The Extreme Light Infrastructure (ELI ERIC), is the world’s largest and most advanced high-power laser infrastructure and a global technology and innovation leader in high-power, high-intensity, and short-pulsed laser systems. ELI’s international user facility accomodates some of the most intense lasers in the world producing ultra-short pulses of high energy photons, electrons, protons, neutrons, muons and neutrinos in the (sub-) attosecond regimes on demand. In terms of research, ELI’s lasers enable a broad range of discovery possibilities from pioneering research in physics to applications and engineering. As the technology develops and spreads, ELI will become one of the more cost-effective means to conduct ‘big science’ in physics, biology, medicine and materials science. ELI ERIC consists of two facilities hosting operational world-class high-power, high-repetition rate laser systems, specialised in different fields of research with extreme light beams: the ELI Beamlines Facility in Dolní Břežany (Czech Republic) with the ERIC Statutory seat, and the ELI ALPS Facility for Attosecond Physics in Szeged (Hungary). The forthcoming third facility ELI-NP for Nuclear Physics is under commissioning in Măgurele (Romania). During the period 2024-2028, significant investments in the following technological areas are foreseen: diagnostics, detectors, sensors, optics, and instruments, complex building, constructions, and safety related systems, electrical, power electronics, electromechanical and RF systems, high precision and large mechanical components, information and communication technologies, instrumentation, control and CODAC.