Department profile
Johnson Winter Slattery

Competition/Antitrust

Asia-Pacific Guide 2026 : Australia


Johnson Winter Slattery

Rankings

About

Provided by Johnson Winter Slattery

Johnson Winter Slattery has one of the largest competition and antitrust practices in Australia, with in-depth knowledge of all aspects of competition and consumer law. In an increasingly regulated environment, clients often come to JWS on business-critical competition litigation, mergers and acquisitions and cartel investigations. 

JWS has extensive experience acting for and against the Australian Competition and Consumer Commission (ACCC) in independent matters and can provide a heightened level of up-to-date regulatory insight.

JWS assists with:

    • complex mergers and acquisitions, joint ventures and alliances, including ACCC informal merger clearance and merger arbitrage 
    • criminal and civil cartel investigations, including immunity applications 
    • anti-competitive agreements, understandings, concerted practices and misuse of market power issues, including investigative and regulatory processes, authorisations, notifications and exemptions
    • third-party infrastructure access rights, industry codes of conduct and market inquiries and studies
    • class actions
    • all aspects of Australian Consumer Law. 

Industries (17)

  • Aerospace & Defence
  • Automobiles & Parts
  • Chemicals
  • Construction & Materials
  • Consumer Product Manufacturing
  • Energy
  • Financial Services
  • Food & Drink Producers
  • Government
  • Health Care
  • Media
  • Pharmaceuticals & Life Sciences
  • Private Clients / Individuals
  • Retail
  • Technology, Hardware & Electronics
  • Transportation
  • Travel & Leisure

Chambers Review

Provided by Chambers

Competition/Antitrust - Australia

Band 3

Band 3


What the Team is Known For

Johnson Winter Slattery maintains a compact, specialist practice, noted for providing a particularly high level of hands-on partner engagement and in-depth cartel expertise that extends to advising on international and criminal cartel investigations initiated by the Australian Competition and Consumer Commission (ACCC). The firm is also prominent in representing clients from the aviation, consumer goods, energy and resources, financial services and healthcare sectors, and advises extensively on consumer law investigations and prosecutions. The practice regularly offers guidance on merger clearance issues for multinationals headquartered overseas, and is frequently sought out specifically for competition-related advice by companies that use other firms for broader corporate work.

Work Highlights

Provided by Chambers

  • Johnson Winter Slattery acted for the ACCC in its Federal Court proceeding against Mastercard for alleged misuse of market power and other anti-competitive conduct in breach of Australia’s competition laws in the supply of debit card acceptance services.

Strengths

Provided by Chambers

  • Johnson Winter Slattery has a well-known and respected competition practice, with the size and technical skills necessary for complex and sophisticated matters.

    Competition/Antitrust respondentAsia-Pacific
  • The team at Johnson Winter Slattery has strong experience in competition matters.

    Competition/Antitrust respondentAsia-Pacific

Notable Practitioners

Provided by Chambers

  • Eminent PractitionersAldo Nicotra
    Eminent PractitionersAldo Nicotra

    Aldo Nicotra

    Aldo Nicotra is based in Sydney and advises on all areas of competition work, enjoying a particularly high reputation for his handling of contentious mandates, including cartel cases.

    • Aldo is commercial in his thinking and can convey complex legal matters to boards and executives in ways they understand.

      Competition/Antitrust respondentAsia-Pacific
  • Band 3Sar Katdare
    Band 3Sar Katdare

    Sar Katdare

    Sar Katdare maintains a diverse and busy practice from the firm's Sydney office, covering issues such as merger authorisation and ACCC investigations and prosecutions.

    • Sar Katdare is always excellent. He is really helpful and provides very pragmatic advice.

      Competition/Antitrust respondentAsia-Pacific
    • Sar Katdare can cut through complex regulatory issues with clear advice.

      Competition/Antitrust respondentAsia-Pacific

Ranked Individuals at Johnson Winter Slattery (2)

Australia

Members

Provided by Johnson Winter Slattery

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