Greenbriar Sustainable Living Inc. engages in the development of entry-level housing, renewable energy, green technology, and sustainable investment projects in the United States, Canada, and Puerto Rico. It operates through three segments: Real Estate, Solar Energy, and Corporate. It also develops the Montalva solar project located in Puerto Rico; and Sage Ranch, a real estate community in California. The company was formerly known as Greenbriar Capital Corp. and changed its name to Greenbriar Sustainable Living Inc. in November 2023. Greenbriar Sustainable Living Inc. was incorporated in 2009 and is based in Vancouver, Canada.