BUILDING SUCCESS
From a shared vision, hard work and determination to a global business. Meet the driving force behind GagaMuller’s transformation from an innovative startup to an industry-leading project and cost management consultancy. Childhood friends Thomas “Gaga” Gillen and Paddy “Muller” Ryan combined their nicknames to form a brand that is now renowned across Europe’s most significant projects.
FOUNDER
CEO
LinkedInBold, disruptive, and relentlessly connected, Paddy is the driving force behind our expansion across Europe’s most complex mega-scale projects. With a magnetic presence and a vast industry network, he brings the opportunities and the vision to turn them into game-changing results.
We’re not just here to deliver projects, we’re here to reshape how the construction industry operates. Growth isn’t about scale for the sake of it; it’s about impact, connection, and bold thinking. I believe in empowering people, challenging convention, and creating momentum that turns complexity into clarity. This industry is ripe for disruption, and we’re leading that charge with purpose.
FOUNDER
CEO
LinkedInStructured, analytical, and unshakably precise, Thomas turns complexity into clarity. He combines deep operational rigour with strategic foresight to ensure every project scales with intention, not just momentum. His methodical leadership transforms vision into lasting value.
True transformation doesn’t happen through chaos, it happens through discipline, structure, and strategy. My focus is on building a company that can grow with strength and integrity, where people understand why they do what they do and how to do it better. We're not chasing short-term wins, we’re building a long-term legacy, rooted in precision and powered by people who care about excellence.
BUILDING SUCCESS