WeirFoulds LLP

WeirFoulds LLP, established in 1860, is one of Canada's oldest and most prestigious law firms. With a focus on four primary areas—Litigation, Corporate, Property, and Government Law—the firm offers comprehensive legal services tailored to meet the diverse needs of its clients. Its team comprises leading practitioners recognized for their expertise and commitment to delivering strategic, cost-effective, and innovative legal solutions.

The firm's reputation is underscored by consistent recognition in esteemed legal rankings. Notably, The Globe and Mail has named WeirFoulds among Canada's Best Law Firms for four consecutive years, including 2025, highlighting its excellence in Administrative & Public Law, Construction, and Dispute Resolution. Additionally, the firm has been ranked in 36 practice areas in the inaugural 2025 edition of Best Law Firms – Canada by Best Lawyers.

WeirFoulds is dedicated to a client-centric approach, emphasizing responsiveness and personalized service. By fostering strong partnerships, the firm ensures that its legal advice aligns with clients' priorities and objectives. This commitment to excellence and client satisfaction has solidified WeirFoulds' position as a leading regional law firm in Ontario.

About WeirFoulds LLP

Practice areas

Business

Civil & Human Rights

Employment & Labor

Intellectual Property

Lawsuits & Disputes

Languages spoken

English

Social media

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Practice areas

Business

WeirFoulds LLP's Corporate & Commercial practice offers comprehensive legal services to a diverse clientele, including established public companies, financial institutions, start-ups, and growth-oriented businesses. The firm's expertise encompasses a wide range of corporate and commercial transactions, such as mergers and acquisitions, corporate governance, joint ventures, debt and equity financings, and private equity investments. By thoroughly understanding each client's business objectives, WeirFoulds delivers tailored, tactical legal advice, ensuring clients receive strategic support aligned with their specific needs.

Accounting & Auditing

Administrative

Admiralty & Maritime

Agriculture

Antitrust

Aviation

Banking & Finance

Business Registration

Communications & Media Law

Contract

Due Diligence

Employer

Environment

Franchising

Gaming

Government Contract

Health Care

Investment

International

Legal Document

Licensing

Merger & Acquisition

New Business Formation

Office Solutions

Oil, Gas & Energy

Securities

Tax

Transportation

Venture Capital

Nonprofit & Charitable Organizations

International Trade Law

Government Relations & Lobbying

Financial Services Regulation

Tax Increment Financing

Civil & Human Rights

WeirFoulds LLP provides comprehensive legal services in human rights law, assisting both public and private sector clients with a range of issues, including employment-related matters such as pay equity plans, accommodation of employee disabilities and family status claims, and fostering inclusive workplaces. The firm advises public sector organizations on compliance with human rights and employment equity legislation, ensuring proper provision of health, educational, and other public services. Additionally, WeirFoulds represents clients in mediations and before human rights commissions and tribunals, demonstrating a commitment to upholding human rights standards across various sectors.

Civil Rights

Constitutional Law

Disability

Disability Insurance

Social Security Disability

Discrimination

Native People

Education Law

Military Law

Animal Law

Faith-Based Law

State, Local, and Municipal Law

Veterans Benefits

Employment & Labor

WeirFoulds LLP's Employment & Labour practice provides comprehensive legal services to employers across both federal and provincial sectors. The firm's experienced lawyers assist clients in maintaining union-free workplaces, represent management in collective bargaining, and litigate disputes before labour relations boards, courts, and human rights tribunals. They offer guidance on regulatory compliance, draft employment contracts—including provisions for bonuses, stock options, non-compete, non-solicitation, and severance—and support employers through workplace disputes, investigations, and terminations. Additionally, the team has launched Equity, Diversity & Inclusion (EDI) legal and consultation services to further support clients.

Employment Rights

Hiring & Firing

Job Discrimination

Labor Law

Pension

Retirement

Sexual Harassment

Social Security

Wage & Hour

Wrongful Termination

Whistleblower & Qui Tam

Employment Benefits & Executive Compensation

Intellectual Property

WeirFoulds LLP's Technology and Intellectual Property practice offers comprehensive services to protect and commercialize clients' intellectual property assets. The firm's expertise includes prosecuting applications for trademarks, copyrights, and industrial designs, as well as managing global IP portfolios. They provide litigation, arbitration, and mediation services for IP disputes, including infringement cases. The team assists with internet technology matters such as e-commerce, domain name disputes, and website policies. They also support the acquisition, protection, and commercialization of IP and technology assets through licensing, acquisition agreements, and research collaborations. Additionally, the firm advises on cybersecurity, compliance with Canada's anti-spam law (CASL), and M&A transactions involving IP and technology assets.

Patent

Trademark

Art & Cultural Property Law

Lawsuits & Disputes

WeirFoulds LLP's Litigation & Dispute Resolution practice is recognized for its proficiency in managing complex and high-profile cases across various sectors, including corporate, commercial, intellectual property, class actions, employment, securities, tax, Aboriginal, defamation, estates and trusts, administrative, energy, environment, competition, and constitutional law disputes. The firm's litigators have extensive experience representing government entities, public and private companies, civil organizations, and individuals before trial and appellate courts, as well as regulatory boards and tribunals. They are adept at handling document-intensive litigation, multi-party trials, and developing innovative legal solutions, including alternative dispute resolution methods such as mediation and arbitration. The team leverages sophisticated in-house and external resources, including an e-Discovery team, to resolve disputes efficiently and effectively.

ADR Mediation & Arbitration

Appeal

Class Action

Litigation

Ethics and Professional Responsibility

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