Founded in 1926, GDI Ainsworth is a Canadian integrated building services provider and leading Energy Services Company (ESCO) delivering decarbonization, energy management, and infrastructure modernization solutions across Canada.

Through its energy services division, GDI Ainsworth helps public and private sector clients reduce energy use and greenhouse gas emissions, improve operational performance, and advance sustainability objectives. With more than 600 completed energy efficiency projects since 1997, the organization provides turnkey support across the project lifecycle, including audits, decarbonization planning, feasibility studies, incentive and funding support, engineering and design, construction management, commissioning, measurement and verification, remote monitoring, and ongoing optimization.

GDI Ainsworth differentiates itself through an integrated delivery model that combines in-house engineering, construction, service, and maintenance expertise under one accountable team. This approach simplifies coordination, reduces implementation risk, and helps clients sustain energy savings, operational reliability, occupant comfort, facility resilience, and asset performance over the long term.