Tier 1 Building Contractors UK: The 2026 Guide to the Tiers, the List and the Supply Chain
Who Are the Tier 1 Building Contractors in the UK? Tier 1 building contractors are the UK’s largest main contractors — the firms appointed directly by a client to lead and deliver major construction projects, typically with turnovers in the hundreds of millions or billions. They win the biggest public and private schemes, then distribute […]