Jonathan N. Borrelli

Jonathan Borrelli is a Partner at KMB Law, head of the firm’s Employment and Labour Law practice group, and a member in the Commercial Litigation group.

He is a fierce yet thoughtful advocate who assists clients in managing disputes before a wide variety of courts and tribunals.

He has experience with a wide range of workplace issues and employment-related litigation matters. He has helped both employers and employees with employment and contractor agreements, wrongful dismissal matters, occupational health and safety, accommodation, terminations, investigations, restrictive covenants, workplace policies and workplace human rights. He also advises on employment law aspects of corporate transactions.

Jonathan provides strategic day-to-day advice to employers, and is also called on to guide long term human resource planning. He takes a practical and proactive approach when dealing with any workplace issue, and helps employers create and institute policies and procedures to increase productivity and reduce conflict.

Jonathan represents his clients before all levels of courts and tribunals in Ontario, including the Superior Court of Justice, Human Rights Tribunal of Ontario, Ontario Labour Relations Board, Ontario Court of Justice, Small Claims Court, the Ontario Labour Relations Board, and the Landlord and Tenant Board. Samples of Jonathan’s cases include: defences of wrongful dismissal claims, defences of discrimination allegations and human rights damages, defence of intrusion upon seclusion claim, defences of occupational health and safety charges, prosecution of breach of contract claims, prosecution of corporate oppression claims on behalf of shareholders, and others.

Jonathan is a regular speaker at events related to employment law, human rights, harassment, and accommodation. In 2025, Jonathan was selected to act as Chair of the Board of Directors of the Mississauga Board of Trade.

Serving the dental industry since 2016, Jonathan has received his Certificate in Dental Practice Management from the University of Toronto. He is pleased to advise dentists on their unique human resources needs.

In 2019, Jonathan obtained Workplace Investigation certification from the Human Resources Professionals Association. He completes impartial workplace investigations related to harassment, violence, sexual harassment, theft, misconduct, and any other workplace matter.

Prior to joining KMB Law, Jonathan worked at one of Ontario's largest boutique employment law firms and a boutique dental law firm.