List of the Largest Companies in Ontario

Name	Sector	Revenue $mlns	M&A Activity	Last 5 Years
Weston Toronto (TSX) : WN Toronto, Ontario, Canada website	Food	46,826	2	2	-
Loblaw Companies Toronto (TSX) : L Brampton, Ontario, Canada website	Retail	46,375	7	6	1
RBC Toronto (TSX) : RY Toronto, Ontario, Canada website	Financial Services	43,697	10	7	3
MAGNA NYSE : MGA Aurora, Ontario, Canada website	Automotive	42,836	24	22	2
TD Bank Toronto (TSX) : TD Toronto, Ontario, Canada website	Financial Services	42,758	11	10	1
Manulife NYSE : MFC Toronto, Ontario, Canada website	Financial Services	34,645	11	10	1
Fairfax Toronto (TSX) : FFH Toronto, Ontario, Canada website	Insurance	28,445	19	14	5
Scotia Bank NYSE : BNS Toronto, Ontario, Canada website	Financial Services	25,550	10	7	3
Sun Life NYSE : SLF Toronto, Ontario, Canada website	Insurance	21,797	13	9	4
CIBC Toronto (TSX) : CM Toronto, Ontario, Canada website	Financial Services	19,402	7	4	3
Intact Toronto (TSX) : IFC Toronto, Ontario, Canada website	Insurance	18,044	15	11	4
Rogers Communications Toronto (TSX) : RCI Toronto, Ontario, Canada website	Communications	15,660	17	16	1
Barrick NYSE : B Toronto, Ontario, Canada website	Metals/Mining	12,922	11	1	10
Canadian Tire Toronto (TSX) : CTC Toronto, Ontario, Canada website	Retail	12,433	5	4	1
Synnex Canada Ltd. Private Toronto, Ontario, Canada website	Distribution	10,845	3	3	-
Constellation Software Toronto (TSX) : CSU Toronto, Ontario, Canada website	Software	10,066	50	50	-

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Largest Companies in Ontario