GMIT has a strong academic reputation; has supportive and friendly staff; offers excellent student supports and has internationally accredited courses. GMIT’s Galway City Campus is the largest of GMIT's five campuses and is the administrative headquarters. The Institute is an innovator in modern technology, and also serves the practical purpose of housing the Library and IT Centre. Other campuses are based in Centre for the Creative Arts and Media in Galway city, in Mountbellew (Agri-business), Castlebar (Co. Mayo) and Letterfrack. 

GMIT Letterfrack campus, the National Centre for Excellence in Furniture Design and Technology, is based on the Atlantic coast and in the spectacular mountainous region of Connemara and has approximately 250 students. It has been synonymous with the study of furniture design since 1987 and offers honours degree (Level 8) courses in Furniture design and manufacture and wood technology. The campus has a full suite of machinery used in furniture manufacture including wood processing machines, CNC technology, CAD/CAM systems, finishing systems, laser technology and digital manufacturing. Laboratories and workrooms are designed as highly efficient environments with two fully equipped computer laboratories and excellent internet connectivity throughout the campus.

GMIT Letterfrack has links to major furniture design and manufacturing companies around the globe. A comprehensive work placement programme allows students to avail of opportunities to work with leaders in furniture manufacturing during their studies. GMIT Letterfrack also has a number of links with colleges in Europe and the USA. The campus is an accredited Green Campus and proactively promotes principles of sustainability within its teaching and learning. GMIT Letterfrack graduates are recognised nationally and internationally for their technical skills and creativity, For the past 10 years, students from GMIT Letterfrack have won the Ireland skills in Cabinetmaking and won Medallions of Excellence at WorldSkills in Leipzip, São Paulo, Abu Dhabi and Kazan.

Recently the Letterfrack Department established a project entitled Education and Work-Integrated Learning (eWIL) which supports work-based learning for those wishing to develop skills in digital manufacturing, automation, project management and lean operations.