Email – [email protected]

Our Story

QSX is a boutique firm with a wide reach in the construction industry – across domain expertise and across borders.

Germinating from humble beginnings in the early 1980s and founded in 2022 at the culmination of our principal consultant Mark Grant’s stellar 40+ year career in construction project management and quantity surveying in South Africa, QSX has added to its strong domestic base by forging international links into the United Kingdom, Europe, and Asia.

QSX’s highly trained and experienced staff and network of consultants now provide a powerful combination of operational and financial expertise particular to the construction industry, which is boosted by a deep understanding of international law – particularly as it applies to all matters construction.

We offer our clients and their lawyers a truly unique one-stop advisory or expert witness service.

Contact Us At – [email protected] for more of our story

Professional Registrations and Memberships

Our forensic delay analysis and quantum determination staff are registered with the South African Council for the Quantity Surveying Profession (SACQSP) [https://www.sacqsp.org.za/] and the South African Council for Project and Construction Management Professions (SACPCMP) [https://sacpcmp.org.za/], and are members of the Association of South African Quantity Surveyors[https://www.asaqs.co.za/], the Association of Arbitrators (Southern Africa) [https://www.arbitrators.co.za/] and the international Dispute Resolution Board Foundation [https://www.drb.org/]


Gary Rademeyer – Director Norton Rose Inc (Durban, South Africa)

Recognised by Best Lawyers in Construction Law – 2023

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“I know and have worked with Mark Grant personally over the last 10 years, as he has been appointed as an expert witness in a number the arbitrations which I have been appointed as legal counsel.

The role of an expert witness in legal matters is of particular importance and requires the expert to be articulate, persuasive and have the necessary expertise to explain technical concepts in a manner which is understandable to the arbitral tribunal. Grant has continuously displayed these qualities.

Over the years, Grant has also obtained a commendable understanding of legal concepts, which has been most valuable when appointed as an expert witness, particularly in complex construction matters.”

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Adine Abro – Director of Adine Abro Attorneys

Recognised by Best Lawyers in Construction Law – 2023

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‘’Of many respected quantity surveying experts I have worked with, Mark is distinguished for many reasons. He goes above and beyond for the sake of the matter, underpinned by his praiseworthy level of detail and in-depth understanding and appreciation of the intricacies of expert reports required in construction disputes. Mark is as passionate about his work as he is about life, and I consider it my pleasure and privilege to have worked together with him.’’

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Excellence in Expertise

Guided by Mark Grant's 40+ years of mastery, QSX ensures top-tier advisory services globally.

Integrity Beyond Borders

At QSX, we uphold the highest ethical standards, navigating international complexities with integrity.

Collaborative Global Solutions

With a network spanning Europe and Asia, QSX collaborates seamlessly, offering innovative solutions.