A. T. McLaren Limited is a Hamilton, Ontario based surveying firm, which specializes in Legal and Engineering Surveys. Since establishment in 1968 we have completed over 35,000 projects for both the public and private sector throughout the Hamilton-Wentworth, Halton, Niagara Regions, and Wellington County. This experience has allowed us to undertake many diverse and challenging projects for a broad range of clients, which include government agencies, municipalities, developers, homebuilders, architects, engineers, and private individuals.