Toronto data-centre market reference

The Toronto market extends from downtown carrier buildings to Markham, Vaughan, Brampton and Mississauga. Telehouse, Cologix and other providers operate or market space in central interconnection buildings. Digital Realty and Equinix publish larger suburban facilities. Hut 8 Canada names Mississauga and Vaughan sites. The metro count therefore includes both dense network nodes and facilities built for different space and power requirements.

Sources: Telehouse Canada, Digital Realty, Equinix, Hut 8 Canada

Multiple operator records can point to the same physical building because each source describes its own facility or service presence. This directory does not collapse those relationships without evidence, but it also does not index an undifferentiated page. Publication requires sourced specifications and a uniqueness review. Readers should identify whether they are comparing buildings, operators, suites or network access.

Sources: Telehouse Canada, Cologix, Canadian Web Hosting

Telehouse Canada publishes facilities at 151 Front Street West, 250 Front Street West and 905 King Street West, connected by dark fibre. It reports 20 MW and 205,000 square feet of IT space at 151 Front, with 10 MW figures at each of the other locations. The operator also describes direct access to the Toronto Internet Exchange at 151 Front. These are clear differentiators for network-led deployments.

Sources: Telehouse Canada

Downtown interconnection does not answer every workload need. Floor loading, cooling density, construction access, power expansion and maintenance windows can favour another building. A common architecture places network exchange and cloud access in the central carrier ecosystem while primary compute or recovery systems use a suburban facility. The directory lists nearby infrastructure but never infers a connection or tenancy.

Sources: Telehouse Canada, Digital Realty

Digital Realty's Toronto page names TOR11 in Vaughan, YYZ10 in Markham and YYZ12 downtown. It publishes individual building sizes, including 104,300 square feet for YYZ10. The YYZ10 page also lists 2N UPS redundancy, N+1 cooling and selected compliance and sustainability certifications. These details belong to that facility record and are not copied across the metro.

Sources: Digital Realty, Digital Realty

Equinix publishes six Toronto-area facilities across Toronto, Markham and Brampton. Cologix publishes five Toronto facilities, including Markham sites. This suburban spread can improve options for space, parking, loading and geographic separation, but each address has a distinct grid and fibre context. A metro label alone is not enough for a technical shortlist.

Sources: Equinix, Cologix

Ontario's current energy plan provides for provincial prioritization of certain data-centre connections. The policy is tied to growing electricity demand and public-interest criteria. At the same time, the established connection process still requires transmitter and IESO review. A project can therefore need both policy approval and technical assessment. Neither should be described as automatic.

Sources: Government of Ontario

Hydro One's transmission process and the IESO assessment run in parallel. The IESO's large computational load requirements call for system-impact work and project models that reflect the proposed operating behaviour. A developer should establish whether the site is distribution or transmission connected, which utility owns the local assets and what studies are required before announcing an energization date.

Sources: Hydro One, Independent Electricity System Operator

Ontario bills can include energy, Global Adjustment, delivery and regulatory components. Large facilities may face customer-class and peak-related rules that differ from smaller businesses. Delivery rates also vary across local utilities. Two Toronto-area sites with the same annual consumption can therefore produce different bills because of service voltage, peak contribution, losses, utility territory and connection assets.

Sources: Ontario Energy Board

A public market guide should explain these components rather than publish one Toronto rate. Build the financial case from a utility-approved service scenario, a defensible load profile and current tariff documents. Model uncertainty in future demand and network charges. Keep any operator power price or bundled colocation quote separate from the regulated electricity structure.

Sources: Ontario Energy Board, Hydro One

The records below cover the wider Toronto operating area used by this guide. Open each page for locality, source, check date and facility-specific claims. An unverified capacity field means the public source did not state a value for that record. It is not a statement that the facility lacks capacity. Ask the operator for current available power, density, cross-connect options and expansion terms.

Sources: Digital Realty, Equinix

For resilience planning, test whether the shortlist provides genuine geographic and utility separation rather than different suites in one building or corridor. Confirm network route diversity, maintenance access and the recovery objective. Toronto offers a deep facility ecosystem, but the useful design comes from matching each building to a precise role and verifying the power path behind it.

Sources: Telehouse Canada, Independent Electricity System Operator