 1984-07-26 | Inactive | |
| OOSTEROM FARM LTD. | — | BC0781130 | 2007-01-29 | Active | |
| OOSTERVEEN CONSTRUCTION | — | FM0146421 | 1993-07-06 | Active | |
| OOSTHUIZEN CRYPTO | — | FM0837072 | 2021-03-11 | Active | |
| OOSTLANDER FARMS LTD. | — | BC0213251 | 1980-07-21 | Inactive | |
| OOT HOLDINGS INC. | — | A0092793 | 2014-07-20 | Inactive | |
| OOT HOLDINGS INC. | — | A0092670 | 2014-07-03 | Inactive | |
| OOTAT TATOOS | — | FM0880086 | 2022-05-12 | Active | |
| OOTB SOLUTIONS LTD. | — | BC1019787 | 2014-11-22 | Active | |
| OOTES PRESS LTD. | — | BC0133916 | 1975-01-10 | Inactive | |
| OOTISCHENIA COMMUNITY SOCIETY | — | S0069625 | 2018-07-11 | Active | |
| OOTISCHENIA INVESTMENTS LTD. | — | BC0866184 | 2009-11-13 | Active | |
| OOTISCHENIA LAND DEVELOPMENT LTD. | — | BC1348580 | 2022-02-17 | Active | |
| OOTISCHENIA RECREATION COMMISSION | — | S0032625 | 1994-10-05 | Inactive | |
| OOTISCHENIA RESCUE SOCIETY | — | S0084837 | 2026-03-11 | Active | |
| OOTLINC ENGINEERING LTD. | — | BC0888091 | 2010-08-13 | Inactive | |
| OOTMAR AUTOMOTIVE LTD. | — | BC0215205 | 1980-08-26 | Active | |
| OOTORI MANAGEMENT INC. | — | BC0967176 | 2013-04-10 | Inactive | |
| OOTS FLOWER BOX | — | FM0870009 | 2022-02-08 | Active | |
| OOTS'N RECONNECTION SERVICES INC. | — | BC1301821 | 2021-04-23 | Active | |
| OOTSA AIR LTD. | — | BC0417977 | 1991-12-31 | Inactive | |
| OOTSA HOLDINGS INC. | — | BC0160238 | 1977-04-12 | Inactive | |
| OOTSA LAKE ADVENTURES LTD. | — | BC1231004 | 2019-11-21 | Active | |
| OOTSA LAKE BIBLE CAMP SOCIETY | — | S0026000 | 1990-03-21 | Active | |
| OOTSA LAKE CATTLE CO. LTD. | — | BC0666548 | 2003-03-25 | Active | |
| OOTSA LAKE COMMUNITY WATER SOCIETY | — | S0044505 | 2002-04-11 | Inactive | |
| OOTSA LAKE ENTERPRISES LTD. | — | BC0216106 | 1980-09-12 | Inactive | |
| OOTSA LAKE FOOD CO-OPERATIVE | — | CP0000975 | — | Inactive | |
| OOTSA LAKE HISTORICAL SOCIETY | — | S0060196 | 2012-08-23 | Inactive | |
| OOTSA LAKE OUTFITTING | — | FM0431351 | 2006-08-16 | Active | |
| OOTSA LAKE OUTFITTING LTD. | — | BC1093385 | 2016-10-18 | Active | |
| OOTSA LAKE SAWMILL LTD. | — | BC0459495 | 1993-12-03 | Active | |
| OOTSA OUTFITTERS | — | FM0147257 | 1993-07-21 | Active | |
| OOTSA RESERVOIR CLEARING LTD. | — | BC0106548 | 1972-02-15 | Inactive | |
| OOTSA RESOURCES LTD. | — | BC0610021 | 2000-06-30 | Inactive | |
| OOTSA ROAD COMMITTEE | — | S0046281 | 2003-06-16 | Inactive | |
| OOTSA VENTURES LTD. | — | BC0774233 | 2006-11-09 | Active | |
| OOTTOO ENTERPRISES LTD. | — | BC0466103 | 1994-02-17 | Inactive | |
| OOWBWAW CONSULTING | — | FM0777654 | 2019-05-20 | Active | |
| OOWL VISION INC. | — | BC0877685 | 2010-04-02 | Inactive | |
| OOXX ENTERPRISE | — | FM0805205 | 2020-05-03 | Active | |
| OOZ DOOL KUT PRODUCTIONS INC. | — | BC1500581 | 2024-09-06 | Active | |
| OOZAWA INTERNATIONAL CO., LTD. | — | BC1170373 | 2018-07-02 | Inactive | |
| OOZERBRUISER | — | FM0888395 | 2022-08-19 | Active | |
| OOZI | — | FM1052457 | 2024-07-31 | Active | |
| OOZOA BIOMEDICAL INC. | — | BC0604028 | 2000-03-24 | Active | |
| OOZOO VENTURES INC. | — | BC0252950 | 1982-06-30 | Inactive | |
| OOZORA FOOD SERVICE | — | FM1020304 | 2023-06-30 | Active | |
| OOZORA FOOD SERVICE LTD. | — | BC1484496 | 2024-06-07 | Active | |
| OP & ASSOCIATES - H2SO4 CONSULTANTS LTD. | — | BC0951893 | 2012-10-03 | Inactive | |
| OP BANNER PRODUCTIONS INC. | — | A0118377 | 2021-06-01 | Inactive | |
| OP BRANDS INC. | — | BC1119054 | 2017-05-16 | Active | |
| OP BUILDERS | — | FM0892561 | 2022-10-19 | Active | |
| OP CAR DETAILING | — | FM1076706 | 2025-05-26 | Active | |
| OP CONSULTING LTD. | — | BC1242411 | 2020-02-27 | Inactive | |
| OP CONTRACTING AND CLEANING | — | FM0853680 | 2021-07-22 | Active | |
| OP CREATIONS | — | FM0859231 | 2021-09-28 | Active | |
| OP DENTAL CORP. | — | BC1510617 | 2024-11-07 | Active | |
| OP ENTERPRISE INC. | — | BC1121622 | 2017-06-05 | Active | |
| OP ENTERPRISES | — | FM0107678 | 1990-05-16 | Active | |
| OP FINISHING SERVICE | — | FM0595661 | 2012-11-16 | Active | |
| OP FITNESS CONSULTANTS LTD. | — | BC0662951 | 2003-01-29 | Inactive | |
| OP HOLDINGS LTD. | — | BC1427048 | 2023-07-11 | Active | |
| OP IMPORTS INC. | — | BC1363559 | 2022-05-18 | Inactive | |
| OP INNOVATION AND DESIGN | — | FM0200158 | 1996-05-29 | Active | |
| OP INVESTMENT LTD. | — | BC0965529 | 2013-03-20 | Inactive | |
| OP INVESTMENTS LTD. | — | BC0322773 | 1987-03-03 | Inactive | |
| OP LARONDE CONSULTING | — | FM0702546 | 2016-11-07 | Active | |
| OP LEARNING TV INC. | — | BC1207576 | 2019-05-05 | Active | |
| OP LIGHTING INC. | — | BC0754908 | 2006-04-14 | Active | |
| OP MARKETING INC. | — | BC0947888 | 2012-08-14 | Inactive | |
| OP MEDIA GROUP LTD. | — | BC0951055 | 2012-09-25 | Active | |
| OP OFFICE PRODUCTS | — | FM0333745 | 2002-10-31 | Active | |
| OP PAINTING | — | FM1084479 | 2025-08-16 | Active | |
| OP PLUMBING HEATING AND DRAINAGE | — | FM0581801 | 2012-04-25 | Active | |
| OP PLUMBING, HEATING & DRAINAGE LTD. | — | BC1040646 | 2015-06-23 | Inactive | |
| OP PRODUCTIONS INC. | — | BC0900435 | 2011-01-14 | Inactive | |
| OP PUBLISHING | — | FM0601152 | 2013-02-19 | Active | |
| OP PUBLISHING LTD. | — | BC0393390 | 1990-09-11 | Inactive | |
| OP SUN INC. | — | A0090476 | 2013-10-16 | Inactive | |
| OP TALENT INC. | — | BC1596310 | 2026-06-19 | Active | |
| OP TRANSPORT LTD. | — | BC1369604 | 2022-06-28 | Inactive | |
| OP VENTURES INC. | — | BC0567690 | 1998-07-07 | Inactive | |
| OP XMAS PRODUCTIONS INC. | — | BC1070204 | 2016-03-30 | Inactive | |
| OP-RA GENERAL CONTRACTING INC. | — | BC0203281 | 1980-01-23 | Inactive | |
| OP-WORKS CONSULTING INC. | — | BC1491933 | 2024-07-12 | Active | |
| OP4 INC. | — | A0051336 | 2000-02-23 | Inactive | |
| OP4.COM INTERACTIVE INC. | — | BC0605710 | 2000-04-19 | Inactive | |
| OP4CAST CORPORATION | — | BC0599150 | 2000-01-10 | Inactive | |
| OP8 INDUSTRIES INC. | — | BC1552020 | 2025-08-09 | Active | |
| OPA & OMA'S KRAFTS | — | FM0397515 | 2005-05-12 | Active | |
| OPA 2-3 SERVICES LTD. | — | BC0850422 | 2009-04-24 | Inactive | |
| OPA COLWOOD FOODS INC. | — | BC1368981 | 2022-06-24 | Active | |
| OPA COURTENAY FOODS INC. | — | BC1353221 | 2022-03-15 | Active | |
| OPA ENTERPRISES | — | FM0421543 | 2006-04-07 | Inactive | |
| OPA ENTERPRISES LTD. | — | BC0866483 | 2009-11-18 | Inactive | |
| OPA GUILDFORD FOODS INC. | — | BC0996060 | 2014-03-10 | Active | |
| OPA HOLDINGS LTD. | — | BC0737826 | 2005-10-17 | Active | |
| OPA JAPANESE RESTAURANT LTD. | — | BC0482858 | 1994-10-24 | Inactive | |
| OPA JOE CONTRACTING | — | FM0775767 | 2019-05-02 | Active | |
| OPA SUSHI LTD. | — | BC0970429 | 2013-05-21 | Active | |
| OPA TAVERNA | — | FM0107312 | 1990-05-03 | Active | |
| OPA VANCOUVER FOODS INC. | — | BC1541464 | 2025-05-27 | Active | |
| OPA! SOUVLAKI FRANCHISE GROUP INC. | — | A0063663 | 2004-11-10 | Active | |
| OPA! SOUVLAKI MANAGEMENT GROUP INC. | — | A0059740 | 2003-07-02 | Active | |
| OPA'S FAMILY RESTAURANT LTD. | — | BC1342735 | 2022-01-17 | Inactive | |
| OPABIN INVESTMENTS LLP | — | LL0002095 | 2021-08-19 | Active | |
| OPABIN SAND AND GRAVEL INC. | — | A0127432 | 2023-04-26 | Active | |
| OPAC CONSTRUCTION LTD. | — | BC0384947 | 1990-04-03 | Active | |
| OPAC DEVELOPMENTS LTD. | — | BC0462631 | 1994-01-14 | Inactive | |
| OPACIC DESIGN | — | FM0607681 | 2013-05-15 | Active | |
| OPACITY DESIGN | — | FM0272830 | 2000-01-10 | Active | |
| OPACITY DESIGN GROUP LTD. | — | BC0635102 | 2001-10-04 | Active | |
| OPACITY PAINTING | — | FM0555790 | 2011-04-29 | Active | |
| OPACK ORGANIC PRODUCERS ASSOCIATION OF CAWSTON - KEREMEOS | — | S0031933 | 1994-05-03 | Inactive | |
| OPAG - SHEET METAL LTD. | — | BC1020610 | 2014-12-01 | Inactive | |
| OPAG MECHANICAL CONTRACTORS | — | FM0451897 | 2007-05-29 | Active | |
| OPAIR TECHNOLOGIES INC. | — | BC1503984 | 2024-09-26 | Active | |
| OPAL & GEM AESTHETIC STUDIO | — | FM0826047 | 2020-12-03 | Active | |
| OPAL & IVY BEAUTY COMPANY INC. | — | BC1431539 | 2023-08-03 | Active | |
| OPAL & OAK SALON | — | FM1099096 | 2026-02-25 | Active | |
| OPAL AND ELM COLLECTIVE | — | FM1033707 | 2023-12-22 | Active | |
| OPAL AND EMBER VINTAGE | — | FM1034591 | 2024-01-06 | Active | |
| OPAL AND OAK HOME FINISHING INC. | — | BC1539844 | 2025-05-15 | Active | |
| OPAL AND ORDER INC. | — | BC1602799 | 2026-08-06 | Active | |
| OPAL AROMATHERAPY | — | FM0208925 | 1996-10-30 | Active | |
| OPAL ASHES | — | FM0735724 | 2017-12-19 | Active | |
| OPAL ATHLETICS | — | FM0318040 | 2002-02-26 | Active | |
| OPAL AURA COMMUNITY | — | FM1075030 | 2025-05-07 | Active | |
| OPAL AUTO DETAILING | — | FM0512556 | 2009-10-04 | Active | |
| OPAL BAY CONTINUUM | — | FM0371988 | 2004-05-10 | Active | |
| OPAL BOUTIQUE | — | FM0870188 | 2022-02-10 | Active | |
| OPAL BUILDING SYSTEMS INC. | — | BC0603846 | 2000-03-23 | Inactive | |