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Sock maker near Braga, Portugal, producing about 3.5 million pairs a year in organic cotton and merino for department stores, chains and brands such as Asket.

Flax yarn spinner using dry and half-wet spinning, operating since 1951.

Merino wool outdoor clothing — base layers, socks and jackets — founded in Vermont in 1997, now based in Boulder.

Family-owned, vertically integrated Tiruppur mill and garment maker, an early promoter of organic cotton in India, supplying organic cotton jersey to brands.