Portmeirion Pottery was created in 1960.
Portmeirion pottery is a British based pottery company based in Stoke-on-Trent. Someone in UK could find Porteirion pottery in Stoke-on-Trent, England.
It appears that some giftware I have seen (small dishes etc) is made in China. Of the Portemeirion dinnerware I have bought recently, all are marked made in Britain.
Pottery Barn was created in 1949.
Cambrian Pottery was created in 1790.
Dedham Pottery was created in 1896.
Catalina Pottery was created in 1927.
Clayburn Pottery was created in 1953.
Hornsea Pottery was created in 1949.
Nantgarw Pottery was created in 1813.
Burleigh Pottery was created in 1851.
Burmantofts Pottery was created in 1859.
Belleek Pottery was created in 1857.