Dr. Osamudiamen Kenneth Otasowie is a professional in construction management and quantity surveying as well as an academic and currently serving as a post-doctoral research fellow at the University of Johannesburg. His education includes a Ph.D. in construction management from the University of Johannesburg, an [...], in quantity surveying from the Federal University of Technology Akure, and a [...]. in quantity surveying from Nnamdi Azikiwe University, Nigeria. Dr. Otasowie has contributed to over 50 peer-reviewed journal articles and conference papers, with research interests in the circular economy, business models, and sustainable construction practices. His professional experience encompasses roles as a lecturer, researcher, and quantity surveyor. Dr. Otasowie’s expertise in circular economy business models positions him as an ideal author for book circular economy business model.

Professor Clinton Aigbavboa, a distinguished scholar with over 18 years of experience in the built environment and construction sectors, is a professor of Sustainable Construction Digitalisation and Construction Industry Research at the University of Johannesburg. He holds a Ph.D. in engineering management, a masters in construction management, and certifications in good governance and artificial intelligence from MIT. He has authored 27 research books, co-authored 6 edited books, and published over 1000 accredited journal articles and conference papers. His research interests include Construction 4.0, smart cities, sustainable human development, and digitalisation in construction. Prof. Aigbavboa's extensive expertise, leadership roles, and prolific publication record make him ideally suited to author Circular Economy Business Model: A Framework for Transforming Construction Organisations, ensuring a comprehensive investigation of the circular economy’s transformative potential in the business models of construction organisations.

Prof. Emmanuel Ayodeji Oke is an associate professor at the Department of Quantity Surveying, Federal University of Technology Akure, Nigeria. He won the Best Researcher award during the 2023 Excellence and Productivity Award ceremony at the Federal University of Technology Akure, achieving the runner-up of the same award in 2022. Prof. Oke is an author and a lecturer with several years of teaching and research involvement in higher learning institutions worldwide. He founded the Research Group on Sustainable Infrastructure Management Plus (RG-SIM+) at the Federal University of Technology, Akure, and he is currently the team leader. Prof. Oke's research interest is in sustainable infrastructure management (SIM), emphasising sustainable construction, value management, quantity surveying and construction in the digital era. With more than 400 publications, including several research books, he is well suited to author The Circular Economy Business Model: A Framework for Transforming Construction Organisations.

Part 1: Background information.- Introducing circular economy in the construction industry.- Part 2: Circular economy business model in organisations.- The principles of circular economy.- Theoretical perspectives on circular economy in organisations and policies.- The theoretical frameworks of the Circular Economy Business Model (CEBM).- Gaps in circular economy business model theoretical frameworks.- Conceptualised circular economy business model adoption framework for construction organisations.- Part 3: Case study.- Conceptual framework validation: A Delphi approach.- Results of the Delphi study.- Conclusion.