When asked about their competitors, Canadian competition lawyers usually mention Blake Cassels & Graydon LLP first. There is good reason for this: the firm’s competition department is both the largest and the busiest in Canada, by all accounts handling more mergers, cartel investigations and class actions than any other firm in the country. Indeed, the Blakes team has used its well-rounded practice and enviable client roster to remain the pre-eminent competition practice in the country.