https://hollanders.com/ Decorative papers and bookbinding supplies. Tools, tapes, linen thread, leather, blank and diary text blocks and more can be found here. Workshops are given too, when permissable.
https://www.talasonline.com/ A virtual oasis of bookbinding, printmaking, conservation and other fine art supplies and tools! If you can’t find it here, you may not need it. High quality products. Shipping is fast and the service is excellent.
One of the oldest binderies in London, this firm does binding, conservation and repair work and trains apprentices in partnership with several Royal organizations and guilds. The bindery will accept appointments and their professionals teach classes. Their legacy...
Micro-Mark specializes in small scale tools. Some are helpful in bookbinding and box-making.