List of the Largest Companies in Alberta

Name	Sector	Revenue $mlns	M&A Activity			Last 5 Years
Name	Sector	Revenue $mlns	Total	Buy	Sell	Last 5 Years
Suncor NYSE : SU Calgary, Alberta, Canada website	Energy Services and Equipment	41,713	6	2	4
Enbridge NYSE : ENB Calgary, Alberta, Canada website	Energy Services and Equipment	40,643	19	14	5
Imperial Oil NYSE : IMO Calgary, Alberta, Canada website	Oil/Gas Exploration	37,110	1	-	1
Canadian Natural NYSE : CNQ Calgary, Alberta, Canada website	Oil/Gas Exploration	31,550	4	4	-
Parkland Acquired Sunoco 2025-05-05 $9.1B Calgary, Alberta, Canada website	Oil/Gas Exploration	21,512	16	15	1
Husky Energy Acquired Cenovus Energy, Inc. 2020-10-25 Calgary, Alberta, Canada website	Oil/Gas Exploration	15,434	1	1	-
Agrium, Inc. Acquired Nutrien 2018-01-02 Calgary, Alberta, Canada website	Agriculture	14,795	11	8	3
Canadian Pacific Kansas City (CPKC) NYSE : CP Calgary, Alberta, Canada website	Transportation	11,056	5	5	-
TC Energy NYSE : TRP Calgary, Alberta, Canada website	Energy Services and Equipment	10,467	16	12	4
AltaGas Toronto (TSX) : ALA Calgary, Alberta, Canada website	Renewable Energy	9,461	6	4	2
Gibson Energy Toronto (TSX) : GEI Calgary, Alberta, Canada website	Energy Services and Equipment	8,969	5	3	2
SECURE Waste Infrastructure Toronto (TSX) : SES Calgary, Alberta, Canada website	Oil/Gas Exploration	8,111	10	9	1
Stantec NYSE : STN Edmonton, Alberta, Canada website	Business Services	5,701	65	63	2
Pembina Toronto (TSX) : PPL Calgary, Alberta, Canada website	Energy Services and Equipment	5,612	5	4	1
MEG Energy Acquired Cenovus Energy, Inc. 2025-08-22 $6.00455B Calgary, Alberta, Canada website	Oil/Gas Exploration	4,363	-	-	-
Tourmaline Oil Toronto (TSX) : TOU Calgary, Alberta, Canada website	Oil/Gas Exploration	4,294	11	11	-

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