LONDON (11th September 2025) – AlixPartners, the global consulting firm, today announced that it has appointed Ian Clemmence, a highly respected expert witness, as a Partner & Managing Director in the Investigations, Disputes & Advisory Services team. Ian, who formerly led the UK Forensic Disputes practice at PwC, will be based in the firm’s London office.
Bringing twenty-five years of experience in disputes, audit, investigation and statistical analysis work, Ian has a track record of testifying in investor-state and commercial arbitration, as well as in High Court litigation. Ian, who has been involved in over 175 cases throughout his career and has provided oral testimony on numerous occasions, also has experience of mediations, managing global investigations, corruption reviews and audits under UK GAAP, IFRS and US GAAP.
At AlixPartners, Ian’s role will have a global remit and he will work closely with external partners at law firms to provide expert witness testimony in major international and cross-jurisdictional disputes.
Andrew Grantham, Partner & Managing Director, Investigations, Disputes & Advisory Services at AlixPartners, commented:
“We’re thrilled to welcome Ian to AlixPartners. He brings substantial experience in high-profile corporate disputes, which will complement and further strengthen the capabilities within our thriving Investigations & Disputes team. Our clients will benefit from an enriched suite of expertise across investigations, valuations, and disputes, as we support them through the complex and evolving challenges of today’s business environment.”