Meet the Expert Witness Team

David Blake Dip Arb, FRICS, FCIArb

  • 4 International Arbitrations

  • Over 30 Expert Witness appointments

  • Over 15 Major Dispute Resolution appointments as lead consultant

  • Over 200 Adjudicator appointments by the RICS and the CIArb

  • Sole Arbitrator concerning a dispute on an offshore oil and gas project under UNCITRAL rules.

  • Legal, Experience Training Advanced Professional Award in Expert Witness Evidence (LETAPAEWE) accredited.

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David has acted as a Quantum Expert on numerous of occasions in arbitration, court and ADR proceedings. David has also been appointed as Adjudicator in multiple disputes referred to him by the RICS and CIArb.

David is a highly experienced Consultant whose primary profession is as a Chartered Quantity Surveyor. David has detailed knowledge of the main forms of contract used in the United Kingdom including associated sub-contract agreements.

Along-side this David has experience in the management and provision of a wide range of pre and post-contract quantity surveying services on a diverse range of projects in the construction, civil engineering, heavy engineering, process engineering and energy sectors of the construction industry for both UK and international clients.

David White MSc, FRICS, FCIArb

  • Over 20 Expert Witness appointments within the UK

  • Over 100 Dispute Resolution appointments as lead consultant

  • Over 16 Adjudicator appointments by ICE and direct appointments


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ICE, CIArb and CIC Panels Adjudicator

Appointed Party and Single Joint Quantum Expert Witness and Expert Adviser.

Panel and Party appointed Adjudicator since 2002.

David is a Chartered Quantity Surveyor with over 30 years of experience within the Construction and Engineering sectors in the UK and abroad.

David’s experience is in commercial and contract consultancy and quantity surveying, specialising in dispute avoidance and resolution in the construction, engineering and process industries. He has been involved on projects with varied procurement methods, including traditional approaches, design and construct, management, project management and partnering.

David provides pre and post contract quantum and contract related advice on construction and engineering projects and quantum expertise in construction and engineering disputes in litigation, arbitration, adjudication and other forms of alternative dispute resolution.

David has been appointed as Expert Witness by claimant and defendant employers, contractors, sub-contractors and insurance companies across most sectors of the industry, including general building, construction and civil engineering works, waste management and engineering disputes in litigation, arbitration and adjudication and as part of teams assisting other experts.

Greg Brownlee BSc (Hons) LLB MRICS MCIArb

  • Over 10 Expert Witness appointments 

  • Over 75 Dispute Resolution appointments as lead consultant


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Greg has acted as both a Delay & Quantum Expert witness on numerous occasions in adjudication and litigation proceedings.

He is highly experienced in the formulation, assessment, negotiation and settlement of contractual claims ; identification of risk in specific contracts and development of appropriate administrative procedures to avoid disputes and minimise client liabilities. He has significant experience in the field of commercial management and dispute resolution on large engineering and IT projects, particularly in the provision of adjudication support services in support of both claimants and respondents.

His clients include national and international organisations, large IT outsourcing and telecommunications companies, public bodies, private construction and engineering companies and professional consultancies.