Kirsten Webb

Clayton Utz
Partner Sydney

Kirsten is a highly experienced competition lawyer, one of the best in Australia, in my view. Her expertise and commercial awareness are exceptional and she shows initiative in exploring solutions for our business.

- Chambers Asia-Pacific


Kirsten brings exceptional leadership and commercially focused advice across the complete spectrum of competition and consumer law, including complex anti-trust litigation, sensitive merger clearance, key regulatory advisory and enforcement action by the ACCC and other regulators. She also advises on communications regulation, consumer protection and compliance.

Kirsten, as Co-Head of International, is responsible for our international firm relationships.

Notable Work
  • Dye & Durham: secured ACCC merger clearance with remedies of this Canadian software and technology company's proposed takeover of ASX listed Link Administration Holdings Limited.
  • Nuance: acted as local competition counsel, secured ACCC merger clearance of this transcription software company's US$19.7 billion sale to Microsoft.
  • Slack: acted as local competition counsel, secured ACCC merger clearance of its US$27.9 billion sale to Salesforce.
  • London Stock Exchange Group: acted as local competition counsel, secured ACCC clearance of its acquisition of Refinitiv Parent Limited for a total enterprise value of approximately USD$27 billion.
  • Newcastle Permanent Building Society: advised on competition aspects of its merger with Greater Bank Limited, creating the new merged entity Newcastle Greater Mutual Group Ltd with $20 billion in assets.
  • Swift Networks: acting in ACCC cartel proceedings relating to the supply of technology infrastructure.
  • MSD Australia: led Clayton Utz team acting in misuse of market power litigation against BMS
  • nbn: advisor for over 10 years including ACCC review of nbn's foundation definitive arrangements with Telstra, ACCC authorisation and clearance relating to the Optus Hybrid fibre-coaxial network; acquisition of the services arm of ASX-listed satellite company Speedcast International; enforceable undertakings.
  • Woolworths: advisor for over 20 years on ACCC merger clearance (eg acquisition of Shopper Media, acquisition of a 65% stake in PFD Food Services), enforceable undertakings (eg fuel discounts and lease provisions) Federal Court proceedings (eg ACCC v Colgate & Ors; ACCC v Informed Sources & Ors; ACCC v Woolworths).
  • Singtel Optus: advisor for over 10 years on ACCC enforcement proceedings; successful misleading mobile advertising proceedings against Telstra; enforceable undertakings.
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