Pilkington Glass Limited 1845
- St Helens, St Helens, Merseyside, England, United Kingdom
1826 - partnership of Pilkington and Greenall families, based in St Helens, Lancashire using the trading name of St Helens Crown Glass Company.
1845 - firm known as Pilkington Brothers
1894 - incorporated as Pilkington Brothers Limited
1953-1957 - Alastair Pilkington and Kenneth Bickerstaff invented the Float Glass Process
2006 – taken over by Nippon Sheet Glass (NSG) group but continues to use Pilkington name