Seag was founded in 1997 and its main areas of activity are the production and assembly of fences and metalwork.
In 2000 the company moved to new facilities and expanded supply, installed a surface treatment line, shot blasting and metallization, continued to work in the area of fences and with better equipment began to perform larger dimension metalworks work.
In 2012 he started to manufacture structures for padel tenis and became the largest manufacturer in Portugal of this product.
In 2015 it acquired its own facilities, changed the metalworks shop and installed a powder coat plant. This change aimed to make the company self-sufficient in the manufacture and surface treatment of materials. The shot blasting, metallizing and painting plant remained in the old facilities.