| Cairns Creameries. Ltd | 1931 |
| Calders (Canada) Limited | 1931-1940 |
| Caledonia Dairy, Ltd. | 1930 |
| Caledonia Springs Corp., Ltd. | 1929, 1931-1928 |
| Calgary & Edmonton Railway | 1933-1941 |
| Calgary and Edmonton Corporation, Ltd. | 1930-1941 |
| Calgary and Edmonton Land Company | 1931-1941 |
| Calgary Brewing and Malting Company | 1927-1935 |
| Calgary Development and Producers | 1932-1933 |
| Calgary-Fabyan Royalties, Ltd. | 1930-1931 |
| Calgary Gas Company, Limited | 1918-1925, 1931-1941 |
| Calgary Power Company, Limited | 1913-1941 |
| Calgary Water Power Company, Ltd. | 1930-1941 |
| Calmont Oils, Ltd. | 1928-1939 |
| Camaguey Company, Limited, The | 1909-1917 |
| Camaguey Electric Company | 1923 |
| Cameron & Heap, Ltd. | 1931-1941 |
| Cameron Petroleums, Ltd. | 1930 |
| Campbell Auto Finance Co. Ltd | 1941 |
| Campbell Flour Mills Company, Ltd. | 1926-1941 |
| Canada and Dominion Sugar Company Ltd | 1940-1941 |
| Canada and General Motors Corporation | 1940-1941 |
| Canada Atlantic Railway (Bonds) | 1934-1939 |
| Canada Atlantic Railway Company Ltd. | 1902-1903 |
| Canada Biscuit Company | 1926-1929 |
| Canada Bolt and Nut Company, Ltd. | 1915-1941 |
| Canada Bread Company, Limited, 1933 Report | 1934 |
| Canada Bread Company, Limited, 1934 Report | 1934 |
| Canada Bread Company, Limited | 1912-1933, 1935-1941 |
| Canada Brick Company Limited | 1913-1917 |
| Canada Bud Breweries, Ltd. | 1929-1941 |
| Canada Carriage & Body Co., Ltd. | 1925-1930 |
| Canada Carriage Company | 1915-1920 |
| Canada Carriage Works | 1921-1924 |
| Canada Cartons, Ltd. | 1929, 1931-1926 |
| Canada Cement Company, Ltd. | 1910-1941 |
| Canada Chemical Company | 1926-1927 |
| Canada Creosoting Company, Ltd. | 1930-1941 |
| Canada Crushed Stone Ltd. | 1941 |
| Canada Cycle and Motor Company | 1901-1912, 1918-1941 |
| Canada Dairies, Ltd. (Toronto) | 1932-1936 |
| Canada Dry Ginger Ale, Inc. | 1929-1941 |
| Canada Dry Ginger Ale, Inc. (Virginia) | 1929-1930 |
| Canada Dry Ginger Ale, Ltd. | 1930-1941 |
| Canada Dry International Inc. | 1937, 1939-1941 |
| Canada Flour Mills Company, Ltd. | 1922 |
| Canada Forge Company, Ltd. | 1913-1941 |
| Canada Foundries and Forgings, Limited | 1912-1941 |
| Canada Furniture Manufacturers, Limited | 1901-1905, 1914-1922 |
| Canada Gypsum & Alabastine Ltd. | 1928-1941 |
| Canada Housing Corp | 1931 |
| Canada Interlake Line, Ltd. | 1913-1914 |
| Canada Iron Corporation, Limited, The | 1909, 1912-1913 |
| Canada Iron Foundries, Limited | 1918-1941 |
| Canada Landed and National Investment Company | 1901-1941 |
| Canada Life Assurance Company | 1901-1941 |
| Canada Light and Power Company | 1929-1930 |
| Canada Kirkland Mines, Limited | 1934 |
| Canada Machinery Corp., Ltd. | 1911-1931, 1938-1940 |
| Canada Malting Co., Ltd. | 1928-1941 |
| Canada National Fire Insurance Company | 1913-1924 |
| Canada North-West Land Company, Ltd. | 1901-1941 |
| Canada Northern Power Corporation, Ltd. | 1925-1941 |
| Canada Packers Inc. (New York) | 1941 |
| Canada Packers, Ltd. | 1928-1941 |
| Canada Paint Company, Ltd. | 1915-1941 |
| Canada Paper "Wholesale" Ltd. | 1931-1941 |
| Canada Paper Company | 1901-1941 |
| Canada Paving and Supply Corp., Ltd. | 1929-1932 |
| Canada Permanent Loan and Savings Company | 1901 |
| Canada Permanent Mortgage Corporation | 1904-1941 |
| Canada Permanent Trust Company | 1922-1941 |
| Canada Permanent and Western Canada Mortgage Corporation | 1901-1903 |
| Canada Power & Paper Corporation | 1928-1941 |
| Canada Roof Products, Ltd. | 1931-1941 |
| Canada Screw Company, Ltd. | 1915-1941 |
| Canada Steamship Lines, Limited | 1914-1941 |
| Canada Tea Company | 1918-1919 |
| Canada Transcontinental Airways, Ltd. | 1931 |
| Canada Trust Company | 1909-1910, 1915-1941 |
| Canada Vinegars Ltd. | 1928-1941 |
| Canada West Securities Corporation | 1913-1914 |
| Canada Wire and Cable Company. Ltd. | 1929-1941 |
| Canadian Acme Screw and Gear, Ltd. | 1926-1941 |
| Canadian Airways, Ltd. | 1931-1941 |
| Canadian Allis-Chalmers, Limited | 1914-1927, 1931-1941 |
| Canadian Ammonia Company, Ltd. | 1930-1941 |
| Canadian Associated Aircraft Ltd | 1941 |
| Canadian Atlantic Railway Company | 1902-1904 |
| Canadian Bakeries, Limited | 1926-1941 |
| Canadian Bank of Commerce | 1902-1941 |
| Canadian (B.C) Telephone & Supplies Ltd | 1939-1941 |
| Canadian Billings and Spencer, Limited | 1913-1941 |
| Canadian Birkbeck Investment and Savings Company | 1906-1912 |
| Canadian Breweries Ltd. | 1937-1941 |
| Canadian Brewing Corporation Ltd. | 1927-1936, 1938 |
| Canadian Bridge Co. Ltd. | 1938-1941 |
| Canadian Bronze Co., Ltd. | 1928-1941 |
| Canadian Bronze Ltd. | 1928-1932 |
| Canadian Canners Western, Ltd. | 1932-1941 |
| Canadian Canners, Limited | 1924-1941 |
| Canadian Car and Foundry Co. Agency of | 1921-1935, 1940-1941 |
| Canadian Car and Foundry Company Ltd. | 1910-1941 |
| Canadian Car Munitions Ltd | 1941 |
| Canadian Celanese, Ltd. | 1929-1941 |
| Canadian Cellulose Co., Ltd. | 1927-1929, 1931-1936 |
| Canadian Cereal and Milling Co. | 1910-1912 |
| Canadian Coalfields, Limited | 1922-1941 |
| Canadian Colored Cotton Mills Company | 1901-1912 |
| Canadian Connecticut Cotton Mills | 1924-1934 |
| Canadian Consolidated Felt Company, Ltd. | 1912-1939 |
| Canadian Consolidated Rubber Company, Ltd. | 1907-1939 |
| Canadian Converters' Company, Ltd., The | 1908-1941 |
| Canadian Copper Refiners, Ltd. | 1930-1941 |
| Canadian Cottons, Limited | 1910-1941 |
| Canadian Crocker Wheeler Company, Limited | 1917-1941 |
| Canadian Cutler Hammer Ltd. | 1938-1939, 1941 |
| Canadian Die Casters | 1937-1941 |
| Canadian Distilleries, Ltd. | 1929 |
| Canadian Dredge & Dock Co., Ltd. | 1928-1941 |
| Canadian Dredging Company, Ltd. | 1930-1941 |
| Canadian Dye &Tapping Co | 1936 |
| Canadian Edison Appliance Co., Ltd | 1931-1934 |
| Canadian Exploration Co. | 1933-1934 |
| Canadian Explosives, Ltd. | 1928-1941 |
| Canadian Fabrikoid Ltd. | 1928-1929, 1931-1941 |
| Canadian Fairbanks Morse Company, Limited, The | 1914-1941 |
| Canadian Farm Improvement Co., Ltd. | 1928-1933 |
| Canadian Fertilizer Co. Ltd. | 1939-1941 |
| Canadian Fire Insurance Company | 1910-1926 |
| Canadian Foreign Investment. Corp. Ltd., The | 1929-1941 |
| Canadian General Electric Company, Ltd. | 1901-1941 |
| Canadian General Inv. Trust, Ltd. | 1929-1941 |
| Canadian General Investments, Ltd. | 1932-1941 |
| Canadian General Transit Co., Ltd. | 1933-1941 |
| Canadian General Rubber Co., Ltd | 1932-1935 |
| Canadian Giant Ltd. | 1928, 1931-1941 |
| Canadian Glass Manufacturing Company | 1921-1931 |
| Canadian Government Railways | 1922-1929 |
| Canadian Handkerchiefs Limited | 1925-1928, 1930-1940 |
| Canadian Hardwood Company, Limited | 1927-1941 |
| Canadian Hydro Electric Corporation , Ltd. | 1928-1941 |
| Canadian Improvement Company | 1904 |
| Canadian Industrial Alcohol Company, Ltd | 1924-1941 |
| Canadian Industrial Alcohol of Manitoba | 1930-1936 |
| Canadian Industries, Ltd | 1928-1941 |
| Canadian Interlake Line, Limited | 1913-1914, 1920-1921 |
| Canadian International Investment Trust, Ltd | 1930-1941 |
| Canadian International Paper Company | 1926-1941 |
| Canadian International Paper Ltd | 1937-1941 |
| Canadian Investors Corp., Ltd | 1929-1941 |
| Canadian John Wood Mfg. Company, Ltd | 1929-1941 |
| Canadian John Wood Vancouver Ltd | 1941 |
| Canadian Kirkland Mines, Limited | 1935 |
| Canadian Light and Power Company | 1911-1941 |
| Canadian Locomotive Company, Ltd | 1912-1941 |
| Canadian Lorrain Silver Mines | 1926-1927 |
| Canadian Malartic Gold Mines, Ltd | 1934-1939 |
| Canadian Marconi Company | 1926-1941 |
| Canadian Mead Morrison Co, Ltd | 1933-1941 |
| Canadian Milk Products, Ltd. | 1931-1932 |
| Canadian Mining and Finance, Ltd | 1930-1941 |
| Canadian Mortgage Investment Company | 1912-1927 |
| Canadian National Railways | 1922-1941 |
| Canadian Niagara Power Company | 1905-1929 |
| Canadian Northern Electric Lines | 1924 |
| Canadian Northern Prairie Lands Company | 1908-1926 |
| Canadian Northern Railway Company | 1905-1920 |
| Canadian Northern Railway System | 1921-1929 |
| Canadian Oil Companies, Ltd | 1926-1941 |
| Canadian Pacific Railway Company | 1901-1941 |
| Canadian Packing Co., Ltd | 1928-1941 |
| Canadian Paperboard Company, Ltd. | 1922-1929 |
| Canadian Pipe and Lining Co., Ltd | 1932-1934 |
| Canadian Power and Paper Investments, Ltd | 1930-1941 |
| Canadian Public Service Corp., Ltd | 1933-1941 |
| Canadian Pulp and Paper Research Corp. | 1933 |
| Canadian Radio Artists Bureau, Ltd | 1936, 1941 |
| Canadian Radio Corporation, Ltd | 1931-1935, 1937-1941 |
| Canadian Rail and Harbour Terminals, Ltd. Toronto | 1929-1931 |
| Canadian Realty Corporation, Ltd. | 1925 |
| Canadian Rockbestos Products Ltd. | 1933-1934 |
| Canadian Rogers Company, Limited | 1913-1914 |
| Canadian Rubber Co., Ltd. of Montreal, The | 1925-1930, 1936-1938 |
| Canadian Rubber Company | 1905-1908, 1931-1935 |
| Canadian Safety Fuse Company, Ltd | 1928, 1930-1941 |
| Canadian Sales Book Company | 1930-1931 |
| Canadian Salt Company, Ltd | 1903-1941 |
| Canadian Salt Equipment Co., Ltd. | 1928, 1930-1931 |
| Canadian Savings and Loan Company | 1901-1906 |
| Canadian Shredded Wheat Company | 1915-1928 |
| Canadian Sparkling Products Ltd | 1931-1934 |
| Canadian Sprucolite, Ltd. | 1929 |
| Canadian Steel & Wire Co., Ltd | 1938 |
| Canadian Steel Corp., Ltd | 1938-1941 |
| Canadian Steel Foundries, Limited | 1911-1930, 1932-1941 |
| Canadian Steel Lands Co., Ltd. | 1938 |
| Canadian Sunbeam Lamp co | 1932-1934 |
| Canadian Telephone & Supplies, Ltd | 1932-1934, 1936-1938 |
| Canadian Terminal Steamships, Ltd | 1930-1931 |
| Canadian Terminal System, Ltd. | 1930-1931 |
| Canadian Termini 1 System, Ltd. | 1929 |
| Canadian Theatre Company | 1927 |
| Canadian Tillsoil Farm Motors, Ltd. | 1922-1929, 1931-1934 |
| Canadian Transcontinental Airways, Ltd | 1933-1935 |
| Canadian Utilities, Ltd | 1926-1941 |
| Canadian Vickers, Ltd | 1929-1941 |
| Canadian Wallpaper Manufacturers, Ltd | 1936-1941 |
| Canadian Western Natural Gas, L., H. and P. Co., Ltd | 1918-1941 |
| Canadian Western Telephone Co., Ltd | 1933-1940 |
| Canadian Westinghouse Company, Ltd | 1905-1941 |
| Canadian Wineries, Ltd | 1929-1941 |
| Canadian Wirebound Boxes, Ltd | 1929-1941 |
| Canadian Wm. A. Rogers Company, Limited | 1915-1929 |
| Canadian Woollens, Limited | 1921-1937, 1940-41 |
| Canam Metals, Limited | 1934-1935 |
| Candyteria Shops, Limited, The | 1934-1941 |
| Cannelton Coal and Coke Co | 1919-1935, 1938-1941 |
| Canners Machinery, Ltd | 1928-1941 |
| Canners Seeds, Ltd | 1928-1941 |
| Cape Breton Electric Company | 1909, 1915-1931 |
| Capilano Brewing Co. Ltd. | 1939-1941 |
| Capital Rouyn Gold Mines Ltd | 1934 |
| Capital Trust Corporation, Ltd | 1914-1926, 1929-1941 |
| Cariboo Gold Quartz Mining Company, Ltd | 1934-1939 |
| Cariboo Hydraulic Mining Company | 1901-1905 |
| Cariboo McKinney Mining and Milling Company | 1901-1905 |
| Carling Breweries, Ltd | 1928-1938, 1941 |
| Carling-Kuntz Breweries Ltd | 1937-1940 |
| Carnation Company | 1936-1941 |
| Carriage Factories, Limited | 1910-1930 |
| Carter-Crume Company, Ltd | 1901-1938 |
| Cartier-Malartic Gold Mines, Ltd | 1935-1939 |
| Cartire Warehouse Co. Ltd. | 1941 |
| Carton Specialties, Limited | 1938-1941 |
| Cascade Narrow Fabric Co., Ltd. | 1928-1931 |
| Cascade Water, Power & Light Co., Ltd | 1921-1941 |
| Cascapedia Manufacturing & Trading Co., Ltd | 1927, 1930-1941 |
| Case Plow Works Incorporated, J. I. | 1928-1941 |
| Cassel Cyanide Co. of Canada, Ltd,, The | 1932-1941 |
| Cast Stone Block and Machine Company, Ltd. | 1930-1931 |
| Castle Mining Company, Limited | 1927 |
| Castle-Trethewey Mines, Limited | 1922-1927, 1934-1939 |
| Catello, C.H. Company, Ltd. | 1930 |
| Catelli Company, Ltd., C. H. | 1931 |
| Catelli Food Products Ltd | 1936-1941 |
| Catelli Macaroni Products Corp., Ltd | 1929-1941 |
| Caulfield's Dairy Ltd | 1929, 1931-1941 |
| C.C.M. Incorporated | 1940-1941 |
| Cedar Holding Co | 1932-1926 |
| Cedars Rapid Manufacturing and Power Company | 1916-1941 |
| Celanese Corporation of America | 1935-1941 |
| Central Canada Loan and Savings Company | 1901-1941 |
| Central Grain Company, Ltd | 1929-1941 |
| Central Indoor Parking Garage, Ltd. | 1930 |
| Central Manitoba Mines | 1927, 1934-1937 |
| Central Patricia Gold Mines, Ltd | 1934-1939 |
| Central Porcupine Mines Ltd | 1936-1939 |
| Central Spring Company | 1928-1937 |
| Central Springs Company | 1920-1927 |
| Central Terminal Railway Company | 1919-1938 |
| Centre d'Information del Nickel, Milano, Italy | 1933-1940 |
| Centre d'Information du Nickel, Brussels, Belgium | 1933-1941 |
| Centre d'Information du Nickel, France | 1930-1941 |
| Centre Star Mining Company | 1901-1912 |
| Century Coal Co., Ltd | 1923, 1933-1941 |
| Chambers-Ferland Mining Company, Limited | 1909-1912, 1914 |
| Champlain Oil Products Ltd | 1935-1936 |
| Camplain Oil Sales Ltd | 1935 |
| Chaput-Hughes Mines, Ltd | 1932-1933 |
| Charcoal Supply Co. of Quebec, Ltd | 1931-1941 |
| Chartered Trust and Executor Company | 1920-1941 |
| Chase Tractors Corporation, Limited | 1920-1922 |
| Chateau Cheese Co., Ltd | 1931-1941 |
| Chateau Guay Ltd | 1936 |
| Chatham Oil Company Inc | 1931-1939 |
| Chats Falls Power Co | 1932-1941 |
| Chelmsford Ginger Ale, Inc | 1930-1932, 1934-1938 |
| Chemical Laboratory, Hamilton, Ont. | 1929 |
| Chemical Products, Limited | 1920-1923 |
| Chemical Research Corporation | 1930-1926 |
| Chesterville Larder Lake Gold Mines Ltd | 1938-1939 |
| Chibougamau Propectors, Ltd | 1934-1935 |
| Chicago and Milwaukee Electric Railroad Company | 1907-1908 |
| Chick Contracting Company, Ltd. | 1930-1931 |
| Chick Fuel and Supply Company, Ltd. | 1930-1931 |
| Chicouitimi Freehold Estates, Ltd. | 1930-1931 |
| Chicoutimi Pulp Company | 1915-1925 |
| Chilliwack Telephones, Ltd | 1931-1941 |
| Christie Brown and Company | 1925-1928 |
| Chromium Mining & Smelting Corp. Ltd | 1936-1938 |
| Chrysler Corporation | 1928 |
| Churchill Mining & milling Company, Ltd | 1934-1937 |
| Churchill River Power Company, Ltd | 1930-1941 |
| Cia Agricola y de Feurza Elect | 1933-1934 |
| Cia Brasileira de Cimento Portland | 1931-1941 |
| Cia de Luz y Fuerza de Pachuca | 1933-1941 |
| Cider and Vinegar Plant, Brighton, Ont | 1930-1941 |
| Citadel Brick Company, Ltd. | 1929, 1931-1933 |
| Cities Service Company | 1933-1940 |
| Cities Service Company and Subsidiaries | 1931-1932 |
| Cites Service Oil Company, Ltd., Canada | 1931-1932 |
| Citizens' Light & Power Company, Ltd | 1924-1941 |
| City Central Real Estate Company, Limited, The | 1912-1914 |
| City Club Breweries, Ltd | 1932-1941 |
| City Dairy Company Ltd. (Toronto) | 1901, 1906-1941 |
| City Dairy Farms Ltd. | 1931 |
| City Dairy Ltd. (Winnipeg) | 1931-1936 |
| City Gas Company (London) | 1931-1941 |
| City Gas & Electric Corporation, Ltd | 1934-1935 |
| City of Cobalt Mining Company | 1909-1911 |
| City of Santos Improvements Co., Ltd | 1929-1941 |
| City Renderers Limited | 1940-1941 |
| Civic Investment and Industrial Company | 1917-1941 |
| Claremont Paper Company Inc | 1926-1941 |
| Claremont Railway Co., Inc | 1932 |
| Clarke Brothers, Limited | 1919-1922 |
| Clay Products Agencies, Ltd. | 1930-1932 |
| Clear Vision Company, Ltd. | 1929-1935 |
| Clear Vision Pump Company, Ltd | 1936-1941 |
| Clearings Bank - 1919 and 1920 | 1921 |
| Clericy Consolidated Mines, Ltd | 1934-1936 |
| Cleveland Cobalt Silver Mines | 1907-1908 |
| Cliff Electrical Distributing Co. | 1928-1929 |
| Clifton Bakery, Ltd | 1930-1941 |
| Clifton Consolidated Mines, Ltd | 1934-1935 |
| Cloverdale Creamery, Ltd. | 1930 |
| Clydach Estates, Ltd. | 1930, 1939-1941 |
| Coast Copper Co., Ltd | 1928-1941 |
| Coast to Coast Oil Holdings, Ltd. | 1930-1931 |
| Coates Supplies and Agencies, Ltd. | 1930-1933 |
| Cobalt Central Mines Company | 1907-1910 |
| Cobalt Contact Mines, Limited | 1934-1937 |
| Cobalt Lake Mining Company | 1907-1909, 1911-1914 |
| Cobalt Light, Power and Water Company | 1927-1929 |
| Cobalt Silver Queen, Limited | 1907-1910 |
| Cockshutt Plow Company Ltd | 1912-1941 |
| Cohoes Rolling Mills Company | 1928-1938 |
| Coleman Light & Water Company, Limited | 1927-1939 |
| Collas Company, The C. Robin | 1906-1909 |
| Collapsible Tube Co., Ltd | 1941 |
| Collingwood Shipbuilding Company | 1905, 1907-1909, 1932 |
| Collingwood Shipyards, Ltd. | 1928-1932 |
| Collingwood Terminals, Ltd. | 1929-1931 |
| Colonial Bleaching and Printing Company | 1906-1934 |
| Colonial Investment and Loan Company | 1907-1928 |
| Colonial Lumber & Paper Mills, Ltd. | 1922-1924 |
| Colonial Nickel Co | 1932-1933 |
| Colprovia Roads (Ontario) Ltd. | 1931-1934 |
| Columbia Estate Company, Ltd | 1926-1941 |
| Columbia Macaroni Company, Ltd. | 1930-1931 |
| Columbus Rubber Co., of Montreal, Ltd | 1925-1939 |
| Columario Consolidated Gold Mines, Ltd | 1934 |
| Command Oils Ltd | 1938 |
| Commercial Alcohols, Ltd | 1932-1941 |
| Commercial Airways, Ltd | 1931 |
| Commercial Bank of Windsor | 1901-1902 |
| Commercial Cable Company, The | 1901-1939 |
| Commoil Ltd | 1937-1939 |
| Commonwealth International Corp., Ltd. | 1933 |
| Commonwealth Petroleum, Ltd | 1929-1939 |
| Companhia de Tel., Interestadoaes | 1929-1937 |
| Companhia Rede Tel., Bragantina | 1929-1937 |
| Companhia Telephonica do Estado de Sao Paulo | 1929-1937 |
| Compania Agricolay de Feurza Elect | 1931-1932 |
| Compania de Ferrocarriles Del Distrito Federal de Mexico S. A | 1932-1941 |
| Compania De Inversiones Urbanas, S.A. | 1925-1928 |
| Compania Dominicana de Telefones C. por A. | 1936-1941 |
| Compania Minera La India | 1941 |
| Compania Terretorial Mexicana, S.A. | 1925-1928 |
| Conduits Company Ltd | 1928-1935, 1938-1940 |
| Conduits National Co. Ltd | 1935, 1938-1940 |
| Confederation Life Association | 1901-1941 |
| Conger Lehigh Coal Company, Limited | 1922-1941 |
| Coniagas Alkali & Reduction Co. Ltd | 1924 |
| Coniagas Mines, Limited | 1907-1941 |
| Coniagas Reduction Co., Limited | 1910-1937, 1939-1941 |
| Coniaurum Mines, Limited | 1925-1941 |
| Consolidated Asbestos Limited | 1926-1941 |
| Consolidated Bakeries, Ltd. | 1929 |
| Consolidated Bakeries of Canada, Ltd | 1930-1941 |
| Consolidated Beverages (Eastern) Ltd., Montreal | 1938-1940 |
| Consolidated Beverages Ltd | 1935-1936 |
| Consolidated Chibougamau Goldfields Ltd | 1936-1939 |
| Consolidated Coal & Dock Co. Ltd | 1935-1941 |
| Consolidated Distilleries of Manitoba | 1928-1936 |
| Consolidated Distilleries, Limited | 1925-1937 |
| Consolidated Elevator Company, Ltd | 1930-1937 |
| Consolidated Food Products, Ltd | 1928-1936, 1938-1939 |
| Consolidated Fruit Company, Ltd | 1930-1941 |
| Consolidated Industries Limited | 1931-1937, 1940-1941 |
| Consolidated Industries Products, Ltd | 1932-1933 |
| Consolidater Industries Exports, Ltd | 1932-1933 |
| Consolidated Industries (Great Britain) Ltd | 1932-1933 |
| Consolidated Inv. Corporation of Canada | 1929-1941 |
| Consolidated Lake Superior Company | 1902-1904 |
| Consolidated Land Co., Ltd | 1940-1941 |
| Consolidated Light, Heat & Power Co | 1909-1910, 1938-1941 |
| Consolidated Mining and Smelting Company of Canada, Ltd | 1906-1941 |
| Consolidated Oka Sand and Gravel Company, Ltd | 1929-1941 |
| Consolidated Paper Corp., Ltd | 1932-1941 |
| Consolidated Press, Ltd | 1929-1941 |
| Consolidated Public Utility Investment Co., Ltd | 1931-1932 |
| Consolidated Sand and Gravel, Ltd | 1929-1941 |
| Consolidated Sand Company, Ltd | 1930-1941 |
| Consolidated Securities Limited | 1927-1929, 1931-1941 |
| Constructing and Paving Company of Ontario, Ltd. | 1930-1935 |
| Construction Equipment Company, Ltd | 1930-1938 |
| Consumers' Gas Co. of Montreal, Ltd | 1924-1941 |
| Consumers' Gas Company of Toronto | 1901-1941 |
| Continental Heat and Light Company | 1910, 1928-1929 |
| Continental Kirkland Mines., Ltd | 1941 |
| Continental Land Corp., Ltd | 1931-1940 |
| Continental Life Insurance Company | 1907-1941 |
| Continental Paper and Bag Corporation | 1930-1934 |
| Continental Paper and Bag Mills Corporation | 1927-1929 |
| Continental Supply Co, Ltd. | 1933 |
| Cooksville Company Ltd. The | 1929-1941 |
| Cooksville Shale Brick Company, Ltd | 1930-1941 |
| Cooper, Ltd., H. H | 1936-1941 |
| Cooper Gold Mines, Limited | 1934 |
| Copeland Flour Mills, Limited | 1922-1923 |
| Corby Distilleries Ltd | 1938-1941 |
| Cornwall Dairy Products, Ltd | 1931-1932 |
| Cornwall and York Cotton Mills Company, Ltd | 1930-1941 |
| Corporate Steel Products, Ltd | 1931-1932 |
| Corrugated Paper Box Co., Ltd., The | 1928-1941 |
| Corticelli Silk Co., Ltd. | 1928-1931 |
| Cosby Wirth Manifold Book Co | 1937-1941 |
| Cosgrave Export, Brewery Co., Limited | 1925, 1927-1938 |
| Cosgrave's Dominion Brewery Co., Ltd | 1937-1941 |
| Cosmos Cotton Company, Ltd | 1930-1941 |
| Cosmos Imperial Mills Limited | 1927-1941 |
| Coteau Rapids Transmission Company, Ltd | 1934-1939, 1941 |
| Coughlan Company, J. (Vancouver) | 1933-1941 |
| Coughlan, James Company of B.C. | 1930-1932 |
| Country Guide, Ltd., | 1932-1933 |
| Cowan-Dodson Bakeries, Ltd | 1930-1941 |
| Cramp Steel Company, Ltd | 1901 |
| Crescent Creamery, Ltd | 1929-1941 |
| Crestview Investments Ltd | 1941 |
| Cronite Foundry Co., Ltd | 1939-1941 |
| Crossley Brothers limited | 1940-1941 |
| Crossley Premier Engines Limited | 1940-1941 |
| Cross Builders Supply Company, Ltd | 1930-1931 |
| Crown Bakery, Ltd | 1930-1941 |
| Crown Bank of Canada | 1904-1908 |
| Crown Consolidated Mines, Ltd | 1935 |
| Crown Cork & Seal Company, Ltd | 1929, 1936-1941 |
| Crown-Dominion Oil Company, Ltd | 1930-1932 |
| Crown Life Insurance Company | 1907-1941 |
| Crown Reserve Mining Company | 1909-1927 |
| Crown Trust Company | 1911-1941 |
| Crow's Nest Pass Coal Company, Ltd | 1901-1909, 1912-1941 |
| Crow's Nest Pass Electric Light and Power Co., Ltd | 1919-1941 |
| Crystalite Products, Ltd | 1932-1941 |
| Cub Aircraft Corporation Limited | 1940-1941 |
| Cuba Railroad Company | 1907-1925 |
| Cuban Canadian Sugar Company | 1923-1930, 1940-1941 |
| Cumberland Land Company | 1925-1928, 1932 |
| Cumberland Railway and Coal Company, Ltd | 1911-1941 |
| Curtiss Aeroplane and Motor Co. Inc | 1931-1932 |
| Curtiss-Reid Aircraft Company, Ltd. | 1929-1936 |
| Curtiss-Reid Flying Service, Limited | 1934-1936 |
| Curtiss-Wright Export Corp | 1930-1932 |
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