Overview
Trillium Rail Partners designs and builds transit infrastructure for Metrolinx's Eglinton Crosstown West Extension in the Greater Toronto Area. Its work connects the extension to the existing Line 5 at Mount Dennis and carries the route west to Renforth Drive in Mississauga. The company installs rail tracks and the equipment that powers and controls trains, including signaling, communications and ventilation, alongside station buildings and facilities for emergency access. It earns revenue through its project delivery agreement with Metrolinx, combining design and construction within the stations, rail and systems package. Trillium Rail Partners was founded in 2025 and is headquartered in Mississauga, Ontario.
Work here?Claim your company
Simplify's take
What believers are saying
- TRP starts work before final designs: its delivery agreement permits early construction during collaborative design development.
- Students get extended project experience: TRP reported a 16-month scheduling co-op placement in September 2026.
- TRP's project advances into fieldwork: Metrolinx dates station excavation's start to July 2026.
What critics are saying
- TRP's final contract economics remain undisclosed: Infrastructure Ontario lists the value as pending financial close.
- TRP depends on other delivery packages: the extension separates its stations contract from two tunnel contracts and elevated guideway.
- Union workers join through subcontractors: TRP channels union project opportunities through participating subcontractors.
What makes Trillium Rail Partners unique
- TRP combines three builders: Acciona Infrastructure Canada, Alberici Constructors and Amico Major Projects form the consortium.
- TRP uses a separate design team: WSP Canada handles design alongside the consortium construction partners.
- TRP spans three station formats: its package includes four underground, two elevated and one at-grade or trenched station.
Help us improve and share your feedback! Did you find this helpful?