Mr. Hyam is a Director at Secretariat International where he specialises in providing independent expert quantum advice on construction projects. He has over 40 years’ experience in the construction industry, including holding senior management positions within major contractors and consultancy organisations, bringing that broad experience to his appointments.

He has assisted in the preparation of quantum reports in relation to disputes as diverse as large infrastructure projects in the UAE and wider Middle East, a UK schools project, two major disputes relating to offshore wind farms and a large mixed-use development in the UAE. Most recently his work has included assisting in the preparation of reports in relation to a large infrastructure project in the Middle East.
Mr. Hyam has twice given evidence in an arbitration arising from extensive building defects and has been instructed as quantum expert in a number of matters relating to professional negligence.