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

Living in a material world: Non-financial risks and the new frontier of securities class actions

The review period proved to be a defining year for securities class actions in Australia.

20 August 2026

Insight

Under (parallel) pressure: Class actions and regulatory proceedings

Almost a third of the class actions commenced in the review period intersected with a parallel regulatory proceeding, investigation or inquiry on the same subject matter.

20 August 2026

Insight

In the consumer space, the regulator isn’t the only sheriff in town

We explore Epic Games, a rare example of a consumer class action following on from proceedings brought by private litigants.

20 August 2026

Latest News

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