MSU Mississauga Ltd. is a Canadian manufacturer of water and wastewater products founded in 1977. It has a 1,488 square meter facility in Mississauga employing 16 people. MSU designs and manufactures access hatches to meet various client requirements in size, layout, loadings and features. It has developed innovative hatch designs to meet specific client needs and has provided hatches for projects across Canada for clients such as the City of Toronto, Ontario Power Generation, and the University of Guelph.