William Reid & Co.,were in porcelain makers in Liverpool between 1756-61. Their factory was situated on Brownlow Hill where a bone-ash porcelain was produced. Although two of the partners were described as enamellers, it does not seem that much, if any, printing was carried out at the factory itself. Many of the surviving pieces of Reid's printed porcelain are signed Sadler and the majority of the printed shards found on the Reid site appear to be Sadler's work, including two that are signed. The various partners in Reid & Co were declared bankcrupt in 1761 due to factors not directly relating to the porcelain factory, although it does not seem to have been a profitable venture.
To see Reid porcelain click here
Reference
Hillis, Maurice. 2011. Liverpool porcelain 1756-1804, chapter 3