The extensive network originally operated under the TransCanada banner is owned and managed by TC Energy Corporation, a major Canadian publicly traded energy infrastructure enterprise headquartered in Calgary, Alberta. TC Energy operates core assets spanning natural gas pipelines, power generation, and energy storage facilities across Canada, the United States, and Mexico. Its subsidiary, TransCanada PipeLines Limited, acts as a primary operating entity within the corporate structure, overseeing thousands of miles of critical transmission pipelines that deliver a significant share of North America's daily natural gas consumption.