In 1717, Thomas Twining converted his London coffee house into a tearoom which admitted both men and women. Today, Twinings is an English tea company that sells its tea throughout Europe and North America. The original tea-tiny shop on the Strand in the heart of London still exists today.
Twinings Tea is good enough that they have a Royal Warrant ~ they supply the British Royal Family with tea. (Read more about Royal Warrants here.)
[EDITED TO ADD: Do you have a favorite Twinings tea? Mine is their Lady Grey.]