There are a number of lists of the 110 livery companies of the City of London:
Livery Companies Database - with contact details and masters' biographies
List of Livery Companies by precedence
Mottos of all the livery companies
Masters:
Picture Books of Masters and Mistresses (spouses, consorts)
Common confusions twixt hall names and their livery companies
The first named above, the official Livery Companies Database, is updated by the individual Company Clerks, and shows their masters, wardens, and contact details, and much else besides, including Google maps links to halls, pictures of the master's badge, and pdf's of masters biographies, with their photo.
