H. Ian MacDonald

McGraw-Hill Ryerson Ltd. publishes and distributes educational and professional products in both print and non-print media. It operates through three divisions: Higher Education division, School division and Professional division. The Higher Education Division serves the university, community college, and career college market. This Division publishes and markets books and digital products and services primarily in the following disciplines: Business and Economics, Science, Math and Computer Science, Social Sciences and Humanities. The School Division serves the elementary and secondary school markets, primarily Grades 7-12. This Division publishes and markets books and digital products in the following fields: Mathematics, Science, Social Sciences, Literacy, English, Information Science and Special Education. The Professional Division markets and distributes books and digital products in the following categories: Business, Consumer, Education and Medical & Technical. These products are sold primarily to booksellers wholesalers and distributors, public, academic and research libraries, through special sales, and direct to professionals. The company was founded on August 22, 1944 and is headquartered in Whitby, Canada.

Part of Johnson Controls International Plc, York International SRL is a Peruvian company that specializes in refrigeration and heating equipment. The company is based in Lima, Peru.