The Centre of Technical and Research Studies of Gipuzkoa (CEIT-IK4) is a Technology Centre for applied research in industrial innovation, competitive improvement and contribution to the social and economic development of the surroundings. Its headquarters are located in Ibaeta and at the Miramon Technology Park in San Sebastian (Gipuzkoa).

The IK4-CIDETEC Technological Centre is an expert in generating and transferring knowledge and technology in the areas of materials, surfaces and energy. It is located in the San Sebastian Technology Park (Gipuzkoa).

GAIKER-IK4 Foundation is a Technology Centre focusing in four areas of expertise (Plastics & Composites, Sustainability & Environment, Recycling & Valorisation and Biotechnology). It is located in the Zamudio Technology Park (Bizkaia-Spain).

IK4-IDEKO is a Technology Centre specialised in the Machine Tool sector and Manufacturing Technologies located at the Arriaga industrial state in Elgoibar (Gipuzkoa).

IK4-IKERLAN is a Technology Centre specialised in the development of new products through the synergy of Mechanics, Electronics, Communications, Computing, Microsystems, Fuel cells, Innovation strategies and Design & Production. Its headquarters are located in Arrasate (Gipuzkoa) and Miñano (Alava).

IK4-LORTEK is a non-profit-making Research Centre set up to generate a domain of excellence in the knowledge of bonding technologies that allows companies to acquire and maintain positions of leadership in the applications of bonding techniques and processes that are decisive factors in their products or services.

IK4-TEKNIKER es un centro tecnológico especializado entre otros en Mecatrónica, las Tecnologías de Fabricación y las Microtecnologías y se encuentra ubicado en Eibar (Gipuzkoa).

VICOMTECH-IK4 (Visual Communication and Interaction Technologies Centre) is an applied research centre for Interactive Computer Graphics and Multimedia located in the Technology Park of San Sebastian (Spain).