Client List

Expert Witness Client List in Oil and Gas, Petrochemicals, Pharmaceuticals, Power Generation, Manufacturing and Food.

The Manderstam International Group has that vital exposure to the preparation and presentation of scientific and engineering evidence to the High Court and the International Court of Arbitration.

Our experts have prepared expert reports and advised strategy and given evidence in extremely complex cases on behalf of multinational oil and resource companies. See representative recent examples listed below. In the last 20 years, we have been instructed by most of the leading international & domestic law firms in over 85 cases and given oral evidence in 34 of these.

All our experts are trained in giving legal evidence by Bond Solon and Manderstam is registered with the Expert Witness Institute (EWI), the UK Register of Expert Witnesses and the Federation of Forensic Witnesses.


Process and Mechanical Equipment Design in the oil and gas, petroleum refining and power industries with specific experience of cryogenic process plant and piping design and insulation including LNG, LPG, NGL, ammonia production and hydrocarbons gas / liquid separation and fractionation.

Project Management, with extensive experience both as an owner’s representative and as a contractor, in preparing and executing basic design, detailed design, procurement and construction to ISO 9001 Quality Assurance and international model forms of contract (FIDIC orange book and similar) of oil and gas production / processing facilities and pipelines, petrochemical and power generation plants.

Manufacturing Design, Engineering and Quality Control in the manufacturing industries with specific experience of welding, forming and machining alloy steels and stainless steels; Quality Control and Assurance requirements to ISO 9001/2 and assessment of product design and manufacture in respect to assessment of fitness for purpose. Undertakes production plant and machinery valuations.

Instructing Solicitors In Alphabetical Order:-

A&L Goodbody, Belfast
Aglionby ADR, London
Arnold, Davies, Cooper, London
Baker Botts LLP, New York and London
Berrymans Lace Mawer, London
Bar & Karrer AG, Zurich
Berwin Leighton Paisner, London
Bird and Bird, London
Blatchfords, London
BP Collins, London
Bray & Bray Solicitors, Leicester
Capital Law, Cardiff
Charles Russell Speechlys LLP, London
Clausen Miller LLP
Clifford Chance, Paris
Clyde & Co, London
CMS Cameron McKenna, London & Glasgow
Cobbetts, Birmingham
DAC Beachcroft, London & Newcastle upon Tyne
David Phillips & Partners, Essex
Davies Arnold Cooper, London
Davies Lavery, London.
Deacons, Hong Kong
Decimus Fearon LLP, London
Dentons, London
Dickinson Dees, Newcastle
DLA, Birmingham
DWF, Manchester
Eversheds, London
Freeth Cartwright, Manchester
Freehill Hogan & Mahar LLP, New York
Freshfields Bruckhaus Deringer, London & Paris
Fried, Frank, Harris, Shriver & Jacobson, Washington
Gide Loyrette Nouel, Paris

Instructing insurers:-

G A B Robins

Direct instructions received from:-

ICC, Paris
– Independent expert advice to an ICC Tribunal
Serious Fraud Office UK
Lurgi AG, Frankfurt, Germany
NEM BV, Netherlands
Komori UK Ltd
Air Products, UK
Clyde Bergemann Drycon GmbH, Germany
Ferrostaal, Essen, Germany
Galliford Try, Hinckley, Leicestershire, UK
Hill International, London
RWE, Germany
Siemens Industrial Turbo Machinery, UK
GW Pharmaceuticals
Motherwell Bridge Ltd
CB&I John Brown
Rominserv SRL, Romania
Tata Chemicals Europe Ltd
Tecnimont S.P.A., Milan, Italy
Wet and Forget Ltd
HFL Manchester

Gowling WLG (UK) LLP, Birmingham
Greenwoods, London
Gross and Co, Bury St Edmunds
Halliwells, London & Manchester
Haynes Boone LLP, London
Hill Dickinson, Liverpool
Holman Fenwick Willan, London & Qatar
Howard Kennedy, London
Hutchinson IP Ltd, Southport, UK
Kennedys, London, Bath & Birmingham
Kinstellar, Kyiv, Ukraine
Lalive, Geneva
Mayer Brown International, London
McFarlanes, London
McKenna & Co, London
McNulty & Co, Basingstoke
Mills and Reeve, Birmingham and Norwich
Norton Rose Fulbright, London
Osborne Clarke LLP, Bristol
Pinsent Masons, Glasgow, Manchester & London
Rawlinson Butler, Crawley
Reid Minty, London
Reynolds Porter Chamberlain LLP (RPC), London
Sandersons, Hull
Shadbolt & Co, Reigate
Shearman & Sterling LLP, Paris
Shoosmiths, Reading
Simmons and Simmons, London & Dubai, UAE
Smyth and Co, Hong Kong
Stewarts Law, London
Watson, Farley & Williams, Bangkok
Weightmans LLP, Newcastle, UK
Wilmer, Cutler, Pickering & Dorr, London
White & Case, London
Womble Bond Dickinson (UK) LLP, Newcastle,UK

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