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Affiliate Membership

Join as an Affiliate member by 31 July 2024 to get 18 months of membership for the price of 12 and unlock your member benefits.

There are no entry requirements to gain the Affiliate membership, you can submit your online application today and unlock your membership benefits, including free unlimited downloads on our Knowledge Portal, a monthly CIBSE Journal subscription and discounts on training and events. You can also join CIBSE’s Societies with your Affiliate membership. The Societies cover topics related to building services engineering disciplines and offer a programme of events each year in which you can participate to fulfil your CPD. 


Anyone can become an Affiliate member of CIBSE. Submit your Affiliate membership online application and you'll get instant access to all the CIBSE membership benefits.

If you have previously held Affiliate membership with us, please contact us to reinstate your membership.

Please note, that this grade of membership does not offer the use of any designatory letters.

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Key Membership Benefits

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Access to the CIBSE Knowledge Portal

View the latest guidance on building services engineering and unlimited free downloads from the Knowledge Portal.

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Subscription to the CIBSE Journal

Receive a monthly hard copy of the CIBSE Journal (UK-based members only). Stay up to date with the trends in the industry.

Membership Application

Invitations to exclusive CIBSE events

Meet the CIBSE community at technical, networking and social events, and access CPD opportunities. Join our networks, societies and groups for more.

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Personalised professional registration support

CIBSE is licenced to award professional registration with the Engineering Council. A range of applicant support services is available for members.

Any questions?

Explore our FAQs pages for more information about how to join CIBSE, the membership types, the application process for professional registration, or other enquiries you might have.

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