Uncover the key players, trends and opportunities shaping the future of building services.

BESA, in collaboration with GHCS and GH Engage and supported by Barbour ABI, brings you the definitive ranking of the UK’s top-performing mechanical and electrical (M&E) contractors.

What you’ll discover inside:

• The Top 30 UK M&E contractors ranked by turnover

• A detailed analysis of £6.4bn in combined revenues and 23% year-on-year growth

• Expert insight into the resilience and reinvention of the sector despite economic headwinds

• Real-world examples of contractors stepping up as principal players

• Industry-leading commentary on the impact of the Building Safety Act, skills shortages, and AI-driven infrastructure

Whether you’re a contractor, consultant, developer, or client—this report gives you the insight to make smarter and faster decisions.