Bondi Energy retrofits multifamily and commercial buildings with heat pumps and other energy-efficiency equipment and is passionate about affecting positive change in the environment through energy-efficiency projects, co-founded by Belinda Gilbey and Aaron Graben. They are both based in Toronto, Canada. Belinda is an entrepreneur with a Bachelor's degree in mechanical engineering from the University of Ottawa. After working in the renewable energy sector she learned all about heat pump technology and saw the mass benefits. Aaron was originally one of Belinda's customers and after setting up Bondi together, he played a key role in establishing Bondi as a prominent player in energy-efficient retrofits for multifamily and commercial buildings.