Last updateWed, 14 Oct 2020 12pm
Your Expert Witness


Parmentier Arthur Group Ltd

90 Long Acre
Silvaco Technology Centre
Compass Point
St Ives
PE27 5JL

Contact Person: Stephen Lygo BA FRICS MEWI
Phone: London: 020 7849 3018 / St Ives: 01480 309369
Occupation: Valuation of Unquoted Shares and Privately Owned Businesses

Litigation Support, Disputes and Mediation • Commercial Valuations • Valuations for UK Tax Purposes • Valuing Intellectual Property and Intangible Assets

The provision of expert witness testimony, either as a joint single expert or a named expert representing one party, requires a logical and independent approach as well as a sense of proportion regarding the cost-effectiveness of our work. We always consider the depth and scope of our reports in relation to the size and complexity of the case and the financial amounts at stake. We ensure our reports are clear, concise, relevant and fully-documented.

We are also mindful that our overriding duty as expert witness is to serve the Court. We take this obligation very seriously so that the expert witness reports we prepare for use in Court scrupulously are independent and objective.

Stephen Lygo BA FRICS MEWI

Stephen Lygo is Managing Director of Parmentier Arthur Group Limited, a leading independent business valuation consultancy which provides specialist valuation services in connection with matrimonial proceedings, shareholder disputes, fair value provisions and tax valuation matters. He joined Parmentier Arthur directly from HMRC’s Shares and Asset Valuation office where he was a member of the small special cases appeals team working on problem cases.

Stephen is a fellow of the Royal Institute of Chartered Surveyors’ business valuation division and has considerable experience in:

  • Acting as expert witness in commercial and family law proceedings he is a member of the Expert Witness Institute and listed in the Expert Witness Directory as an expert in business valuation.

  • Valuations in a commercial context, such as share sale or purchase and fair value determinations

  • Providing valuation advice for all tax-related purposes and employee incentive schemes

  • Negotiating share values with SAV