Research methodology The data set used to write this case was collected from 83 public sources, including company communications, company journals and reports and the company website, along with newspaper articles, industry reports, scientific articles and case studies. The data set was used to analyse both the industry and firm in which Arup operated to draw conclusions about the firm’s strategy and competitive advantage, specifically, as it relates to trust and knowledge management. Case overview/synopsis Alan Belfield, an employee of Arup Group Limited for 29 years, and the company’s chairman since 2019, had witnessed significant growth since he first joined the firm. Operating globally, Arup had a proud past; since 1946, the company had served 6,931 clients across 143 countries, leading to its important contribution to many world-renowned landmarks within the built environment. From 2018 to 2020, revenue at the global multiservice engineering company had grown almost £250m [1] to £1.809bn. Over the past few years and as 2021 came to an end, the global engineering services industry had experienced a flood of mergers and acquisitions, as the industry grew towards maturity and clients looked for full-service solutions. Arup’s strategy had proven successful in the past, evidenced by its capacity to grow revenues and partake in the design of well-known structures and buildings. However, with the trend towards consolidation, as Arup headed into 2022, how could the firm retain its position as one of the global leaders in the industry over time? Complexity academic level The case can be used in business courses on global strategic management at the bachelor and master levels, as it applies key strategic management concepts within a global context. The case focuses primarily on the transnational corporation (Bartlett and Ghoshal, 2002) and how it creates value through strategy and structure. Instructors who wish to integrate the human resource management aspect into the course are provided with optional material, including an additional reading, along with an assignment question and associated analysis and teaching guidance.