// About us


S4A, Solutions for Aviation, was founded in El Puerto de Santa Maria in early 2007 as aeronautical engineering firm oriented to the modifications and retrofits market on civil aircraft under EASA Part 21, the management of aircraft production and maintenance of continued airworthiness by EASA Part M, the quality management of companies, aviation consulting and representation in Spain of aircraft equipment and systems.

It is currently the only andalusian company accredited as Approved Design Organization (DOA) issued by EASA and the first Spanish company credited directly by the European Aviation Authority. Currently has offices in Cadiz and Madrid (Spain) and is designed to provide comprehensive engineering services to national and international aviation industry, into both private and public sectors.

As an added value to their services, S4A provides expertise, technology, adaptability to customer needs and turnkey products.

The high-skill, professionalism and continuous improvement programs through its own research and development are among the cornerstones of the company. A philosophy based on excellence that has enabled it to maintain partnerships with leading companies in Europe and as well as several Spanish universities like UCA and UPM.