Registered auditors by county

UK counties with 10 or more firms on the official Register of Statutory Auditors, ranked by how many. A statutory audit is the legally required independent audit of a company's accounts - only firms on the register may sign one, supervised for it by a Recognised Supervisory Body (ICAEW, ACCA, ICAS).

Most accountants never do statutory audit, so this is a specialist tier. Each listing links to the firm's own entry on the register and to its full Companies House record - a check a directory scraper cannot copy.