| OPEN DOORS TEAM | — | FM1021079 | 2023-07-11 | Active | |
| OPEN DOORS TRAVEL | — | FM0883295 | 2022-06-13 | Active | |
| OPEN DOORS TRAVEL CONCEPTS LTD. | — | BC1318164 | 2021-08-03 | Active | |
| OPEN DOORS TUTORING SOLUTIONS LTD. | — | BC1576446 | 2026-02-05 | Active | |
| OPEN DRIVES CANADA INC. | — | BC0995311 | 2014-03-01 | Inactive | |
| OPEN EARTH GRANITE AND STONE INSTALLATIONS LTD. | — | BC0890526 | 2010-09-16 | Inactive | |
| OPEN EC TECHNOLOGIES, INC. | — | BC0230782 | 1981-03-30 | Inactive | |
| OPEN EDUCATION SERVICES SOCIETY | — | S0062052 | 2013-12-13 | Inactive | |
| OPEN ELECTRICAL SOLUTIONS | — | FM0481469 | 2008-07-03 | Active | |
| OPEN ELECTRICAL SOLUTIONS INC. | — | BC1197415 | 2019-02-12 | Active | |
| OPEN ENDEAVOR LTD. | — | BC1243846 | 2020-03-10 | Inactive | |
| OPEN ENERGY INC. | — | BC0806539 | 2007-10-24 | Inactive | |
| OPEN ENTERPRISE SOLUTIONS | — | FM0386784 | 2004-12-21 | Active | |
| OPEN ENTERTAINMENT CANADA INC. | — | BC1035354 | 2015-05-01 | Inactive | |
| OPEN ENTERTAINMENT INC. | — | A0102567 | 2017-05-19 | Inactive | |
| OPEN ENTERTAINMENT INC. | — | BC0732831 | 2005-08-18 | Inactive | |
| OPEN ERA INDUSTRIES INC. | — | BC1385823 | 2022-11-07 | Active | |
| OPEN ERA INVESTMENTS LIMITED PARTNERSHIP | — | LP0894431 | 2024-08-01 | Active | |
| OPEN EXPRESS.COM CORPORATION | — | BC0580897 | 1999-03-02 | Inactive | |
| OPEN EYE | — | FM1061699 | 2024-11-30 | Active | |
| OPEN EYE DIGITAL TRAINING INC. | — | A0054722 | 2001-06-07 | Inactive | |
| OPEN EYE IMAGE | — | FM0812286 | 2020-07-24 | Active | |
| OPEN EYE RESEARCH & CONSULTING INC. | — | A0050721 | 1999-11-25 | Inactive | |
| OPEN FARM | — | FM0738869 | 2018-01-30 | Active | |
| OPEN FIELD DEVELOPMENTS LTD. | — | BC1477581 | 2024-04-24 | Active | |
| OPEN FIELD FOODS INC. | — | BC1604885 | 2026-08-21 | Active | |
| OPEN FIELD MANAGEMENT | — | FM0328925 | 2002-08-14 | Active | |
| OPEN FIELDS DISTRIBUTION | — | FM0773976 | 2019-04-10 | Active | |
| OPEN FINANCE NETWORK OF CANADA | — | XS0077484 | 2022-12-15 | Inactive | |
| OPEN FIRE DESIGN | — | FM0680733 | 2016-02-11 | Active | |
| OPEN FIRE HQ | — | FM0716839 | 2017-04-27 | Active | |
| OPEN FLOW | — | FM0590638 | 2012-08-31 | Active | |
| OPEN FOOD SERVICE LTD. | — | BC0890484 | 2010-09-15 | Inactive | |
| OPEN FOR ART SOCIETY | — | S0080220 | 2024-04-17 | Inactive | |
| OPEN FOR BUSINESS | — | FM0672465 | 2015-10-16 | Active | |
| OPEN FOR CHANGE ENTERPRISES INC. | — | BC0995835 | 2014-03-07 | Inactive | |
| OPEN FORMAT ARTS & CULTURE INC. | — | BC1392978 | 2023-01-01 | Active | |
| OPEN FORMAT PHOTOGRAPHY | — | FM0777945 | 2019-05-23 | Active | |
| OPEN FORUM MEDIA ARTS SOCIETY | — | S0048440 | 2004-12-13 | Inactive | |
| OPEN FRONTIER COLLEGE INC. | — | BC0920538 | 2011-09-17 | Inactive | |
| OPEN GAMING SOLUTIONS INC. | — | BC0960914 | 2013-01-25 | Active | |
| OPEN GATE ACUPUNCTURE AND HERBAL CLINIC | — | FM0316505 | 2002-02-04 | Active | |
| OPEN GATE ARCHITECTURAL SCALE MODEL | — | FM0590646 | 2012-09-01 | Active | |
| OPEN GATE ARCHITECTURAL SCALE MODEL | — | FM0542240 | 2010-11-04 | Inactive | |
| OPEN GATE ARCHITECTURAL SCALE MODEL LTD. | — | BC1091429 | 2016-10-01 | Active | |
| OPEN GATE HOLDINGS LTD. | — | BC1398909 | 2023-02-01 | Active | |
| OPEN GATE HORSEMANSHIP | — | FM0339793 | 2003-02-07 | Active | |
| OPEN GATE REAL ESTATE LTD. | — | BC1398910 | 2023-02-01 | Active | |
| OPEN GATE SOFTWARE | — | FM0132055 | 1992-07-15 | Active | |
| OPEN GATE SYSTEMS | — | FM0090086 | 1988-08-15 | Active | |
| OPEN GATE TRADING INC. | — | BC1548745 | 2025-07-17 | Active | |
| OPEN GEEK HOUSE TECHNOLOGY LTD. | — | BC1087500 | 2016-08-26 | Inactive | |
| OPEN GLOBAL CONSULTING (CANADA) LTD. | — | BC0678035 | 2003-09-26 | Active | |
| OPEN GREEN BUILDING SOCIETY | — | S0055600 | 2009-08-28 | Active | |
| OPEN GUILDS TECHNOLOGIES INC. | — | BC1147618 | 2018-01-02 | Inactive | |
| OPEN HAND COMMUNITY LIVING AND HEALTH CARE SERVICES INC. | — | BC1430560 | 2023-07-28 | Active | |
| OPEN HAND TEAMBUILDING SOLUTIONS | — | FM0474330 | 2008-04-02 | Active | |
| OPEN HANDS CONSULTING | — | FM0658404 | 2015-04-17 | Active | |
| OPEN HANDS FOR SENIORS | — | FM0630010 | 2014-03-25 | Active | |
| OPEN HEALTH PRODUCTIONS INC. | — | BC0880290 | 2010-05-05 | Inactive | |
| OPEN HEALTH SOFTWARE SOLUTIONS INC. | — | C1339076 | 2021-12-21 | Inactive | |
| OPEN HEART ACUPUNCTURE | — | FM0699955 | 2016-10-04 | Active | |
| OPEN HEART COUNSELLING | — | FM0739627 | 2018-02-07 | Active | |
| OPEN HEART COUNSELLING LIMITED | — | BC1271531 | 2020-10-26 | Active | |
| OPEN HEART DANCE AND WELLNESS | — | FM0625896 | 2014-01-31 | Active | |
| OPEN HEART MULTICULTURAL COUNSELLING CORP. | — | BC0898384 | 2010-12-20 | Inactive | |
| OPEN HEART RANGE & GAME LODGE LTD. | — | BC0042913 | — | Inactive | |
| OPEN HEART YOGA | — | FM0421038 | 2006-04-03 | Active | |
| OPEN HEART'S FOR FOOD AND SHELTER SOCIETY | — | S0032238 | 1994-07-14 | Inactive | |
| OPEN HEARTH FIREPLACE SHOP | — | FM0019319 | 1975-11-05 | Active | |
| OPEN HEARTH STUDIO | — | FM0612560 | 2013-07-19 | Active | |
| OPEN HEARTS ADULT DAYCARE & SPA INC. | — | BC0861713 | 2009-09-19 | Inactive | |
| OPEN HEARTS COMPANION SERVICE | — | FM0664405 | 2015-06-30 | Active | |
| OPEN HEARTS COMPANION SERVICE INC. | — | BC1136913 | 2017-10-09 | Active | |
| OPEN HEAVEN MINISTRIES | — | S0042693 | 2001-02-13 | Inactive | |
| OPEN HEAVENS SOCIETY | — | S0065387 | 2016-04-26 | Inactive | |
| OPEN HOLDINGS LIMITED | — | BC0087801 | — | Inactive | |
| OPEN HOLDINGS LTD. | — | BC1314353 | 2021-07-07 | Active | |
| OPEN HOLDINGS LTD. | — | BC0633949 | 2001-09-17 | Inactive | |
| OPEN HOME FOSTER CARE & CONSULTING SERVICES LTD. | — | BC0680017 | 2003-10-28 | Inactive | |
| OPEN HORIZON DEVELOPMENTS INC. | — | BC1291840 | 2021-03-02 | Active | |
| OPEN HORIZON ENTERPRISES | — | FM0396713 | 2005-05-04 | Active | |
| OPEN HORIZONS CONSULTING | — | FM0673713 | 2015-11-03 | Active | |
| OPEN HORIZONS LEARNING | — | FM0629743 | 2014-03-20 | Active | |
| OPEN HOUSE COMBAT LTD. | — | BC1469205 | 2024-03-05 | Active | |
| OPEN HOUSE CREATIONS | — | FM0435743 | 2006-10-18 | Active | |
| OPEN HOUSE CREATIONS INC. | — | BC0781974 | 2007-02-06 | Inactive | |
| OPEN HOUSE DECOR | — | FM0642175 | 2014-09-08 | Active | |
| OPEN HOUSE HOME STAGING & DECORATING | — | FM0457541 | 2007-08-13 | Active | |
| OPEN HOUSE LENDING INC. | — | BC1108748 | 2017-02-24 | Active | |
| OPEN HOUSE PREP | — | FM0659266 | 2015-04-28 | Active | |
| OPEN HOUSE PRODUCTIONS LTD. | — | BC0171964 | 1978-03-03 | Inactive | |
| OPEN HOUSE PUBLISHING SERVICES | — | FM0135033 | 1992-09-25 | Active | |
| OPEN HOUSE SERVICE LTD. | — | BC0240628 | 1981-08-10 | Inactive | |
| OPEN HOUSE TOUR INC. | — | BC1116043 | 2017-04-23 | Inactive | |
| OPEN HOUSING CANADA | — | A0140721 | 2026-02-18 | Active | |
| OPEN ICE FOUNDATION | — | S0043669 | 2001-09-17 | Inactive | |
| OPEN ICE MANAGEMENT INC. | — | BC0680756 | 2003-11-07 | Inactive | |
| OPEN ICE PRODUCTIONS ULC | — | BC1205094 | 2019-04-12 | Active | |
| OPEN IMAGE INC. | — | BC0625930 | 2001-04-11 | Inactive | |
| OPEN IN WONDERLAND ADVENTURES INC. | — | BC0678416 | 2003-10-02 | Inactive | |
| OPEN INNOVATIONS | — | FM0219933 | 1997-05-14 | Active | |
| OPEN INTERIORS | — | FM0598534 | 2013-01-09 | Active | |
| OPEN INTERIORS INC. | — | BC1042353 | 2015-07-09 | Active | |
| OPEN INVESTMENTS LTD. | — | BC0212618 | 1980-07-08 | Inactive | |
| OPEN INVITATION | — | FM0301199 | 2001-05-09 | Active | |
| OPEN INVITATION-CUSTOM INVITATIONS-BY DESIGN | — | FM0443181 | 2007-02-06 | Active | |
| OPEN JOURNEYS EDUCATION CORP. | — | A0135766 | 2025-02-15 | Active | |
| OPEN KNOWLEDGE SOLUTION CORPORATION | — | BC0744131 | 2005-12-22 | Inactive | |
| OPEN KOREAN CHURCH | — | S0050276 | 2006-02-15 | Inactive | |
| OPEN LANE CONSTRUCTION LTD. | — | BC1509961 | 2024-11-04 | Active | |
| OPEN LANE SERVICES | — | FM1056238 | 2024-09-18 | Active | |
| OPEN LEADERSHIP & TALENT DEVELOPMENT | — | FM0607139 | 2013-05-08 | Active | |
| OPEN LEAF PHOTOGRAPHY | — | FM0824737 | 2020-11-24 | Active | |
| OPEN LEARNING FOUNDATION | — | S0025280 | 1989-08-17 | Inactive | |
| OPEN LEGEND ARTS SOCIETY | — | S0032141 | 1994-06-22 | Inactive | |
| OPEN LENDING EXCHANGE INC. | — | A0131783 | 2024-04-03 | Active | |
| OPEN LENS PHOTOGRAPHY | — | FM0618629 | 2013-10-16 | Active | |
| OPEN LENS PICTURES INC. | — | BC0587188 | 1999-06-14 | Inactive | |
| OPEN LIBRARY OF CANADA | — | XS0060952 | 2013-03-08 | Active | |
| OPEN LIFE COUNSELLING | — | FM0610014 | 2013-06-19 | Active | |
| OPEN LINE COMMUNICATIONS INCORPORATED | — | BC0644115 | 2002-03-15 | Inactive | |
| OPEN LINE COMPUTER SYSTEMS | — | FM0315600 | 2002-01-21 | Active | |
| OPEN LION CONSTRUCTION LTD. | — | BC1313246 | 2021-06-29 | Inactive | |
| OPEN LOCK SERVICES | — | FM0846336 | 2021-05-20 | Active | |
| OPEN LODGES HOLDINGS LTD. | — | BC0948286 | 2012-08-20 | Inactive | |
| OPEN MARKET COMPANY (O.M.C.) | — | FM0188848 | 1995-10-30 | Active | |
| OPEN MARKET INVESTMENTS LTD. | — | BC0820461 | 2008-03-27 | Inactive | |
| OPEN MARKETING | — | FM0215195 | 1997-02-28 | Active | |
| OPEN MAT TRAINING CENTERS INC. | — | BC1063131 | 2016-01-29 | Inactive | |
| OPEN MEDICINE FOUNDATION CANADA | — | XS0071630 | 2019-07-08 | Active | |
| OPEN MIND ACADEMY | — | FM0390159 | 2005-02-11 | Active | |
| OPEN MIND CLINICAL COUNSELLING INC. | — | BC1248320 | 2020-04-25 | Active | |
| OPEN MIND COUNSELLING | — | FM0679194 | 2016-01-22 | Active | |
| OPEN MIND DEVELOPMENTS CORPORATION | — | C1198486 | 2019-02-22 | Inactive | |
| OPEN MIND DEVELOPMENTS CORPORATION | — | BCC1198486 | 2019-02-22 | Active | |
| OPEN MIND FUND FOUNDATION | — | S0055864 | 2009-11-03 | Inactive | |
| OPEN MIND PSYCHOLOGY | — | FM0881051 | 2022-05-20 | Active | |
| OPEN MIND PSYCHOLOGY | — | FM1035234 | 2024-01-12 | Active | |
| OPEN MIND SCHOOL INC. | — | BC0879644 | 2010-04-28 | Inactive | |
| OPEN MIND SOLUTIONS | — | FM0607943 | 2013-05-20 | Active | |
| OPEN MINDS CONSULTING LTD. | — | C0619972 | 2000-12-28 | Inactive | |
| OPEN MINDS EARLY LEARNING LTD. | — | BC1164447 | 2018-05-16 | Active | |
| OPEN MINDS FOUNDATIONS | — | S0082387 | 2025-04-01 | Active | |
| OPEN MINDS MARKETING | — | FM0504917 | 2009-06-12 | Active | |
| OPEN MINDS OPEN WINDOWS SOCIETY | — | S0048718 | 2005-02-18 | Inactive | |
| OPEN MINDS PERFORMANCE | — | FM0756444 | 2018-09-12 | Active | |
| OPEN MOMENTUM TECHNOLOGIES LTD. | — | BC1396698 | 2023-01-18 | Active | |
| OPEN MOORINGS LTD. | — | BC1577503 | 2026-02-12 | Active | |
| OPEN MOTION | — | FM0406272 | 2005-09-09 | Active | |
| OPEN MOUNTAINS PROJECT SOCIETY | — | S0065537 | 2016-05-25 | Active | |
| OPEN MRI CLINIC INC. | — | BC0591372 | 1999-08-26 | Inactive | |
| OPEN MRI NETWORK LIMITED PARTNERSHIP | — | LP0297822 | 2001-03-16 | Active | |
| OPEN MRI NETWORK MANAGEMENT CORP. | — | BC0624091 | 2001-03-15 | Inactive | |
| OPEN MUSEUM SOCIETY | — | S0029545 | 1992-09-22 | Inactive | |
| OPEN NETWORK ENVIRONMENTS CORP. | — | BC0598765 | 2000-01-05 | Inactive | |
| OPEN NIGHTS ENTERPRISES | — | FM0129756 | 1992-05-04 | Active | |
| OPEN NUTRITION | — | FM0649330 | 2014-12-23 | Active | |
| OPEN OBJECT SOLUTIONS INCORPORATED | — | BC0504932 | 1995-09-26 | Inactive | |
| OPEN OCEAN COUNSELLING | — | FM1010016 | 2023-02-21 | Active | |
| OPEN OCEAN HOLDINGS INC. | — | BC1042011 | 2015-07-07 | Active | |
| OPEN OCEAN INFLATABLES | — | FM0194001 | 1996-02-12 | Active | |
| OPEN OCEAN INFLATABLES LTD. | — | BC0571412 | 1998-09-09 | Inactive | |
| OPEN OCEAN OUTRIGGERS | — | FM0320255 | 2002-04-09 | Active | |
| OPEN OCEAN ROBOTICS INC. | — | A0110574 | 2019-07-24 | Active | |
| OPEN OCEANS TRADING CORP. | — | BC0873427 | 2010-02-09 | Inactive | |
| OPEN OPTION INVESTMENTS INC. | — | BC0629085 | 2001-06-08 | Inactive | |
| OPEN ORTHOPEDIC EDUCATIONAL SERVICES INC. | — | BC0922333 | 2011-10-07 | Inactive | |
| OPEN OSP SERVICE COOPERATIVE | — | CP0002353 | 2020-01-16 | Active | |
| OPEN OUTCRY TRADING FLOOR LTD. | — | BC1214647 | 2019-06-28 | Inactive | |
| OPEN OUTLET ENTERPRISES INC. | — | BC1360655 | 2022-05-02 | Active | |
| OPEN PACIFIC ENTERPRISES LTD. | — | BC0348620 | 1988-07-15 | Inactive | |
| OPEN PACIFIC GRAPHICS | — | FM0020076 | 1974-01-31 | Active | |
| OPEN PACIFIC YACHT SERVICES | — | FM0041099 | 1982-02-01 | Active | |
| OPEN PALM STUDIO | — | FM0878705 | 2022-05-02 | Active | |
| OPEN PARACHUTE CANADA FOUNDATION | — | S0085217 | 2026-05-01 | Active | |
| OPEN PARACHUTE ULC | — | A0128651 | 2023-07-27 | Active | |
| OPEN PATH CONSULTING | — | FM0348217 | 2003-05-26 | Active | |
| OPEN PATH COUNSELLING | — | FM1045070 | 2024-04-30 | Active | |
| OPEN PATH EDUCATION LTD. | — | BC1594020 | 2026-06-05 | Active | |
| OPEN PATH EMPOWERMENT FOUNDATION | — | XS0079981 | 2024-03-08 | Active | |
| OPEN PATIO CHICKEN & SEAFOOD RESTAURANT | — | FM0290326 | 2000-10-30 | Active | |
| OPEN PINE TECHNOLOGIES | — | FM0537898 | 2010-09-06 | Active | |
| OPEN PINE TECHNOLOGIES | — | FM0324967 | 2002-06-10 | Active | |
| OPEN PORTAL INTERNATIONAL SOCIETY | — | S0079142 | 2023-11-06 | Active | |
| OPEN POSSIBILITIES COACHING & CONSULTING | — | FM1072906 | 2025-04-10 | Active | |
| OPEN PRAIRIE CONSULTING LTD. | — | A0072289 | 2007-09-12 | Inactive | |
| OPEN PRESS PUBLISHING LTD. | — | BC0477043 | 1994-07-19 | Active | |
| OPEN PRIVACY RESEARCH SOCIETY | — | S0068874 | 2018-02-11 | Active | |
| OPEN PROJECTS CORP. | — | BC1271732 | 2020-10-27 | Active | |
| OPEN RANGE CUSTOM'S | — | FM0410325 | 2005-11-08 | Active | |
| OPEN RANGE MARKET | — | FM0378004 | 2004-08-06 | Active | |
| OPEN RANGE POULTRY FARMS LTD. | — | BC1573574 | 2026-01-20 | Active | |
| OPEN RANGE PUBLISHING | — | FM0114943 | 1991-01-18 | Active | |
| OPEN RANGE STRATEGY INC. | — | BC1527557 | 2025-02-19 | Inactive | |
| OPEN RANGE VAC SERVICES | — | FM0380616 | 2004-09-16 | Active | |
| OPEN RANGE VAC SERVICES LTD. | — | BC0734863 | 2005-09-13 | Inactive | |
| OPEN REGENERATIVE TECHNOLOGIES INC. | — | BC1110465 | 2017-03-09 | Active | |
| OPEN RESOURCE ASSOCIATION | — | S0054807 | 2009-03-10 | Inactive | |
| OPEN RISE STAIRS & GLASS INC. | — | BC1501317 | 2024-09-11 | Active | |