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John Gerszt


John Gerszt

'A leading light' is how the market describes John.And no wonder, as clients praise his 'impressive experience and authority', 'good industry knowledge and risk assessment capabilities' and ability 'to stand back and cut through the extraneous stuff'. He is that rare breed of lawyer who combines a 'good strategic brain' with 'pragmatic and user-friendly' advice.John has spent more than 30 years resolving construction and engineering disputes in the power, energy, rail, airport and process plant sectors. As a 'very hard-working intellectual heavyweight', clients know he can give a view in real time and feel comfortable calling him when projects start to go wrong, even if English law doesn't govern the contract.

He has pioneered early case assessments, helping clients either avoid disputes or ensure they are well prepared if they escalate.John handles court cases, arbitrations, mediations, expert determinations and adjudications. Much of this work involves technical matters and he has a large network of relationships with leading delay and disruption, project management and equipment experts.John regularly works on projects in the UK, Africa, the Middle East and the Asia-Pacific region. He contributes to the handbook on Commercial Arbitration and is qualified in England, Wales, Australia and admitted to practise in Hong Kong.

'He's a very imaginative lawyer - he thinks of different ways of attacking a legal problem to help the client.'

Chambers UK 2016

Representative Experience

Reaching settlement for an oil and gas major after an early case assessment of the strength of defective equipment claims at a large refinery.

Settling for a major industrial after an early case assessment of the strength of delay, disruption and variation claims at a water treatment plant.

Working with an international contractor for over eight years providing real-time advice on one of the world's largest single infrastructure projects.

Resolving via settlement a series of delay and disruption disputes on three substantial European power projects.

Settling an international arbitration concerning the construction of a major trunk road in central Africa.

Settling an international arbitration about delay and ground conditions at a European oil-fired power plant involving Japanese, Spanish and U.S. firms.

Settling court proceedings for the supplier of specialist equipment in the offshore exploration industry in a highly technical multiparty dispute.

Settling for facilities maintenance providers at 12 major UK hospitals in alleged loss claims following termination of 30-year concession arrangements.

Resolving, after a three-day mediation, High Court proceedings regarding termination of a major concession agreement for a U.S. company.

Settling, after adjudication, delay and performance disputes for a rail contractor upgrading signalling, rails and stations on a major rail system.

Settling English High Court proceedings between participants in a joint venture responsible for a turnkey coal-fired power in Africa.

Settling High Court proceedings concerning the operation of a waste-to-energy power plant, including advising on U.S. design consultants.

Settling successfully for an oil major in relation to the EPC contract for an oil storage facility being built in West Africa.

Settling successfully in relation to the construction of a pipeline.

Successfully conducting the first reported case on the NEC form of contract.

Conducting numerous mediations, adjudications and expert determinations in the construction and engineering sectors.

Handling commercial arbitrations on all aspects of the design and construction of UK cogeneration power plants and Asian gas processing facilities.

Acting in an LCIA arbitration relating to specialist mechanical and electrical plant installation at a 600MW UK cogeneration power plant.

Education and admissions


  • LL.M., University College London, 1983
  • LL.B., Monash University, 1981

Bar admissions and qualifications

  • England and Wales
  • Hong Kong
  • Victoria, Australia

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