Open Engineering & Architecture Tenders in Ontario — 117 Live Today
Data updated July 25, 2026
Ontario's municipalities are in a sustained capital-renewal cycle, and the design work comes to market first: consulting engineering for roads, water, and stormwater from buyers like the Region of Halton and the City of London, architectural services for schools and civic buildings, and geotechnical and environmental assessments ahead of construction.
Winning firms treat these as pipeline intelligence too — today's design mandate is next year's construction tender. Current open engineering and architecture mandates across the province are below.
Latest open tenders
2026-043-CP - Engineering Design Services for the Upgrades at the Somerville Landfill
City of Kawartha Lakes
Bids&TendersCloses August 27, 2026Mixed-use Student Residence - Prime Consultant/ Architect Services RFP
BonfireCloses August 20, 2026This Request for Tender (RFT) includes multiple State of Good Repair (SOGR) and capital construction projects at various City of Toronto facilities. The Work…
Corporate Real Estate Management
Toronto BidsCloses August 14, 20262026-97 - Architectural Services for a new secondary school construction in Bowmanville
Conseil scolaire catholique MonAvenir
Bids&TendersCloses August 28, 2026Financial Audit Services
Professional Engineers Ontario
BiddingoCloses August 18, 2026PREQUAL - Architectural Services
BonfireCloses March 1, 2027Financial Audit Services
Professional Engineers Ontario
MERXCloses August 19, 2026RVH - RFPQ Negative Pressure Suite
N45 Architecture Inc.
MERXCloses August 12, 2026Stage II Mining Hazard Assessment and Engineering Support Services - Cobalt, ON
Ontario Northland Transportation Commission
MERXCloses August 26, 2026TBIPS - Geomatics Analyst for Mapping & Charting Establishment
Department of National Defence (DND)
CanadaBuysCloses August 10, 2026Request for Supplier Qualifications for Engineering Services to Establish a Vendor of Record
BonfireCloses August 20, 2026Request for Supplier Qualifications for Architectural Services to Establish a Vendor of Record
BonfireCloses August 20, 2026Two (2) Senior Life Cycle Management Specialist
Department of National Defence (DND)
CanadaBuysCloses August 10, 20262026-45-PW - The Provision of Professional Consulting Engineering Services Vertical Works Municipal Engineering Structural (Transportation) Building Science…
Township of Springwater
Bids&TendersCloses August 27, 2026RFSQ for Engineering Services to Establish a Vendor of Record
Waterloo Regional Health Network
MERXCloses August 20, 2026
Closing within 7 days(27)
The purpose of the Davisville Subway Trench Park Feasibility Study is to inform and support City staff and City Council decision-making regarding the potential…
Parks, Forestry & Recreation
Toronto BidsCloses July 27, 20262026-305V - Legal Surveying Services for the Preparation of Reference Plans, Expropriation Plans, Boundary Surveys, Surveyors Real Property Reports and…
Region of Peel
Bids&TendersCloses July 27, 2026178-R-26 - Consulting Engineering Services for Streetlighting System Upgrades - Old English & Other Areas$
City of Markham
Bids&TendersCloses July 27, 202601 - Architectural and Engineering Design Services
bids&tenders
Bids&TendersCloses July 27, 2026TBIPS I.11 Technology Architect - Network Engineering Classified Domains Services
Department of National Defence (DND)
MERXCloses July 28, 2026
More tenders in Ontario
W6890-260088 - Janitorial Services
Department of Public Works and Government Services (PSPC)
MERXCloses September 8, 2026EP916-270049 Emergency Storm Drainage System Reconstruction - Stage 2
Department of Public Works and Government Services (PSPC)
MERXCloses August 14, 2026Provision of Cable Installation Services for Canada’s Diplomatic and Consular Missions
Department of Foreign Affairs, Trade and Development (GAC)
MERXCloses July 30, 2027R807.1-Labelling and Posting Literature Review
Canadian Nuclear Safety Commission (CNSC)
MERXCloses September 17, 2026Mercury Program Project Support
National Research Council of Canada (NRC)
MERXCloses August 12, 2026
Most active buyers
- Department of National Defence (DND)8 open tenders
- Department of Public Works and Government Services (PSPC)4 open tenders
- City of Kawartha Lakes3 open tenders
- City of Markham3 open tenders
- City of Toronto3 open tenders
Engineering & Architecture tenders by city in Ontario
Other industries in Ontario
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