Current Procurements

The IESO aims to offer qualified vendors a fair, transparent, and accessible procurement process. The IESO’s current opportunities are provided below, as well as on

Interested parties are encouraged to subscribe to MERX, the Canadian Public Tenders service, for timely access to information about procurement opportunities.

**Effective March 31, 2017 the IESO will no longer provide access to procurement opportunities through this page. All available procurement opportunities will be posted on Interested parties should refer to the Agencies, Crown & Private Corporations page for access to the IESO’s opportunities.**

Questions related to procurement should be directed by email to or to the IESO Contact listed for each procurement opportunity.

IESO Policies

All vendors who are engaged to provide goods or services to the IESO will be required to read, understand and agree to comply with the following policies:

Type Procurement Item
Issued Closing Deadline


Dispatch Scheduling and Optimization Engine and Day Ahead Calculation Engine Reviews

March 23, 2017


3:00 EDT on April 24, 2017


Advanced Malware Protection Solution

March 20, 2017

2:00 pm on April 19, 2017


Non-Energy Benefit Study

March 17, 2017

3:00 p.m. on April 7, 2017 


Conservation Demand Management & Electricity Market Training, Information and Advisory Services

March 13, 2017

3:00 p.m. on April 11, 2017


Temporary Staffing Services

March 7, 2017

2:00 p.m. on April 7, 2017


Benefits Administration

March 3, 2017

3:00 p.m. on April 18, 2017


IESO Request for Supplier Qualification

July 4, 2016

3:00 p.m. on June 25, 2021