BIE has a wide range of membership categories; for the highly qualified professional, to those who qualify by experience, graduates and students. At present the following categories of membership exist:-

Fellows
Every candidate for election or transfer to the class of Fellow shall be a person who at the time of application has been engaged in and made distinguished contribution to the science and practice of engineering and who in the opinion of the Council, has by personal attainments acquired an outstanding reputation as an engineer and whose admission as a Fellow will be in the interest of the Institution.

Members
Every candidate for election or transfer to the class of Member shall be a person who at the time of application is engaged in a position of responsibility in the science and practice of engineering and who in the science and practice of engineering and who in the opinion of the Council, has by personal attainments acquired an established reputation as an engineer and whose admission as a Member will be in the interest of the Institution.

Honorary Fellows
Every candidate for election to the class of Honorary Fellow shall be a person who satisfies the Council that he/she has rendered important service to engineering science or practice that admission of the candidate as a Honorary Fellow would, in the opinion of the council be in the interest of the Institution.

Companions
Every candidate for election to the class of Companion shall be an established member of another profession who is associated with the methods, procedures or practices of engineering activities, and whose admission would be conducive to the general advancement of engineering and its applications.

Graduates
Every candidate for election to the class of Graduate shall be a person who holds a degree from a university, college or school of engineering approved by the Council.

Affiliates
Every candidate for election or transfer to the class of Affiliate shall be a person who is an affiliate or be of such other class of membership as the Council may from time determine of a recognized Engineering Institution approved for the purpose by the Council on a reciprocal basis.

 
Technicians
Every candidate for election to the class of Technician shall be a person who holds a diploma of a school of engineering or accredited equivalents approved for this purpose by the Council.

Students
Every candidate for election to the class of Student shall be registered in a school of engineering or shall satisfy the Council that the candidate is being educated and/or receiving training in engineering sciences.
These grades of membership may be extended to individuals or group of persons, companies or institutions.

Applicants for any category of membership may be required to provide proof of either academic qualifications or professional experience.