A track record of excellence and ingenuity

Defending class action proceedings demands both procedural finesse and subject matter mastery.  You need a clear-eyed view of the merits of the substantive claim in order to craft a strategy that works within the class action procedure. 

Mallesons offers a large and specialised class action team with subject matter expertise, procedural skills and a successful track record.

Our partners are recognised for thinking outside of the box, not adopting cookie cutter solutions, and identifying the individual points that will drive the best solution available for our clients; be it financial products, product liability, public liability or competition.

Market highlights

Recent examples of our expertise include acting for:

  • National Australia Bank: in resolving (for A$49.5 million) the first consumer credit insurance class action. 
  • IAG, Allianz and Suncorp: three of Australia’s largest general insurers in separate class actions involving sale of add-on motor vehicle insurance.
  • Woolworths Group Ltd: in resolving (for A$44.5 million) a securities class action in relation to profit guidance.
  • Westpac: in successfully defending ASIC civil penalty proceedings and resolving the follow-on class action proceedings relating to responsible lending practices for home loans.
  • Commonwealth Department of Defence: in the largest class actions against the Commonwealth, relating to claims of historical environmental contamination at Defence facilities.
  • NatWest: in defending a cartel class action concerning Spot FX trading. 
Our Expertise in Dispute Resolution & Litigation
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Industry Recognition
  • Legal500 Australia 2025
    Tier 1, Class actions
Testimonials
  • It has experience in large class actions. KWM (Mallesons) is enjoyable to deal with, its lawyers are smart and friendly and they have support from other departments, who are also industry leading.
    Chambers and Partners Asia-Pacific 2025
PUBLICATION
The Review: Class Actions in Australia 2024/2025
This report analyses judgments, events and developments across class actions between 1 July 2024 and 30 June 2025.
17 October 2025

Latest Thinking

Insight

ASIC loses round one against Nuix but appeal and class action remain

On 23 April 2026, Justice Goodman of the Federal Court dismissed ASIC’s high-profile case against ASX-listed Nuix and its former directors.

22 June 2026

Insight

Causation in securityholder class actions: the Worley appeal explained

The Full Federal Court’s May 2026 decision in the Worley class action provides important clarification on causation and calculation of loss in securities litigation.

22 June 2026

Insight

Brambles class action judgment: a long wait for a curate’s egg

Brambles Limited, a successful Australian-listed multinational corporation, was the subject of a security-holder class action relating to guidance given in August 2016 concerning its financial performance in the 2017 financial year.

05 May 2026

Latest News

NEWS

KWM advises Dexus on A$900 million institutional placement and A$50 million security purchase plan

King & Wood Mallesons (KWM) is acting for Dexus in relation to its A$900 million institutional placement and up to A$50 million security purchase plan.

02 May 2019

Our Experts in Class Actions

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