Wi-Ma SA
- Manufacturers of raw white, open-end and ring spun yarns for sewing, knitting and weaving applications, from cotton, viscose, polyester and blends. Technical information and yarn specifications. English and Polish.
- http://www.wima.com.pl/

Przędzalnia Zawiercie SA
- Manufacturers of raw white and dyed, carded and combed, open-end and ring spun yarns for knitting and weaving applications, from cotton, viscose, polyester and blends. Description of manufacturing processes. English, Polish and German.
- http://www.pzsa.com.pl/

Merinotex SA
- Manufacturers of worsted, pressure dyed, combed and twisted yarns for knitting and weaving, from wool, linen, viscose, polyester, acrylic, polyamide, spandex and blends. English and Polish.
- http://www.merinotex.com.pl/

Intertex SA
- Manufacturers of worsted, single and double, raw white and dyed yarns for knitting and weaving, from natural and man-made fibers and blends. English and Polish.
- http://www.intertex.pl/

Arelan SA
- Manufacturers of ring spun, single and three-ply twisted, standard and custom dyed yarns for weaving, and machine and hand knitting applications, from wool, cotton, flax, viscose, acrylic and blends. English, Polish and Russian.
- http://www.arelan.com.pl/