Thompsons Limited has become one of the largest and leading agri-business in Canada supplying agronomic inputs in Ontario, along with being a leading Canadian exporter of food grade edible beans and quality grains. The Laresco division of Thompsons Limited began in 1998 as their Agronomy and Precision Ag Department. Laresco’s staff are consultants of: Agriculture, the Environment, Geographic Information Systems, and Global Positioning Systems.