Having had a little poke around Sams company structure I found:
Of the 30 companies Hump is listed as being or been a director of, the following are non-trading, sold, dormant or, for the two Private Limited companies, currently have dormant accounts filed for the last financial year.
Melbourne Bros - Non Trading
Nun-Appleton Farm - Dormant Company
Bassenthwaite Brewing Ltd - Private Limited Co, Dormant Accounts
Sadwill Taverns Ltd - Private Limited Co - Dormant Accounts
Cramond Inn - Dormant Company
Nun-Appleton Estate - Sold 2003
Ye Olde Cheshire Cheese - Sold 2001
Steeton Estate - Sold 2004
Ayingerbrau Lager (UK) - dissolved 2009
Leaving 21 Active trading and holding companies in which Hump and Oliver are directors.
This is a company organogram, and the surprising find was that Samuel Smith (Southern) isn't actually a subsidiary but a parent company in its own right. (You might have to magnify your screens to read the names)