Whether you're starting out, have been working in the field for many years, or are already Professionally Registered, our range of memberships means that there is a level to suit everyone.
CIBSE is licenced to award professional registration alongside membership. Registration demonstrates that you hold a level of competence and commitment that is recognised internationally.
Join as an Affiliate
Thinking about joining CIBSE? There’s never been a better time.
Become an Affiliate member by 31 July 2025 to receive 18 months of membership for the price of 12*. That’s six extra months, completely free.
*Please note that this offer is only open to new members who haven’t previously held CIBSE membership.
Find your membership
Unsure which membership is right for you?
Answer a few questions in our interactive Membership Finder. and we will recommend your most suitable grade.
Join CIBSE today
If you are a student, an apprentice, have recently graduated, or do not have specific qualifications, you can apply for one of these entry-level CIBSE memberships.
Join as an experienced Engineer
Corporate memberships are based on your level of competence and experience.
Licentiate (LCIBSE)
Technicians involved in applying creative aptitudes and skills within fields of technology.
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Associate (ACIBSE)
Those at management level, with the ability to act as an exponent of today's technology.
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Member (MCIBSE)
Those engaged in technical and commercial leadership, optimising technologies.
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Fellow (FCIBSE)
For professional engineers contributing to the industry in a senior role.
Find out moreDo you want to register 4+ employees?
The CIBSE Company Registration Package is an offering for companies who would like to register 4+ members of staff for CIBSE membership or Engineering Council Professional Registration at a time.
The package unlocks preferential membership fees for companies along with bespoke application deadlines to suit your organisation's requirements.
Find out more
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.
