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TORONTO – Infrastructure Ontario has announced the Request for Proposals (RFP) stage has closed for teams to submit their bids for the Alliance for the Yonge North Subway Extension – Stations, Rail and Systems ProjectStatusPost-BidValue$1.4BLocationRichmond Hill, ON L4C 9X7SectorPublic – State/ProvincialTypeTransportation TerminalsData as of September 3, 2026.

Eleven teams were shortlisted and invited to respond to an RFP in May.

The YNSE SRS contract is being delivered through a owner‑formed Alliance procurement model and is made up of three distinct work packages: Underground works, surface works and design and systems integration, explains a release.

For each of the three packages, the following teams submitted their proposals by the deadline: 

Underground works:

• Trillium Construction Partners – Acciona Infrastructure Â鶹´«Ã½Ó³»­ Inc., Amico Infrastructures Inc.
• NorthLine Partners – Flatiron Dragados Â鶹´«Ã½Ó³»­, Inc., Green Infrastructure Partners Inc.
• CrossTransit Group – Ferrovial Construction Â鶹´«Ã½Ó³»­ Inc., VINCI Construction Grands Projets Â鶹´«Ã½Ó³»­ Inc.
• North Extension Transit Alliance (NExTA) – Aecon Infrastructure Management Inc., Formento de Construcciones y Contratas Â鶹´«Ã½Ó³»­ Ltd., Pomerleau Major Projects Inc.

Surface works:

• Kenaidan Murphy Joint Venture (KMJV) – Kenaidan Infrastructure Ltd., Murphy Infrastructure Inc.
• NorthLine Partners – Flatiron Dragados Â鶹´«Ã½Ó³»­, Inc., Green Infrastructure Partners Inc.
• North Extension Transit Alliance (NExTA) – Aecon Infrastructure Management Inc., Formento de Construcciones y Contratas Â鶹´«Ã½Ó³»­ Ltd., Pomerleau Major Projects Inc.
• True North Corridor Alliance – Bird Construction Industrial Services Ltd., Ledcor Ontario Infrastructure Ltd.

Design and systems integration:

• NorthOne Integration Partner – Arup Â鶹´«Ã½Ó³»­ Ind., Hatch Ltd., Egis Â鶹´«Ã½Ó³»­ Ltd.
• NovaNorth – AtkinsRéalis Â鶹´«Ã½Ó³»­ Inc., CIMA Â鶹´«Ã½Ó³»­ Inc., NORR Architects & Engineers Limited.
• WSP-AECOM – AECOM Â鶹´«Ã½Ó³»­ ULC, WSP Â鶹´«Ã½Ó³»­ Inc.

The Yonge North Subway Extension will extend the TTC’s Line 1 subway service approximately eight kilometres from the existing terminus at Finch Station to Vaughan, Markham and Richmond Hill with five new stations.

One team from each package of work will be selected to enter into a Project Alliance Agreement with Metrolinx. The successful proponents are expected to be announced in 2027.