LAWYER PROFILE

Matthew Certosimo

Canada 2026

Borden Ladner Gervais LLP

Ranked in 1 practice area

Employment & Labour

Ontario

11 years ranked

About

Provided by Borden Ladner Gervais LLP

Practice Areas

Certified by The Law Society of Ontario as a Specialist in Labour Law. Partner and former national leader (2011–2016) of BLG’s Labour and Employment Group. Frequently appears before the courts including the appellate level. Counsels and acts on behalf of private and public sector employers in labour relations, employment law, including wrongful dismissal litigation, labour arbitrations, collective bargaining, human rights complaints and charges under the Occupational Health and Safety Act. Chair and speaker at numerous labour and employment law conferences.

Career

Partner. Certified Specialist (Labour Law), Law Society of Ontario. Ontario Bar, 1995.

Adjunct Professor, Employment Law, University of Toronto, 1996–2011.

Publications

Co-author of Just Cause: The Law of Summary Dismissal in Canada.

Author, Ontario/Federal Labour and Employment Statutes & Commentary.

Author of Ontario Employment and Labour Law & Commentary (LexisNexis) and Federal Employment and Labour Law & Commentary (LexisNexis).

Author of The Regulation of Picketing: An Employer’s Primer to Labour Injunctions (Thomson Carswell).

Assistant editor, Canadian Cases on Employment Law – a national law report series (Carswell).

Chambers Review

Provided by Chambers

Chambers Canada Guide

Employment & Labour - Ontario

Band 3

Individual Editorial

Matthew Certosimo excels in representing employers across both the public and private sectors. Based in Toronto, he continues to represent major national clients in the full gamut of labour and employment matters. He is also adept at grievance arbitrations and collective bargaining.

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Strengths

Provided by Chambers

Matt is very responsive to our needs and has a deep understanding of our business.
Employment & LabourChambers Canada Guide
He gets to know your business and works hard to build a relationship.
Employment & LabourChambers Canada Guide
Matthew has an exceptional understanding of labour law and provides insightful, well-reasoned advice, as well as deep legal expertise and strategic thinking.
Employment & LabourChambers Canada Guide