Stuart is an Associate Partner at gb² with over 25 years of experience in the construction industry working as a Commercial Manager and Quantity Surveyor. He has primarily worked for contractors but now specialises in forensic examination of the quantum of construction projects and assisting experts in the preparation of quantum reports.

His experience includes building, civils, transport, process engineering, and nuclear facilities. Stuart’s range of experience has given him a keen awareness of the commercial aspects relating to the delivery of construction projects, programme, procurement, variation/change control, value engineering, and cost reporting. Stuart has been named as assistant to expert in numerous Arbitrations.

Trent is an Associate Partner at gb² with over 35 years’ experience in project disputes, claims management, quantity surveying, project management, and international arbitrations. Trent has worked directly for clients, consultants, contractors and subcontractors and at on-site locations across Europe, Asia and the Caribbean. Having worked on positions including extensive involvement on large multi-faceted installations, including power stations, offshore marine windfarms, the tallest buildings in the world, motorways, train network depots, and food, gas and pharmaceutical plants, have allowed Trent to develop a specialist understanding of time and quantum behind complex and high risk civil, mechanical and electrical productions and projects.

In the past, Trent has been appointed as quantum expert on a gas district cooling centre project dispute. He has also been a witness of fact including providing oral testimony and being cross-examined in international arbitrations. Has undertaken forensic investigations into price and cost-based claims and he has assisted in the preparation and writing of expert witness reports for quantum on international litigations, arbitrations and adjudications.

Michelle is a chartered surveyor with over 23 years’ experience across infrastructure and real estate. She has worked for contractors and in private practice.  Michelle has worked at both the pre and post contract stages of projects, providing quantity surveying and cost management services. She has experience on a number of different forms of contract including JCT, NEC, ICE and various bespoke contracts together with the cost management from inception to completion.

Mark Pieri an Associate Partner of gb², he is a Chartered Quantity Surveyor with over 18 years’ experience in the Construction Industry.  Mark’s industry experience has been with a top-tier UK main contractor where he was employed from a Trainee to Senior QS level. Mark has a well-rounded experience of the industry, spanning different stages of construction from pre-contract through to project delivery and post completion.  This experience is spread across a variety of different industry sectors (including Education, Healthcare, Retail and Infrastructure) on both large and small value building Contracts.

Mark has experience of working with various forms of contract and methods of procurement including the JCT suite of Contracts, NEC2 and NEC3, PFI, design and build, traditional bills of quantities and bespoke forms of contract. This range of experience has given him a keen awareness of the commercial aspects relating to the tender and delivery of construction projects, tendering, programme, procurement, variation/change control, value engineering and cost reporting.  Mark has assisted Lead Experts in forensic analysis and assessment of different types of heads of claim in legal arbitration cases, including delay and disruption claims, variation claims and re-measurement exercises.