A. Ferreira & Filhos, S.A. (NIF 501092579) is a family-owned knitwear and apparel maker at Rua Amaro de Sousa 408 in Caldas de Vizela, in northern Portugal’s textile belt. Danish fashion brand ELSK names it on its public supplier page as the producer of its knitted sweaters and lists its OEKO-TEX, GOTS, ISO 9001, Global Recycled Standard and BCI certifications.
A. Ferreira & Filhos, S.A. is a knitwear company in Caldas de Vizela, in the Ave valley textile belt between Guimarães and Santo Tirso. It is registered under NIF 501092579 at Rua Amaro de Sousa 408. Racius lists share capital of €1.3 million and a main activity of manufacturing other knitted apparel (CAE 14390). Its registered object also covers the dyeing and finishing of knits and yarns and the trade in yarns, fabrics and textile machinery.
Its Nordic link is ELSK, a Danish clothing brand that publishes its full supplier list. ELSK describes A. Ferreira & Filhos as a family-owned knitwear and apparel company focused on innovation, sustainability and advanced knitting technology. It says the company makes its quality knitted sweaters and lists its certifications: OEKO-TEX, GOTS, ISO 9001, Global Recycled Standard, BCI and Rede PME. ELSK says it works only with European manufacturers, in Denmark, Lithuania, Portugal, Turkey, Poland and Italy, and moves goods only by truck, train or ship, never by air. It also requires suppliers to document their sub-suppliers from Tier 1 to Tier 4. ELSK’s other Portuguese supplier on the same page is Texmade in Esposende.
ELSK is a Danish brand that has committed to European-only sourcing with no air freight, and it has chosen a northern Portuguese knitter for its sweaters, with goods moving by road, rail or sea. ELSK names its Portuguese knitter publicly and sets out the certifications it relies on, which gives other Nordic buyers a clear picture of what an established Vizela supplier offers.
Sources: ELSK — Our suppliers (customer relationship, certifications, sourcing rules, postal address); Racius (NIF, address, capital, CAE, registered object). Fetched 13 November 2026.
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