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