Tenders by category and region

Construction tenders in Ontario

52 open tenders

Who buys construction in Ontario

Public Services and Procurement Canada2,269 contracts · $12.2B
National Defence3,922 contracts · $2.4B
Global Affairs Canada1,724 contracts · $458.1M
Royal Canadian Mounted Police214 contracts · $96.1M
Parks Canada118 contracts · $81.0M
National Research Council Canada187 contracts · $57.5M
Correctional Service of Canada400 contracts · $20.9M
Environment and Climate Change Canada133 contracts · $18.3M

Window Replacement – R Building, South East Side, North Campus

Humber Polytechnic — CA-BONFIRE

Toronto, Ontario

Closing: 13 Nov 2026

Supply, Delivery and Installation of 3 Quiet Spaces Booths – 655 Bay Street, Toronto

Public Services and Procurement Canada — CA-CANADABUYS

Closing: 13 Nov 2026

Construction of Campground Expansion and Trailer Sanitary Dumping Station Replacement – Balsam Lake Provincial Park

Ontario Ministry of the Environment, Conservation and Parks — CA-ONTARIO-OTP

Closing: 16 Nov 2026

Preventive Maintenance and Inspection for Overhead Doors and Dock Levelers – National Capital Region (PSPC)

Public Services and Procurement Canada — CA-CANADABUYS

Closing: 17 Nov 2026

Design-Build Construction of Camp Sustain Theatre Coordination Centre at 5 CDSB Gagetown, New Brunswick

about 1 month ago

Defence Construction Canada — CA-CANADABUYS

Closing: 18 Nov 2026

Construction of New Park at 160 McAllister Road, North York – Site Work and Park Equipment

City of Toronto — CA-TORONTO

Toronto, Ontario

Closing: 19 Nov 2026

Commissioning Services for the Embassy of Canada in Manila, Philippines

Global Affairs Canada — CA-CANADABUYS

Closing: 20 Nov 2026

Architectural Services for FMT Lab Renovation at St. Joseph's Health Care, London ON

Healthcare Materials Management Services — CA-ONTARIO-OTP

Closing: 30 Nov 2026

Construction Management at Risk for UHN Princess Margaret Theranostics Centre – Imaging & Nuclear Therapy Redevelopment

about 13 hours ago

University Health Network — CA-BONFIRE

Toronto, Ontario

Closing: 04 Dec 2026

Design and Construction of 60 MW Data Center — National Capital Region (Modified Design‑Build, Security Requirements)

Defence Construction Canada — CA-CANADABUYS

Closing: 05 Jan 2027

Design and Construction of CETEMT New Facility and Compound at CFB Uplands, Ottawa

about 2 months ago

Defence Construction Canada — CA-CANADABUYS

Closing: 20 Jan 2027

Prequalification of General Contractors and Specialty Trades for Parliamentary Precinct Construction — National Capital Region

about 3 years ago

Public Services and Procurement Canada — CA-CANADABUYS

Closing: 31 Aug 2027

Light Construction Equipment Rental for Federal Departments — Ontario Region (Supply Arrangements to 2028-06-30)

over 3 years ago

Public Services and Procurement Canada — CA-CANADABUYS

Closing: 29 Jun 2028

Open Construction Source List for Nunavut – DND Construction and Civil Work (Apr 2026–Mar 2029)

Defence Construction Canada — CA-CANADABUYS

Closing: 31 Mar 2029

Open Construction Source List for Northern Canada Construction Services – Defence Construction Canada (Apr 1, 2026–Mar 31, 2029)

Defence Construction Canada — CA-CANADABUYS

Closing: 31 Mar 2029

Advance Procurement Notice — Real Property Operations & Canadian Forces Housing Base Program in Nunavut (with and without security requirements)

Defence Construction Canada — CA-CANADABUYS

Closing: 31 Mar 2029

Open Construction Source List for CFB Borden and Satellite Sites (Apr 1, 2026 – Mar 31, 2029)

Defence Construction Canada — CA-CANADABUYS

Borden, Ontario

Closing: 31 Mar 2029

Open Construction Source List – 22 Wing North Bay Construction Services (Apr 2026–Mar 2029)

Defence Construction Canada — CA-CANADABUYS

North Bay, Ontario

Closing: 31 Mar 2029

Open Construction Source List – CFB Petawawa & Pembroke Construction Services (Apr 1, 2026–Mar 31, 2029)

Defence Construction Canada — CA-CANADABUYS

Petawawa, Ontario

Closing: 31 Mar 2029

Apply to Open Construction Source List for ASU Toronto — Construction Services (Apr 1, 2026–Mar 31, 2029)

Defence Construction Canada — CA-CANADABUYS

Toronto, Ontario

Closing: 31 Mar 2029

Open Construction Source List for 8 Wing Trenton and Satellite Sites — Construction Services (Apr 2026–Mar 2029)

Defence Construction Canada — CA-CANADABUYS

Trenton, Ontario

Closing: 31 Mar 2029

Open Construction Source List for CFB Kingston, Brockville and Cornwall (Apr 2026–Mar 2029)

Defence Construction Canada — CA-CANADABUYS

Closing: 31 Mar 2029

Advance Notice: Real Property and Canadian Forces Housing Projects — Northern Canada (excluding Nunavut)

Defence Construction Canada — CA-CANADABUYS

Closing: 31 Mar 2029

Heavy Construction Equipment Rental (No Operator) for Federal Departments in Ontario (Excluding NCR)

over 2 years ago

Public Services and Procurement Canada — CA-CANADABUYS

Closing: 30 Jun 2029

General Contractors for QRT Source List – 22 Wing North Bay, Ontario (DCC)

Defence Construction Canada — CA-CANADABUYS

Closing: 20 Jul 2029

Top construction suppliers by contract value in Ontario

Bgis Global Integrated Solutions CA2 contracts · $7.1B
Bgis Global Integrated Solutions Canada1 contract · $2.6B
EllisDon Corporation (Ottawa)1 contract · $1.0B
Ellisdon Corporation19 contracts · $849.5M
Maple Reinders Constructors Ltd.4 contracts · $554.2M
PCL Constructors Eastern Inc -1 contract · $410.6M
MCW Custom Energy Solutions Ltd.6 contracts · $326.5M
Pomerleau Inc.3 contracts · $159.5M
Gami Ingeniería E Instalaciones1 contract · $158.0M
Ameresco Canada Inc.4 contracts · $127.0M

See the full supplier ranking

Recently awarded construction contracts in Ontario

Office Building Contract Awarded to 2287648 Ontario Inc. by Innovation, Science and Economic Development Canada2287648 Ontario Inc. · Innovation, Science and Economic Development Canada · $40K · 4 Feb 2019
Electrical Contract for Office Buildings Awarded to Carleton Electric LtdCarleton Electric Ltd · Innovation, Science and Economic Development Canada · $99K · 1 Nov 2018
Residential Building Construction Contract Awarded to Atlantic Mechanical by National DefenceAtlantic Mechanical · National Defence · $63K · 16 May 2018
Residential Building Construction Call-Up for National DefenceCoastal Restoration · National Defence · $77K · 15 May 2018
Construction of Industrial Buildings for National DefenceTJ Nolan Construction · National Defence · $41K · 15 May 2018
Construction of Industrial Buildings for National DefenceTJ Nolan Construction · National Defence · $34K · 15 May 2018
Industrial Building Construction Call-Up Against Standing Offer for National DefenceAdvanced Energy Management Ltd · National Defence · $13K · 15 May 2018
Award of Industrial Buildings Contract to Canadian Maritime Engineering Ltd by National DefenceCanadian Maritime Engineering Ltd · National Defence · $13K · 14 May 2018
Repair and Maintenance of Other Buildings for the Canadian Space AgencyConcrete Fusion Inc. · Canadian Space Agency · $12K · 25 May 2018
Supply of Building Systems Products to Agriculture and Agri-Food CanadaJohnson Controls Systems Products · Agriculture and Agri-Food Canada · $11K · 14 May 2018

See more awarded contracts

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7:00 am

3 new cleaning tenders in Ontario

Cleaning services for council buildingsInfrastructure · Municipality · Closes in 12 days

Window and facade cleaning, hospital sitesHealth & Medical · Health authority · Closes in 19 days

Waste collection for depot sitesEnergy & Environment · Transport agency · Closes in 23 days

From your alert: Cleaning, Ontario

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