Uppingham Yarns -- this is our main supplier, they have a wide range of high quality yarns. Their physical shop in near Leicester so you woud have to order online.
Knit Works (Bethnal Green) -- this place is worth a visit, they also have machine knitting classes + sell a very wide range of machine yarns.
Denier Studio (Tottenham) -- they sell deadstock yarns, good on both a sustainability front and tend to be a lot cheaper.
Useful Websites
alessandrina.com -- fantastic website with so many posts written about different knitting techniques