GBsqd was founded in London, 2012 as a quantum expert services firm. In 2026, GBsqd offers both quantum and delay expert services with offices in the UK, UAE, Australian and New Zealand. Our testifying experts provide expert testimony international arbitration, litigation, and ADR forums including expert determination, adjudication and mediation. We also provide dispute avoidance advice on ongoing projects. The matters our experts work on range from small construction projects through to mega-billion dollar projects. Our experts have industry experience in power, resources, infrastructure, oil & gas, offshore works, commercial and mixed-use developments. Having worked for and within both employer and contractor organisations, we have a rare impartiality and insight enabling us to accurately measure client expectation to ensure we achieve results that are both realistic and fair. We have the resources to work with our clients in any capacity, whether the task in hand is large or small; irrespective of geography, sector of the industry or complexity of the project.