Colin Tomlinson is the founder of 150CLD and a Construction Leader Development Specialist, helping construction and infrastructure organisations develop leaders who can make better decisions, communicate clearly and deliver under pressure. He works with Tier 1 and Tier 2 contractors, project teams and site leaders to reduce rework and delay by improving planning quality, collaboration and execution on live projects. Colin is also the host of Site Story, a podcast exploring the human side of construction, and he delivered a headline talk at South East Construction Expo 2025 on leadership impact and behavioural change. He brings a 24-year military background in the Royal Engineers, translating mission command principles into practical, day-to-day tools such as outcome-led leadership, decision clarity and clean team interfaces. Colin shares field-tested insights with a LinkedIn audience of 4,000+ construction professionals.