Ranking tables

Litigation: Securities | Canada

Ontario

This section ranks those firms and individuals which advise on civil litigation on behalf of businesses, high net worth individuals and other non-public sector entities. The primary focus of this section is corporate litigation and litigation arising out of commercial arrangements, including shareholder disputes, post-M&A disputes and contractual disputes. Less weight is given to civil litigation types which are covered elsewhere in the Canada Guide, for example banking litigation, professional negligence, civil fraud, insurance or restructuring/insolvency. Disputes involving public sector bodies (judicial reviews, procurement challenges, etc.) will not be covered in this section. Inquests, public inquiries, tribunals, regulatory investigations and related enforcement actions will not be covered in this section. This chapter exclusively covers courtroom litigation, rather than alternative dispute resolution methods like mediation and arbitration.

Rankings overview for Departments

All Departments profiles

1

Band 1

  1. Bennett Jones LLP
    1
    Bennett Jones LLP
    Litigation: Securities
    2025 | Band 1 | 6 Years Ranked
    Bennett Jones represents a number of high-profile public and private clients from across a range of industries in corporate and commercial disputes. Clients frequently look to the firm for its multi-jurisdictional scope. Its Toronto office houses a distinguished securities litigation practice, covering regulatory and class action proceedings, with other areas of strength including breach of contract and shareholder disputes. The department also regularly assists with litigation relating to competition, insolvency and professional negligence, as well as fraud, oppression and post-M&A litigation. It continues to act for provincial public bodies across Canada in high-profile disputes with tobacco companies seeking healthcare cost recovery.
  2. Crawley MacKewn Brush LLP
    1
    Crawley MacKewn Brush LLP
    Litigation: Securities
    2025 | Band 1 | 6 Years Ranked
    Crawley MacKewn Brush is a Toronto-based litigation boutique with an expansive securities and corporate disputes practice. Particularly renowned for its securities regulatory and class action defence work, the team has further experience in directors' and officers' liability claims, shareholder disputes and broader civil litigation. The firm attracts leading clients from an array of sectors, such as financial services, sports and energy, as well as former corporate directors facing OSC investigations.
  3. McCarthy Tétrault LLP
    1
    McCarthy Tétrault LLP
    Litigation: Securities
    2025 | Band 1 | 5 Years Ranked
    McCarthy Tétrault possesses a strong team that is firmly placed in the top echelons of the dispute resolution market in Ontario. The firm's Toronto lawyers offer significant experience of commercial claims, securities litigation and class action proceedings. The team's other areas of notable capability include civil fraud, professional liability disputes, tax litigation, defective product claims and cases arising from demutualisation. It is particularly well regarded for its in-depth knowledge of the financial services sector, and also provides expertise across a variety of other industries, including automotive, energy, education, telecommunications, healthcare and cannabis.
  4. Osler, Hoskin & Harcourt LLP
    1
    Osler, Hoskin & Harcourt LLP
    Litigation: Securities
    2025 | Band 1 | 6 Years Ranked
    With an impressive litigation team in Toronto, Osler, Hoskin & Harcourt regularly defends clients against multi-jurisdictional class actions, as well as advising on commercial and securities litigation. The firm possesses additional expertise advising on fraud, professional negligence and tax-related litigation, and demonstrates notable proficiency handling disputes resulting from competition, securities and environmental investigations. The department has a strong profile in the financial services sector and benefits from the support of the firm's integrated national litigation platform, as well as the cross-border capabilities born from its extensive US network.
  5. Torys LLP
    1
    Torys LLP
    Litigation: Securities
    2025 | Band 1 | 6 Years Ranked
    A firm of choice for litigation in Toronto, Torys has a deep bench and a strong reputation for handling complex files. The firm has a thriving securities litigation practice covering negligence, misrepresentation and fraud, as well as impressive capacity for oppression claims, competition, employment and energy matters and class action defence. It is well positioned to act for clients on multi-jurisdictional and cross-border mandates. The team offers substantial experience across various sectors, including technology, financial services, transportation and media.
2

Band 2

  1. Blake, Cassels & Graydon LLP
    2
    Blake, Cassels & Graydon LLP
    Litigation: Securities
    2025 | Band 2 | 6 Years Ranked
    Blake, Cassels & Graydon is a high-profile Canadian law firm with an admirable litigation offering and a notable presence in the Ontario market. The team maintains a strong focus on disputes relating to contested M&A transactions and commercial contracts, securities and general commercial class action defence, and securities regulatory disputes. The firm is particularly active in the financial services, real estate and pharmaceutical sectors, and the team has additional expertise in insolvency, trade and product liability litigation.
  2. Borden Ladner Gervais LLP
    2
    Borden Ladner Gervais LLP
    Litigation: Securities
    2025 | Band 2 | 6 Years Ranked
    Borden Ladner Gervais has a solid service offering in the Ontario litigation market, with notable expertise in securities, fraud and banking litigation. The team fields notable experience in administrative and constitutional law matters, regularly appearing on urgent injunctions and judicial reviews, as well as novel matters such as extradition proceedings. Other areas of strength include class actions, product liability and construction litigation. Well regarded for its expertise in the financial services and energy sectors, the team also advises clients from industries such as automotive, natural resources and communications. It maintains an active presence in both Toronto and Ottawa.
  3. Cassels Brock & Blackwell LLP
    2
    Cassels Brock & Blackwell LLP
    Litigation: Securities
    2025 | Band 2 | 6 Years Ranked
    Cassels Brock & Blackwell operates a distinguished practice in the securities litigation space in Ontario, where it is particularly sought out for its expert representation in class action suits. The firm lists a range of financial institutions among its clients, as well as high-profile current and former company directors and corporations in sectors such as mining, leisure and cannabis. The Toronto-based team demonstrates considerable expertise in internal investigations, including those stemming from whistle-blower complaints and securities regulatory proceedings.
  4. Davies Ward Phillips & Vineberg LLP
    2
    Davies Ward Phillips & Vineberg LLP
    Litigation: Securities
    2025 | Band 2 | 6 Years Ranked
    Davies Ward Phillips & Vineberg is a leading law firm with an impressive capacity for handling large commercial disputes both at trial and before the appellate courts. Its expertise encompasses securities litigation, shareholder disputes and insolvency, as well as class action defence and competition law. The department demonstrates further proficiency in handling industrial tort claims and disputes relating to the recovery of care costs and environmental damage. The Toronto-based team is commended for its litigation capabilities in sectors such as mining, lottery and gaming, automotive and telecommunications, and it is also highly experienced in coordinating multi-provincial litigation files.
  5. Fasken
    2
    Fasken
    Litigation: Securities
    2025 | Band 2 | 5 Years Ranked
    Fasken's Ontario litigation team regularly assists clients from the transportation, pharmaceutical and financial services sectors with a range of different matters including commercial disputes, securities litigation and white-collar defence. Recognised for its handling of high-profile professional liability disputes, the department holds notable ability in resolving cases through summary judgment motions. The firm operates an active Ottawa litigation practice with significant experience of competition and procurement matters. It also offers robust class action expertise.
3

Band 3

  1. Lenczner Slaght
    3
    Lenczner Slaght
    Litigation: Securities
    2025 | Band 3 | 6 Years Ranked
    Lenczner Slaght is universally recognised as a leader in the Ontario market. Based in Toronto, the firm demonstrates significant national reach and offers expertise across a wide range of industry sectors, including healthcare and pharmaceuticals, financial services, education, transportation and information technology, as well as acting for public sector bodies. Widely viewed as a top choice for 'bet the company' litigation, the team is regularly selected to handle corporate fraud cases, breach of contract and consumer claims, as well as securities and shareholder disputes. The group is further noted for its experience of professional liability, defamation, public inquiries, class actions, and restructuring and insolvency.
  2. Norton Rose Fulbright
    3
    Norton Rose Fulbright
    Litigation: Securities
    2025 | Band 3 | 6 Years Ranked
    Norton Rose Fulbright maintains a well-established Ontario litigation practice, offering services out of Toronto and Ottawa. The team regularly advises on securities litigation, shareholder disputes, breach of contract claims and consumer protection cases. It is also noted for its handling of product and professional liability, insolvency and competition litigation. The firm has an impressive reputation in the field of securities, working on proxy contests, insider trading and misrepresentation, with a strong track record in class actions. The team is highly regarded for its in-depth knowledge of various industry sectors, including energy, financial services, life sciences and construction.
  3. Stikeman Elliott LLP
    3
    Stikeman Elliott LLP
    Litigation: Securities
    2025 | Band 3 | 4 Years Ranked
    Stikeman Elliott has a strong presence in Ontario, with offices in both Toronto and Ottawa. The firm's litigation department routinely assists clients with a range of disputes involving commercial contract claims, insolvency, securities and contested corporate transactions. With notable capability in class action defence, the group wins particular acclaim in professional negligence, misrepresentation and product liability claims. It is further recognised for its representation of current and former executives and directors in oppression proceedings, as well as breach of contract and fiduciary duty. The firm also enjoys a significant reputation for its work in the energy, construction and technology sectors.
  4. Stockwoods LLP
    3
    Stockwoods LLP
    Litigation: Securities
    2025 | Band 3 | 6 Years Ranked
    Stockwoods is a Toronto boutique law firm with extensive experience of civil, commercial, administrative and public law litigation. The group routinely represents clients in contractual disputes, oppression remedies and professional negligence claims. The team is also regularly involved in securities class actions relating to fraud and market manipulation, and is sought out for its counsel on judicial reviews. It is further noted for its expertise in insolvency, white-collar defence and municipal litigation.
  5. Groia & Company
    Litigation: Securities
    2025 | Band 3
  6. Wright Temelini LLP
    Litigation: Securities
    2025 | Band 3