Sirdar Spinning, Ltd
- Manufacturers of spun, dyed, and finished yarns for hand and machine knitting, and crochet applications. Retail locator. List of world wide agents. FAQ and links to related sites.
- http://www.sirdar.co.uk/

The Fibre Factory
- Manufacturers of individually hand dyed fibers, threads and textile fabrics in a wide palet of colorways for artists, students and enthousiasts. On-line purchasing facility.
- http://www.thefibrefactory.co.uk/

Rossendale Spinners Ltd
- Open-end spun, ecru and dyed yarns for knitting and weaving, from acrylic, polyester, chlorofiber, viscose, cotton, wool and blends. Stock services. Color cards.
- http://www.rossendaleyarnspinners.co.uk/

Bulmer and Lumb Group
- Group of fiber processing, dyeing and worsted yarn spinning companies. Natural and dyed tops, from polyester, polyamide, tencel, viscose, wool and blends. Blended yarns for weaving and knitting applications. Also, bleaching and printing, and commission re
- http://www.bulmerandlumb.co.uk/