Amy Mahon

Based in London, Amy Mahon is Co-Head of the Firm’s Energy and Infrastructure Practice and advises a range of clients through all stages of the investment cycle within the energy and infrastructure sector. She counsels infrastructure funds and corporate clients on complex domestic and cross-border mergers and acquisitions, joint venture and consortium transactions, and restructurings across the infrastructure sector. 

• Global Infrastructure Partners on its US$1.8 billion strategic investment in certain TotalEnergies oil and gas infrastructure assets in Africa
• GLIL Infrastructure on its acquisition of a majority interest in a UK data centre campus from Yondr Group
• I Squared Capital on the sale of a 25% interest in TIP Group, one of Europe's leading transportation equipment leasing and services platforms
• EQT Infrastructure V on the €510 million sale of a minority stake in Nordic Ferry Infrastructure
• Stonepeak on its US$10 billion acquisition of a majority controlling interest in Castrol, a global leader in lubricants, from BP p.l.c.
• KKR on the sale of a substantial minority stake in Viridor Group
• EQT on its acquisition of Arlanda Express, a high-speed rail service in Sweden operated by A-Train AB
• I Squared Capital on the €2.5 billion sale of Energia Group, one of the largest energy utilities on the island of Ireland, to Ardian
• Arjun Infrastructure Partners on its €2.2 billion acquisition of a 30% stake in Data4's stabilised data centre assets
• Smart Metering Systems on its combination with Horizon Energy Infrastructure and Smart Meter Assets
• Stonepeak on its €2.1 billion recapitalisation of euNetworks, a Western European bandwidth infrastructure company
• KKR on its £1.4 billion acquisition of Smart Metering Systems
• Global Infrastructure Partners on its acquisition of a 49% stake in ADNOC Gas Pipelines, valued at US$20.7 billion, and the subsequent sale of GIP's stake to ADQ
• Viridor on the sale of a minority investment in Viridor Energy (Investments) Limited to Equitix and the sale of a minority investment in Viridor Energy (Investments) Limited to TCorp IM Unlisted Infrastructure Fund
• KKR on its €1.2 billion takeover of Greenvolt and its prior investment in €200 million convertible bonds issued by Greenvolt
• TPIH Iberia S.L.U. on the sale of its 49% stake in COSCO SHIPPING Ports (Spain) Holding, S.L. to CMA CGM Group
• KKR on the sale of X-Elio, a leading global renewable power company, to Brookfield
• Viridor on its recommended offer to acquire all of the outstanding shares in Quantafuel ASA
• John Laing on its acquisition of a portfolio of assets comprising Towercom, Valley Healthcare and CCD from the Irish Infrastructure Fund
• Consortium comprising KKR, Macquarie and other investors on its attempted £15 billion acquisition of UK Power Networks from CK Infrastructure, which aborted
• Stonepeak on its €1.0 billion minority equity investment in Inspired Education
• EQT on its acquisition of InstaVolt

Amy is recognised as Band 1 by Chambers UK for Infrastructure and as a Hall of Fame lawyer by Legal 500 for Infrastructure M&A. She is also recognised as a leading practitioner by Chambers UK for Private Equity. Clients describe her as “a highly respected lawyer who has done it all in the infrastructure space.” She was named to Private Equity News’ list of the “Twenty Most Influential Private Equity Lawyers” for both 2025 and 2026. 

Amy received her Diploma in Legal Practice from the College of Law of England and Wales in 1998 and her LL.B. from Trinity College Dublin in 1997.