Learn. Belong. Grow. Progress.
The built environment is evolving faster than ever. The professionals who thrive are the ones who continue learning, build meaningful professional relationships and invest in their own development.
Anyone with an interest in the built environment can become a CIBSE Affiliate Member. Whether you're starting your career, working in a related profession, changing disciplines or simply looking to deepen your understanding of the industry, Affiliate membership is open to you.
There are no academic or professional eligibility requirements to join, just a commitment to your professional development.
Invest in your future with CIBSE Affiliate membership.
Join before 31 July and receive 18 months of Affiliate membership for the price of 12.
Hear from our members
"I've been a CIBSE member since the start of my career, and it remains central to my professional identity. Through trusted guidance, peer networks and shared knowledge, CIBSE supports my development, enables innovation, and helps me stay connected and effective as our industry continues to evolve."
Sarah Peterson
Affiliate Member
Why become an Affiliate Member?
Affiliate membership is more than access to member benefits; it's an investment in your future.
As part of CIBSE, you'll join one of the world's leading professional institutions for the built environment, helping you stay informed, strengthen your professional credibility and become part of a community committed to raising standards across the industry.
Tailor your membership to your interests
Your professional development is unique - and your membership can be too.
As part of your Affiliate Membership, you can choose to join one or more CIBSE Societies, connecting you with professionals who share your specialist interests and career aspirations.
Whether you're interested in digital engineering, façade engineering, lighting, intelligent buildings, or other specialist disciplines, Societies give you the opportunity to:
· Learn from recognised experts through specialist technical guidance, events and resources.
· Build valuable professional relationships with people working in your area of interest.
· Exchange ideas and share knowledge with professionals tackling similar challenges.
· Stay informed about emerging trends and innovations shaping your specialist field.
· Become part of a community driving professional excellence within your discipline.
Some Societies are free to join, while others require an annual subscription in addition to your CIBSE membership fee.
Explore CIBSE Societies and find the communities that match your interests.
Why join as an Affiliate?
Gain industry insights, build connections, and advance your career.
Learn more