Jonathan Brown is a Director with Secretariat, specializing in quantum expert services on all aspects of quantity surveying, valuation of prolongation costs, disruption and loss of productivity, and termination costs. He brings more than 28 years’ cost estimating, contract management and dispute resolution experience in the delivery of improved project outcomes for clients in all sectors. This experience spans mining, infrastructure, oil & gas, and utilities projects in Australia, the United Kingdom, and the Middle East.
Jonathan is regularly appointed as a quantum expert on matters in mediation, adjudication, arbitration, and litigation. He has provided oral testimony (including provision of evidence concurrently) and been cross examined in the Supreme Court of Western Australia and in arbitration proceedings. He has also presented evidence in mediations.
Jonathan has significant experience in first principles estimating, for estimates of all classes prior to tender, and for variation and claim assessment during and following construction. He has developed and audited CAPEX estimates for mining process plants and associated infrastructure in Australia and overseas. His experience in contract management and claims preparation including strategic claims advice and negotiation strategies has assisted major contractors and asset owners achieve positive outcomes.
Jonathan is recognized by Who’s Who Legal and lauded for his “practical, but thorough approach to matters” and is widely regarded as “a very strong construction expert.”