Osler, Hoskin & Harcourt LLP

The Bay Street formula of institutional corporate influence, premier tax sophistication, and venture-driven technology growth is personified by Osler, Hoskin & Harcourt LLP. Tracing its origins back to 1862, Osler stands as one of the cornerstone members of Canada's "Seven Sisters," deploying more than 500 lawyers across offices in Toronto, Montréal, Calgary, Vancouver, Ottawa, and New York. Led by National Managing Partner Doug Bryce and National Co-Chair Maureen Killoran KC, the firm consistently commands Band 1 rankings in Chambers Canada across Corporate/M&A, Tax, Competition & Foreign Investment Review, and Emerging and High Growth Companies. In the tax and regulatory spheres, Osler is widely regarded as one of the country's most formidable authorities, while its cross-border transactional teams frequently steer multi-billion-dollar private equity buyouts and public takeovers—including advising BC Partners on the CAD $13.5 billion majority stake divestiture of GardaWorld.

Osler has carved out a unique position on Bay Street by combining legacy blue-chip corporate advisory with the country's leading venture capital and emerging tech practice. The firm acts as principal counsel to a substantial share of Canadian high-growth startups and venture funds, giving junior lawyers exposure to early-stage financing rounds and public tech offerings alongside standard institutional deal flow. Operational efficiency is anchored by Osler Works, the firm's proprietary innovation arm that leverages automated diligence, transaction workflow software, and specialized legal project managers to streamline routine file administration.

On the recruitment front, Osler runs one of Bay Street's largest and most sought-after student cohorts, taking in 26 2L summer students and leading the Toronto market with 15 1L summer hires. Student development is steered by Director of Student Programs and Legal Recruitment Teri MacDonald and Specialist Sabrina Azeez. Students rotate through the firm's core transactional, litigation, and tax/specialty groups, gaining exposure to complex international deal structures and trial prep under the wing of formal mentor teams. Operating from the upper floors of 1 First Canadian Place at 100 King Street West, the firm balances intense deal sprints with strong cohort culture and consistently high articling retention rates.