Greg Harman

Greg Harman

Senior Managing Director

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With over 24 years’ professional experience, Greg advises in valuation, dispute consulting, pricing, competition and economic regulation.

He has significant experience working on cases in telecommunications, media and energy. He has given oral evidence on more than 15 occasions.

Types of cases on which Greg has worked include:

  • Quantification of complex damages and loss of profit claims that require economic, financial and accounting expertise
  • Economic and financial analysis of competition law claims, including predation and excessive pricing claims and cartel and competition damages follow-on claims
  • Shareholder value-based disputes

Professional standing

Greg is a fellow of the ICAEW and holds an MSc in Competition and Regulatory Economics.


200 Aldersgate
Aldersgate Street
London, EC1A 4HD
United Kingdom

T: +44 20 3727 1000
F: +44 20 3727 1007

Greg is without a doubt the best expert witness I have had the privilege of working with in my 23 years of practice. His ability to clearly and firmly articulate and defend the views he expressed in his expert report, while still appreciating when it was necessary to demonstrate some flexibility, is what makes him a truly credible and stand out witness

Partner, Law Firm


Case Study – Excessive Pricing: Sasol

When our client was found to have priced excessively, we used our extensive experience in quantitative economics to help successfully overturn this ruling.

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Case Study – Competition Damages: Oil & Gas

When our client was found guilty of charging excessive prices, we used our extensive experience in quantitative economics to help overturn the verdict.

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Case Study – Competition Damages: SAA

Our analysis of damages was used to support our client’s claim for lost profits arising from a breach of competition law.

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