Private company
Who owns Airlinx Transit Partners Inc.
One company in the researched set discloses a stake in Airlinx Transit Partners Inc., none of it sized by anyone who discloses it. Airlinx Transit Partners Inc. is private, so no 13F reports it: a 13F covers exchange listed positions only. These figures exist because each holder disclosed the stake in its own filings.
Airlinx Transit Partners Inc. - Profile
- Type
- joint venture
- Based in
- Canada
- Founded
- 2011
AirLINX Transit Partners is a Canadian project company formed by Aecon Construction and Materials Limited and Dufferin Construction Company to design, build and finance the airport spur of the Union Pearson Express rail link in Toronto. Selected by Infrastructure Ontario and Metrolinx in December 2011 and reaching financial close on a $128.6 million contract, it built a three kilometre elevated spur off the Weston Subdivision of the Georgetown GO corridor together with a new passenger station at Terminal 1 of Toronto Pearson International Airport. Construction began in 2012 and the line entered service in 2015, ahead of the Pan and Parapan American Games. Dufferin Construction, one of the two members, is the Ontario heavy civil contractor that now trades as part of CRH Canada.
Source
Airlinx Transit Partners Inc. files nothing with the SEC, so none of this comes from a filer record. The description was written for this site in August 2026 from Infrastructure Ontario: AirLINX Transit Partners backgrounder, Infrastructure Ontario: Financial Close Reached on Three-Kilometre Air Rail Link Spur Line and New Passenger Station Project and Aecon-Dufferin JV wins Toronto Air Rail Link contract (Railway Technology). The ownership figures below come from the holders' filings instead, and are sourced row by row.
The disclosed stakes
One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.
Where each figure comes from
A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.
- CRH plc. Canada. Products/services: Special-purpose entity on Ontario infrastructure construction. Not consolidated: accounted for under the equity method. CRH's FY2025 10-K reports a single combined 'Equity method investments' balance of $737 million as of 31 Dec 2025 ($620 million at 31 Dec 2024, $649 million at 31 Dec 2023, per the Adjusted ROIC reconciliation in Item 7 MD&A) covering ALL of the entities in this exhibit table together. The filing does not disclose a per-investee carrying value, so value_usd is null here per the combined-balance rule; the combined figure is recorded in notes and unknowns, not assigned to this row. sourcesource 2
What this page is not
It is not a complete register. It lists the holders who happen to be inside the researched set and disclosed the stake themselves. A private company can have many other shareholders, and nothing here rules them out: venture investors, founders and employees usually appear in no public filing at all. Percentages are of Airlinx Transit Partners Inc. where a holder stated one, and are missing where no holder did.