AIM is a non-profit, membership based, national organisation that was founded in 1977 by the directors of independent museums. The establishment of this association originated from the realisation that there was a need to represent and support the interest of the growing Independent museum sector as well as 'in response to the growing number of community-based projects seeking to preserve locally and nationally important heritage'. This need to form an association had also developed since independent institutions were thought to be making an impact in the wider museum field and often covered topics that were overlooked by existing museums. AIM endeavoured to assist and connect member museums by lobbying on their behalf for various independent museum related policy matters and by providing advice, guidance and funding opportunities. The grant schemes were put in place to assist AIM members with a variety of different needs involving education/training, development and conservation. AIM publications served as a tool for guidance and provided information on various issues concerning independent museums whilst their conferences/seminars functioned as a platform to network and share expertise.
The AIM archive collection consists primarily of materials relating to the establishment and administration of AIM between 1977 and the 2000s. It includes correspondence; agendas and minutes; membership records and fiscal returns; financial documents; AIM bulletins and other publications as well as photographs.