Federal corporations starting with O
20,591 in all; showing 10,251 to 10,300.
| Name | Corporation number | Registered office | Status |
|---|---|---|---|
| Ontario Manufacturers Association | 16198244 | Waterloo, ON | Active |
| Ontario Maple Install Corp. | 14554256 | Casselman, ON | Active |
| Ontario Marble and Granite Inc. | 8156867 | Maple, ON | Active |
| ONTARIO MARBLE COMPANY, LIMITED | 551201 | Toronto, ON | DissolvedBy the corporation |
| ONTARIO MARKET HOUSING LTD. | 2809044 | Orleans, ON | DissolvedFor missed filings |
| Ontario Masters Ski Racing Club Inc. | 11988085 | Collingwood, ON | Active |
| Ontario Math Tutors Ltd. | 13507556 | Brampton, ON | DissolvedFor missed filings |
| ONTARIO MATTRESS RECYCLING INC. | 11425285 | Orillia, ON | AmalgamatedNow part of another corporation |
| Ontario MD Moving Inc. | 13553680 | Ottawa, ON | DissolvedBy the corporation |
| ONTARIO MEDICAL & REHAB CENTRE INC. | 9030794 | Etobicoke, ON | DissolvedFor missed filings |
| Ontario Medical Rehabilitation Clinic inc. | 11253204 | Toronto, ON | Active |
| ONTARIO METAL RECYCLÉ (FNF) INC.ONTARIO METAL RECYCLING (FNF) INC. | 6456774 | Laval, QC | DissolvedBy the corporation |
| Ontario Metalworks Inc. | 13563979 | Oakville, ON | Active |
| ONTARIO METROPOLITAN AREA NETWORKS ASSOCIATION | 3955524 | Cobourg, ON | DissolvedFor missed filings |
| ONTARIO MICROBREWED GAMES INCORPORATED | 8058385 | Toronto, ON | Active |
| Ontario Millworks Inc. | 14886135 | Brampton, ON | DissolvedFor missed filings |
| ONTARIO MMA ASSOCIATION (2025) | 16766382 | Mississauga, ON | Active |
| Ontario Mobile Case Management and Health Solutions Limited | 13653188 | St. Catharines, ON | DissolvedFor missed filings |
| ONTARIO MOBILE ULTRASOUND CLINICS INC. | 2162024 | Etobicoke, ON | AmalgamatedNow part of another corporation |
| Ontario Mock Trial Alliance | 16538886 | Toronto, ON | Active |
| Ontario Mom and Baby Centres Inc. | 16096557 | Toronto, ON | Active |
| ONTARIO MONEY EXCHANGE INC. | 16140114 | Waterloo, ON | Active |
| ONTARIO MOTOR EXPRESS LTD. | 15960355 | Brantford, ON | Dissolution pendingAnnual filings overdue |
| Ontario Motorsport Karting Association | 10425788 | Millgrove, ON | Active |
| Ontario Multicultural Music Association | 11866044 | Oakville, ON | Active |
| ONTARIO MUNICIPAL UTILITY SOFTWARE ASSOCIATION | 2643332 | Kanata, ON | DissolvedFor missed filings |
| Ontario Murphy Beds Ltd. | 13608743 | London, ON | Active |
| Ontario Music Educators' Association | 13727751 | Pickering, ON | Active |
| Ontario Muslim Association | 13877612 | Toronto, ON | Active |
| Ontario Muslim Chamber of Commerce | 11597728 | Mississauga, ON | Active |
| ONTARIO MUSTARD GROWERS LTD. | 971995 | Oxford Station, ON | DissolvedFor missed filings |
| ONTARIO NATIVE WOMEN'S CHARITABLE FOUNDATION | 7978367 | Thunder Bay, ON | Active |
| Ontario Natural Building Coalition | 4434781 | Cambridge, ON | Active |
| ONTARIO NATURAL PHARMACEUTICAL COMPANY, LTD. | 8143064 | Toronto, ON | DissolvedBy the corporation |
| Ontario Net Zero Solutions Inc. | 15229731 | Ashton, ON | Dissolution pendingAnnual filings overdue |
| Ontario Networx Inc. | 10673854 | Burlington, ON | Active |
| ONTARIO NEWS COMPANY, LIMITED | 1200771 | Oakville, ON | DissolvedBy the corporation |
| Ontario Niche Expressive Creations Inc. | 12925656 | Whitby, ON | DissolvedFor missed filings |
| Ontario North Orthopaedics Inc. | 16461999 | North Bay, ON | Active |
| Ontario Northern Experience Media Inc. | 10106941 | Timmins, ON | DissolvedFor missed filings |
| Ontario Oceanographic Association | 10188646 | Ottawa, ON | DissolvedBy the corporation |
| ONTARIO OFFICE OUTFITTERS LIMITED | 2837170 | Barrie, ON | DissolvedFor missed filings |
| Ontario Oil & Gas Alliance Corp. | 14814321 | Ridgetown, ON | Active |
| ONTARIO OIL & GAS TRADING INC. | 8523126 | Toronto, ON | DissolvedFor missed filings |
| Ontario Onbuys E-Commerce Trading Inc. | 10626791 | London, ON | DissolvedFor missed filings |
| Ontario Onchain | 18311650 | Toronto, ON | Active |
| Ontario Online Learning ConsortiumConsortium ontarien pour l'apprentissage en ligne | 9041290 | Toronto, ON | Active |
| Ontario Optics Inc. | 11054244 | Calgary, AB | Active |
| Ontario Organic Farms LTD. | 12622769 | Guelph, ON | Active |
| Ontario Organic Research & Education Foundation | 17879342 | Guelph, ON | Active |