Wirral Archives Service holds records for the following Wirral businesses:
ZAR - Argyle Theatre of Varieties
ZBA - Christopher Barlow, pawnbroker
ZBB - Barker and Briscoe Ltd, brickmakers
ZBR - Bryson collection
ZBY - Boughey and Son, estate agents
ZCJ - Corkhill and Job, auctioneers
ZCL - Cammell Laird Shipbuilders Ltd
ZCR - C. H. Crawshaw, chemists
ZEL - L. Ellis and Company, ships furnishers
ZFI - Owen Fitzpatrick and Son, cabinet makers
ZG - Gandy Ltd, machine belting manufacturers
ZHH - Henry Hornby
ZHI - Birkenhead Hippodrome
ZME - George Starbuck / G. F. Milnes / G. C. Milnes, Voss and Company, tramcar manufacturers
ZMR - Mersey Railway Company
ZMX - "miscellaneous business records"
ZRO - Roberts and Company (Birkenhead) Ltd, builders merchants
ZST - Storeton Quarries
ZTL - Tranmere Laundry Ltd
ZWA - V. C. Walker, export agent
ZWC - Woodfield Cooke, pharmacist
ZWN - Wirral News Group (see Newspapers)
ZWO - Woolcott and Company, solicitors
ZWP - West Cheshire Brewery
ZWQ - Birkenhead Brewery