The Sheffield Brewery Company started brewing beer in 2006 and are located in Kelham Island area near Peddlers Market and have a tap room.
They also do brewery tours and be a brewer for a day, more details of both on the website.
They have 7 core beers in their range, 4 are below on old pump clips.
You will find cask beer on at Gardeners Rest
The Sheffield Brewery Company website is here, although some sections seem a bit outdated.
If you need to contact them then all the details are on this page here.
You will also find them on twitter : @