WeirFoulds
WeirFoulds LLP is a Toronto-headquartered Canadian law firm (est. 1860) delivering integrated Litigation, Corporate, Property, and Government Law services to enterprise, mid-market, government, and private clients across Ontario and select cross-border mandates.
- Company typePrivate
- Founded1860
- HeadquartersToronto, Canada
- Headcount251–500
- GTM typeB2B
- OfferingServices
What WeirFoulds does
WeirFoulds LLP is a Canadian limited liability partnership law firm headquartered in the TD Bank Tower in Toronto with a secondary office in Oakville. The firm self-describes as "one of Canada's oldest and most prestigious law firms" and is structured around four broad practice pillars: Litigation & Dispute Resolution, Corporate & Commercial, Property Law, and Government Law, supplemented by a Technology & Intellectual Property practice. It serves enterprise, mid-market, government, regulator, and high-net-worth clients across Ontario and on select cross-border and Caribbean matters, with disclosed mandates including the CAD $126.8 million going-private of Lorne Park Capital Partners, representation of the Law Society of Ontario and the Ontario College of Pharmacists in appellate matters, and corporate work for clients such as Massey Capital.
The firm delivers services through a traditional partner-led model. Headcount is reported at 251–500 employees, of which 57 lawyers were recognized in the 2026 Best Lawyers in Canada directory (with 59 recognized in the 2025 edition) plus additional partners, associates, law clerks, planners, and administrative staff. Its underlying technology stack is described as a standard legal practice infrastructure—document management, time and billing databases, e-discovery tools, security software and firewalls—augmented by a PIPEDA-compliant privacy program, an AODA-aligned accessibility framework, and two consecutive years of SOC 2 certification. No proprietary software, API, SDK, or AI-native product is offered; the firm monetizes only professional services delivered by personnel.
Revenue is generated exclusively through professional services billing (hourly fees, retainers, file disbursements, and engagement-based professional fees administered through time-and-billing systems), with quote-based, non-publicly disclosed pricing and an online payment portal for client invoices. Go-to-market is enterprise field-sales driven by direct partner relationships, augmented by thought leadership (a Commercial Litigation Insights blog, publications, and earned media in Lexpert, Chambers, Best Lawyers, and The Globe and Mail), community-led initiatives (WeirFoulds Women, the WeirFoulds-Arnup Cup moot competition, United Way Greater Toronto support), and event-driven participation in CBA/OBA conferences. Marketing and demand generation are content-led, with no channel partners, resellers, or marketplaces involved in service delivery.
WeirFoulds firmographics
Firmographics- Name
- WeirFoulds
- Legal name
- WEIRFOULDS LLP
- Website
- https://weirfoulds.com
- Company type
- Private
- Founded year
- 1860
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- WeirFoulds LLP is a Toronto-headquartered Canadian law firm (est. 1860) delivering integrated Litigation, Corporate, Property, and Government Law services to enterprise, mid-market, government, and private clients across Ontario and select cross-border mandates.
- Ownership category
- akta.pro rank
WeirFoulds industry classification
Industry- Product category
- Legal Services
- NAICS
- Offices of Lawyers (541110)
- SIC
- Services-Legal Services (8111)
- akta.pro primary industry
- Mergers & Acquisitions (M&A) & Securities Law (BPAHAAAI)
- akta.pro secondary industry
- Litigation Support & Expert Witness Services (BPAHALAG)
Keywords
Where WeirFoulds is headquartered
LocationHeadquarters
- HQ city
- Toronto
- HQ country
- Canada
- HQ region
- North America
Offices2 records
Markets served
WeirFoulds business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Others
Revenue model
- Legal Services (Professional Services): Core revenue stream from providing legal advice and services to a wide range of clients across Litigation, Corporate, Property and Government Law practice areas. Includes hourly billings, retainer fees, file disbursements, and engagement-based professional fees administered through client (time and billing) databases.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | — | Quote-based professional legal services billing |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels8 records
WeirFoulds product offering
Product offeringCore offering
WeirFoulds LLP is a Canadian law firm that delivers integrated legal services across four broad practice pillars: Litigation & Dispute Resolution, Corporate & Commercial, Property Law, and Government Law. The firm advises Ontario-based and Canadian businesses, governments, regulators, and individuals on complex matters including commercial litigation, M&A and securities transactions, real estate development, planning and construction law, administrative and public law, and technology and intellectual property. Service delivery is supported by dedicated Practice Groups (e.g., Technology & Intellectual Property, Commercial Leasing, Planning & Land Development) and a robust publications and insights engine.
Product overview
WeirFoulds LLP is a Canadian law firm (not a software vendor), so its "products" are service offerings organized as practice-area groups rather than a unified software platform. The firm is structured around four broad practice pillars: Litigation & Dispute Resolution, Corporate & Commercial, Property Law, and Government Law, supplemented by specialized practices such as Technology & Intellectual Property. Service delivery is augmented by ongoing insight streams — the Commercial Litigation Insights blog and the broader Publications/News/In the Media content — that support client advisory work and brand presence. No software platform, modules, or technical product integrations are offered.
Differentiator
Problem solved
Functional benefit
Brands
- WeirFoulds Women: An internal affinity group/initiative at WeirFoulds LLP focused on supporting and advancing women lawyers at the firm.
- WeirFoulds-Arnup Cup
Products and services
- Litigation & Dispute Resolution Practice Core litigation practice covering commercial litigation, class actions, arbitration & mediation, insolvency & restructuring, subrogation & recovery, professional negligence, and media & defamation matters, for corporate, government, and individual clients across Ontario and Canada.
- Corporate & Commercial Practice Corporate practice covering mergers & acquisitions, securities & public companies, private equity, banking & financial services, blockchain and digital assets, and franchise law, for Ontario-based and Canadian businesses.
- Property Law Practice Property-focused practice including real property, commercial leasing, planning & land development, expropriation, municipal, construction, design-build, and zoning & official plans, for real estate developers, landlords, tenants, property owners, and construction industry participants.
- Government Law Practice Government-facing practice including administrative & public law, constitutional, human rights, Indigenous peoples, infrastructure/P3, procurement, and regulatory work before tribunals and courts, for government entities, regulators, and professional bodies.
- Technology & Intellectual Property Practice Specialized technology and IP practice serving industries including retail, transportation, government, education, manufacturing, food, IT, finance, and professional services. Covers IT service agreements, licensing, software development, blockchain, fintech, and AI.
- Mergers & Acquisitions Practice Specialty M&A advisory practice advising corporate clients on mergers, acquisitions, going-private transactions, plan of arrangement transactions, and related corporate matters; representative mandate includes acting as legal counsel to Lorne Park Capital Partners Inc. on a CAD $126.8 million going-private transaction (October 2025).
- Commercial Leasing Practice Specialty commercial leasing practice advising landlords, tenants, and shopping centre owners on commercial lease structuring, negotiations, and ongoing leasing matters across Ontario.
- Planning & Land Development Practice Specialty planning and land development practice advising developers on planning approvals, zoning, official plans, site plans, subdivision control, mixed use development, and CMHC-insured financing across the Greater Toronto and Hamilton Area.
- Wills, Trusts & Estates Practice Private Client practice advising individuals, families, charities, and non-profits on wills, trusts, estates, estate planning, probate, charitable giving, and intergenerational wealth transfer.
Quantifiable outcome
- 57 lawyers recognized in 2026 Best Lawyers in Canada and Best Lawyers: Ones to Watch
- +5 more outcomes
Companies that use WeirFoulds
Customer profileNamed customers6 records
Segments6 records
Ideal customer profiles5 records
WeirFoulds technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
WeirFoulds partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered minor.
- OCAD UniversityminorFor WeirFoulds' Asian Heritage Month celebration on May 27, 2026, the firm collaborated with OCAD University (and Partial Gallery) to acquire an original artwork by a recent OCAD U graduate of Asian heritage. OCAD U President Ana Serrano participated via virtual introduction.
- Partial Gallery (Melissa Patel)minorWeirFoulds collaborated with Partial Gallery to curate a shortlist of five works for consideration as part of a firmwide art selection initiative. Toronto-based artist Melissa Patel was selected and her work "Convergence" unveiled by Partner Philip Cho.
- United Way Greater TorontominorWeirFoulds is proud to support United Way Greater Toronto through 2025 fundraising campaign (announced December 9, 2025).
- CAN-TECHminorWeirFoulds Partner Lisa Danay Wallace named President of CAN-TECH, a Canadian technology law association.
- SCG LegalminorWeirFoulds recognized by SCG Legal for completing DEI Advocate Certification Program. SCG Legal is an international network of law firms; WeirFoulds participates in the network.
Scale indicators10 records
Recent moves6 records
Expansion highlights5 records
WeirFoulds competitors and assessment
Company assessmentDirect peers
- McCarthy Tétrault LLP: One of Canada's largest full-service law firms with national offices and a similarly broad litigation, corporate, property, and government law footprint. Directly comparable as a top-tier Canadian firm competing for the same enterprise, government, and mid-market mandates.
- Stikeman Elliott LLP: Leading Canadian full-service firm with strong corporate, M&A, securities, and litigation practices and a Toronto office of comparable scale. Direct competitor for premium M&A, securities, and commercial litigation mandates in Ontario.
- Davies Ward Phillips & Vineberg LLP: Toronto-based full-service firm with a highly regarded corporate/securities, M&A, and litigation practice. Closely comparable in headcount range and prestige, competing for the same high-end corporate and dispute resolution mandates.
- Blake, Cassels & Graydon LLP: Among Canada's largest and most prestigious national firms with deep corporate, M&A, litigation, and intellectual property practices. Direct competitor for enterprise and government mandates in Ontario and across Canada.
- Osler, Hoskin & Harcourt LLP: Top-tier Canadian full-service firm with strong corporate, securities, M&A, litigation, and tax practices and a major Toronto office. Directly comparable in practice breadth and client profile.
- Torys LLP: Toronto-based full-service firm known for corporate, M&A, securities, and litigation work for major Canadian enterprises and financial institutions. Closely comparable in headcount and practice mix.
- Bennett Jones LLP: Canadian national firm with strong corporate, M&A, securities, energy, and litigation practices and a Toronto office. Comparable in scale and a direct competitor for corporate, government, and litigation mandates in Ontario.
- Fasken Martineau DuMoulin LLP: Canadian national full-service firm with comparable corporate, M&A, litigation, and government law practices and a major Toronto presence. Direct competitor for enterprise and government mandates.
- Cassels Brock & Blackwell LLP: Toronto-headquartered full-service firm with a strong corporate/securities, M&A, real estate, and litigation practice. Closely comparable in size, location, and client profile, particularly for mid-market and developer clients.
Broad incumbents
- Norton Rose Fulbright Canada: Global full-service firm with a substantial Canadian practice spanning corporate, M&A, litigation, and government work. Comparable in practice mix but operates as part of a much larger international network, giving it broader cross-border reach than WeirFoulds.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
WeirFoulds social profiles
Digital presenceWeirFoulds compliance and trust
Trust signalCompliance3 records
WeirFoulds financial estimates
Financial estimateRevenue estimate
Valuation estimate
WeirFoulds leadership team
Management profileNumber of profiles
Profiles4 records
WeirFoulds funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
WeirFoulds M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about WeirFoulds
What does WeirFoulds do?
WeirFoulds LLP is a Canadian law firm that delivers integrated legal services across four broad practice pillars: Litigation & Dispute Resolution, Corporate & Commercial, Property Law, and Government Law. The firm advises Ontario-based and Canadian businesses, governments, regulators, and individuals on complex matters including commercial litigation, M&A and securities transactions, real estate development, planning and construction law, administrative and public law, and technology and intellectual property. Service delivery is supported by dedicated Practice Groups (e.g., Technology & Intellectual Property, Commercial Leasing, Planning & Land Development) and a robust publications and insights engine.
Is WeirFoulds a public or private company?
WeirFoulds is a private company. It is classified as management employee owned and is currently operating.
When was WeirFoulds founded?
WeirFoulds was founded in 1860. It employs 251 to 500 people.
Where is WeirFoulds based?
WeirFoulds is headquartered in Toronto, Canada, in the North America region.
How does WeirFoulds make money?
One revenue line is on record: legal Services (Professional Services).
Who are WeirFoulds's main competitors?
Direct peers on record are McCarthy Tétrault LLP, Stikeman Elliott LLP, Davies Ward Phillips & Vineberg LLP, Blake, Cassels & Graydon LLP, Osler, Hoskin & Harcourt LLP, Torys LLP, Bennett Jones LLP, Fasken Martineau DuMoulin LLP and Cassels Brock & Blackwell LLP. Norton Rose Fulbright Canada is listed as a broad incumbent.
Does WeirFoulds have an API?
No public API is recorded for WeirFoulds.
What industry is WeirFoulds in?
WeirFoulds's product category is Legal Services. Its primary akta.pro industry code is BPAHAAAI, Mergers & Acquisitions (M&A) & Securities Law, with a secondary code of BPAHALAG, Litigation Support & Expert Witness Services. Its NAICS code is 541110 and its SIC code is 8111.