The report that follows is an analysis of the HRM perspective in view of a certain company; Tarmac. Tarmac, which is one of the largest names in the construction industry in UK, has a unique and extremely efficient model for excellence that puts high regard and utmost important to its HRM. Tarmac believes in Diversity; acceptance of employees from all backgrounds and personality traits and Inclusion, their appreciation and involvement in the company’s progress. Tarmac’s strategy of Diversity and Inclusion has helped it in achieving a great and sustainable competitive advantage against its counterparts. It has enabled itself by reflecting and translating these differences of the diverse workforce into the variety and diversity of clients that the company serves from all over the world. In a nutshell, the internal diversity better prepares the organizations to cope with and satisfy challenges raised by the external diversity. The report discusses theories such as Core competence, emotional intelligence and performance prism to elaborate on this concept of diversity and inclusion. The report also uses some references from various Journal articles and books, wherever the thoughts and concepts from other authors are presented. The overall report is the summary of the writer’s own judgment and analysis