We are industry experts with extensive professional exposure to major international capital projects and programmes in leading engineering and professional services organisations.

Our Specialties:

  • Connecting strategy and operations
  • Connecting finance and delivery

Gildas André - Founder and Manging Principal - GAN

Gildas André

Managing Partner


  • Gildas advises board members and departmental heads on planning and delivering major international capital investment programmes and managing issues arising from disputes in the construction, infrastructure, transport, property and energy sectors.
  • Gildas founded GAN Advisory Services in 2013. He has 15+ years of extensive international experience across central Europe, Africa, South America and the UK in all phases of major projects and programmes with leading construction and management consulting organisations (Kier Group / Buro Four) and in performance improvement advisory for Ernst & Young.
  • Gildas is a specialist in programme management and in establishing governance and controls effectively connecting strategy and operations; finance and delivery. He is also a planning and programming expert in strategic phasing, integration and production management and in preparing and defending claims for delay and disruption.
Trevor Drury - Associate - GAN

Trevor Drury


MBA, PG Dip Bar, PG Dip Law, PG Dip Project Management, FRICS, FCIOB, MCIArb

  • Trevor is a Chartered Quantity Surveyor, Project Manager, Expert Witness and Legal Adviser with over 30 years construction industry experience having worked for contractors and consultancies. He is also a member of the Society of Construction Law, Adjudication Society and Association of Independent Construction Adjudicators.
  • Trevor specialises in providing project solutions by advising on procurement, commercial management, legal and commercial risks, dispute avoidance, construction contract, claims and dispute resolution. He has been appointed as a quantum and project management expert witness, represents clients in adjudications and is an accredited mediator. Trevor has been appointed expert witness by a number of international law firms and energy companies and has advised and acted on behalf of a number of large public bodies, corporate clients and contractors.