CIBSE’s 2025 Annual Report is now available. The Report details CIBSE’s work and achievements in what was another exceptional year for CIBSE, with membership numbers and revenues reaching record levels.
This continued growth enables CIBSE to reinvest more in world-class knowledge, authoritative guidance and enhanced member support, ensuring we meet the full breadth of our members’ needs.
Across the Regions, more events were delivered than ever before, reflecting an increased focus on supporting members worldwide. By consciously investing time and attention across the globe, the Institution has strengthened networks and built deeper relationships, reinforcing CIBSE’s identity as a truly global organisation.
Find out more about CIBSE’s work, and the work of the Groups, Societies and Regions, in the 2025 Annual report: www.cibse.org/annualreport