Source: every figure comes from Companies House records and the accounts companies file there. How the figures are produced.

UK companies ranked by reported turnover

Ranked by turnover (revenue) in the latest filed accounts. Only companies that report turnover can be ranked: small companies may file accounts without it, so this list covers the companies that chose or were required to publish it.

Data as of

Companies

Accounting firms

Software companies

Construction companies

Recruitment agencies

Marketing agencies

Statistics and method