Marshall & Swift provides building cost data to the commercial and residential real estate industries. The company features a product suite of cost manuals, specialty publications and software solutions. With more than 100,000 customers, it serves commercial, residential, high-value, agricultural and review appraisers, as well as lending institutions. Founded in 1932, Marshall & Swift is a provider of building cost valuation data and estimating tools for the appraisal, insurance and construction sectors. The company is owned by MacDonald, Dettwiler & Associates, which is a information services and products company. The parent company employs over 2,500 individuals in locations throughout the United States, Europe and Canada.