The basic equipment a professional brewery uses are the same as a basic all-grain homebrew kit:
Mash Tun with mash paddles
Hot Liquor Tank (HLT)
Boil Kettle
Primary Fermenter with Temperature Control
Brite Tank (pressurized holding tank....basically a giant keg)
Hydrometers
Thermometers
That's about it. A professional brewery is just like a home brewery except larger scale, and they will typically have a few more gadgets that help with automation and consistency. When it boils down to it (pun!), it is the same process, though.
I've even seen a professional brewery that has what is basically a 8 barrel Brew in a Bag system with a mechanized pully where a single vessel is used for mash, HLT and boil.