The BGS has a number of specialist groups covering a wide range of fields of interest including music, art, architecture, economics, literature, the environment.   New specialist groups can be formed if members show interest to participate and ad hoc groups are also created from time to time for special events.

On a voluntary basis members of various professions or disciplines can actively participate in these working groups where, in addition to cultivating their professional contacts they can propose and materialize events, activities or projects for the Society in relation to their sphere of speciality.