Greig Consulting brings Quality, Specialism and Integrity Greig Consulting is a specialist international consultancy providing professional services including: expert witness services, claims preparation and handling, programming and dispute resolution services to the construction industry and oil & gas industries. We have collective experience in over 15 countries around the globe on major projects including; nuclear and conventional power plants, oil and gas, airports, railways, tunnels and highways, high-rise towers, hotels, museums, marine works, ship building, amongst others. We can facilitate project objectives by identifying and minimising both commercial and schedule risks. In the event of disputes, we provide professional claims preparation and defence services with the ultimate objective of dispute resolution.