Group 75 was formed in 1975 by Margaret Tietze. There are now ten members. Four live in the Wrexham area, three in S. Wales, one in Taunton, Somerset, one in Inverness, and another in Brecon. Group 75 has exhibited annually from 1975 starting its tours in N.Wales. Venues have been as far afield in Britain as Inverness, Somerset and London, and abroad, in Philadelphia and Bethlehem, Pennsylvania, USA, and Cape Town and Stellenbosch, South Africa. The group has a policy of inviting guest contributors. In 1995, following an earlier exchange with an American group of artists, the Group 75 tour included works by three American artists. One of these, Gabrielle Russomagno, a young photographer from Philadelphia, has maintained links with the group since then and exhibited in Group 75 shows. The women members of the group exhibited in 1998/9 in an exhibition that was titled Homeland: A personal response to place and time. Three artists from South Africa were guest contributors to this exhibition.

Vuyile Voyiya, guest artist from South Africa, at work in his studio in Cape Town
The programme for 1999/2000 symbolized the spirit of the millennium by the inclusion of work by four new graduates. The title of the exhibition was Ten plus Four.The guest artists were selected on the strength of their work in their degree shows. The 2000-2003 programme called Spirit of the Place (Genius Loci) combined the group members with four South African artists selected to exhibit with Group 75 in this international tour. The South Africans were chosen by the Association of the Visual Arts in Cape Town.

Open Prospect, a mixed media exhibition, toured Wales through 2005 and 2006. The collaboration between Wales and South Africa continued with Thembinkosi Goniwe and Nkoali Nawa as guest contributors, both visiting Wales to give residencies.

Double Vision was a tour in 2008 which included the work of Vuyile Voyiya, invited artist/printer from Cape Town, South Africa and that of printer Steffan Jones Hughes, Director of the Print Centre, Wrexham.

Group 75 disbanded in 2011.