Open Professional Services Tenders in Ontario — 102 Live Today
Data updated July 25, 2026
Consulting, audit, legal, planning, and advisory mandates appear across every tier of Ontario's public sector — federal departments (PSPC, DND) via CanadaBuys, provincial agencies via the Ontario Tenders Portal, and a long tail of municipalities like Markham and the regional governments via Bids&Tenders.
It's a market where scope varies wildly, from single-study engagements to multi-year vendor-of-record arrangements; watching the flow beats checking portals. The open mandates are listed below with buyers and closing dates.
Latest open tenders
Mercury Program Project Support
National Research Council of Canada (NRC)
CanadaBuysCloses August 12, 2026This RFP is an invitation by the City of Toronto (the “City”) to prospective Suppliers to submit Bids for Funding Proximity Analysis — Business Analysis &…
Parks, Forestry & Recreation
Toronto BidsCloses August 10, 2026P-330-26 - Consulting Services for Media Strategy and Buying$
Region of Halton
Bids&TendersCloses August 18, 2026FIN2026-087P - Consulting Services for Environmental Third-Party Peer Reviews
City of Barrie
Bids&TendersCloses August 18, 2026Financial Audit Services
Professional Engineers Ontario
BiddingoCloses August 18, 2026RFP - CDS-FFS-26-12 - Consulting Services for Building Restoration at Five (5) Norfolk County Heritage Facilities
Norfolk County
Bids&TendersCloses August 18, 2026ACAN _ Professional Services for ServiceNow
MERXCloses August 11, 2026Financial Audit Services
Professional Engineers Ontario
MERXCloses August 19, 2026RFP No. AT2026-004 – Consulting Services
Laurentis Energy Partners Inc.
BiddingoCloses August 4, 2026ACAN _ Professional Services for ServiceNow
Office of the Auditor General (OAG)
CanadaBuysCloses August 11, 2026RFQ IPS 2026 0720 CR42 & CR43 Phase 5 - Professional Services to conduct Material, Field and Laboratory Testing Services
County of Essex
Bids&TendersCloses August 13, 2026External Audit Services
BonfireCloses August 7, 2026Architectural and Engineering Consulting Services for Diagnostic Imaging Clinic - Kitchener-Waterloo
St. Joseph's Healthcare Hamilton
BiddingoCloses August 17, 2026Road and Sidewalk Needs Study & Transportation Master Plan
Township of Georgian Bay
BiddingoCloses August 19, 2026TBIPS - Implementation and Deployment of Cloud Analytics Solutions
Department of National Defence (DND)
CanadaBuysCloses August 11, 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, 2026RFP-Davisville Subway Trench Park Feasibility Study
City of Toronto
MERXCloses July 27, 2026Q26-115 - Professional Services – Stirling Avenue South (Greenbrook Drive to Avalon Place) Road Reconstruction
City of Kitchener
Bids&TendersCloses July 27, 2026NRFP # 2026-114-49-016 - Consulting Services for a Data‑Driven Storm Sewer Maintenance Program Using Historical CCTV Data Analysis$
Town of Caledon
Bids&TendersCloses July 27, 2026Communications and Marketing Professional Services VOR - RFSQ Refresh
BonfireCloses July 27, 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 Public Works and Government Services (PSPC)5 open tenders
- Department of National Defence (DND)5 open tenders
- Oxford County3 open tenders
- Department of Transport (TC)3 open tenders
- Town of Caledon3 open tenders
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