Mainstay Engineers LP is a Saskatchewan-based engineering, project management, and owner’s representative firm supporting industrial, infrastructure, mining, energy, and utility projects across Canada.
Mainstay provides engineering, project and construction management, field engineering, commissioning support, quality management, cost control, and owner’s representative services. Our team works alongside clients from early planning and design through construction, commissioning, and project closeout.
Mainstay is 51% owned by Buffalo River Development Limited Partnership, the wholly owned economic development arm of Buffalo River Dene Nation. This Indigenous ownership is supported by active participation in governance, management, professional services, and project delivery.
Our focus is practical: provide experienced people, strong project controls, and hands-on support that helps clients deliver safe, well-managed projects.
