Open Professional Services Tenders in Ontario — 95 Live Today
Data updated September 20, 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
W6369-22DE11_A - Professional Services Support Contract (PSSCIII)
Department of Public Works and Government Services (PSPC)
MERXCloses October 12, 2026W6369-22DE11_A - Professional Services Support Contract (PSSCIII)
Department of Public Works and Government Services (PSPC)
CanadaBuysCloses October 12, 2026FIN2026-203Q - Professional Forestry Consulting Services
City of Barrie
Bids&TendersCloses October 15, 2026W8485-24SC15 - Professional Services in Support of ULTOOLS Applications
Department of Public Works and Government Services (PSPC)
MERXCloses October 7, 2026TBIPS UX Consultant
Office of the Auditor General (OAG)
CanadaBuysCloses October 2, 2026TSPS - 2. Business Consulting change management services - Evaluation of WAGE's Components - Interviews, Surveys and Case Studies for the Evaluation of WAGE’s…
Department of Women and Gender Equality (WAGE)
CanadaBuysCloses October 5, 2026W8485-24SC15 - Professional Services in Support of ULTOOLS Applications
Department of Public Works and Government Services (PSPC)
CanadaBuysCloses October 7, 2026RFRC-2610266 - Landscape Architectural Consulting Services
City of Richmond Hill
Bids&TendersCloses October 16, 2026Q26-136 - Professional Services – Dixon Street and Rockway Drive Road Reconstruction
City of Kitchener
Bids&TendersCloses October 9, 20262026-133-P - Consulting Services for Georgetown Expansion Lands Secondary Plan
Town of Halton Hills
Bids&TendersCloses October 14, 2026Shillington Hall Rebuild Project Management
Black River-Matheson Township
MERXCloses September 25, 2026Re-tender - Overview of the Canadian Off-road Mobile Equipment Supply Chain
Department of the Environment (ECCC )
CanadaBuysCloses October 6, 2026ENGINEERING CONSULTING SERVICES – RUNWAY 07-25 AND TAXIWAYS AT YQG
City of Windsor
BiddingoCloses October 8, 2026MB-26-03 - Municipality of Bayham - Consulting Services for Architectural Design & Engineering - Port Burwell Main Beach Washrooms
County of Elgin
Bids&TendersCloses October 5, 2026MC-2026-27 - External Audit Services
County of Middlesex
Bids&TendersCloses October 9, 2026
Closing within 7 days(35)
Consulting Services for Window Replacements - Neighbours
Housing Services Corporation
MERXCloses September 21, 2026Neighbours – Consulting Services for Window Replacements
BonfireCloses September 21, 2026Consulting Services for Window Replacements - Neighbours
Housing Services Corporation (HSC)
BiddingoCloses September 21, 2026IT Professional Services
CBC/Radio Canada
MERXCloses September 22, 2026Dynamics and Power Platform Professional Services
Office of the Superintendent of Financial Institutions (OSFI)
CanadaBuysCloses September 22, 2026
More tenders in Ontario
Request for Quotations for Occupational Therapy Services for the City of Toronto's Seniors Services and Long-Term Care Division
Seniors Services and Long-Term Care
Toronto BidsCloses October 16, 2026The City of Toronto invites qualified suppliers to submit quotations for the non-exclusive supply of all labour, materials and equipment necessary by an…
Toronto Paramedic Services
Toronto BidsCloses October 15, 2026W6369-22DE11_A - Professional Services Support Contract (PSSCIII)
Department of Public Works and Government Services (PSPC)
MERXCloses October 12, 2026B560 AHU/Class III Generator Construction Project
BonfireCloses September 21, 2026Simulated Battlefield Training Support Services RFP-54
Department of Public Works and Government Services (PSPC)
CanadaBuysCloses September 24, 2026
Most active buyers
- Department of Public Works and Government Services (PSPC)9 open tenders
- Town of Caledon3 open tenders
- Department of National Defence (DND)3 open tenders
- Ontario Shared Services3 open tenders
- Corporate Real Estate Management2 open tenders
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