Lawyers, Law: Barristers & Solicitors, Patent & Trade Mark Agents. For more than 100 years, Gowlings has provided a broad range of expert legal services. Today, as one of Canada's largest national law firms, Gowlings has offices in all major business and technology centres across Canada - Montreal, Ottawa, Kanata, Toronto, Hamilton, Waterloo Region, Calgary and Vancouver. Internationally, Gowlings has an office in Moscow to serve clients' IP needs in Russia and the CIS. The Firm's London office supports clients from around the world with an emphasis on energy, resources and infrastructure.