Frank Ilett is managing partner at Haberman Ilett LLP. He has specialised in forensic accounting since 1991, spending 22 years in Big Four firms (13 as partner) before joining Philip Haberman at Haberman Ilett LLP.

Frank has been actively involved in over 175 matters, including commercial disputes, shareholder disputes, investment treaty claims, transaction-related disputes, negligence claims and disputes arising out of accounting and financial irregularities. His experience spans most industry sectors.

Frank has a particular specialism assessing losses in large-scale ICT implementation disputes.  Having worked regularly on such disputes over the past 20 years he is very familiar with most of the legal, technical and financial issues that arise and how to account for them within his loss calculations.

He has given oral evidence numerous times in the English courts and before international arbitration tribunals, including the LCIA, ICC and the SAAA.

Frank is one of a small number of expert accountants to have been appointed as an expert assessor under the Arbitration Act 1996.

He is described by colleagues and clients as very easy to work with and an excellent communicator. He is very focused on producing high-quality work while also keeping his clients fully informed of progress.

Frank qualified as a chartered accountant in 1986 and has been a fellow of the Institute of Chartered Accountants in England and Wales since 1997. He is an approved determining expert on the ICAEW president’s appointments list, a member of the Expert Witness Institute and a CEDR-accredited mediator.

WWL says: Sources have "high praise" for firm co-founder Frank Ilett, noting his extensive experience as an expert witness in arbitration contexts.

Frank Ilett is managing partner at Haberman Ilett LLP. He has specialised in forensic accounting since 1991 and led the UK dispute services practice of a big four firm before launching Haberman Ilett in 2013.

Frank has been actively involved in over 175 matters including commercial disputes, shareholder disputes, investment treaty claims, transaction-related disputes, negligence claims and disputes arising out of accounting and financial irregularities. His experience spans most industry sectors.

He has given oral evidence numerous times in the English courts and before international arbitration tribunals, including four times in 2017 alone. Frank is one of a small number of expert accountants to have been appointed as an expert assessor under the Arbitration Act 1996. He is rated as one of the leading expert accountants in international arbitration by Who’s Who Legal.

Frank has a particular specialism in assessing losses and damages in large ICT implementation contract disputes including ICT outsourcing disputes. He has worked on many such cases since his first involvement in the Pegler v Wang case in which he provided expert accountancy evidence in 1999. He is also very experienced as a quantum expert in all aspects of sale and purchase agreement disputes.

Frank has been a fellow of the Institute of Chartered Accountants in England and Wales since 1997. He is an approved determining expert on the ICAEW President’s appointments list, a member of the Expert Witness Institute and a CEDR-accredited mediator. He is a regular speaker on quantum issues in IT disputes and regularly provides training for lawyers and accountants on completion accounts disputes and warranty claims.

WWL says: Frank Ilett impresses peers who consider him “an absolute must for inclusion” and praise his market-leading quantum expertise in financial-related disputes.