Fee income is defined as PR fees plus any mark-up. Figures from 1 January to 31 December 2013, rounded to nearest £1,000

All the figures supplied by agencies have been signed off by the agencies’ auditors, FD or external accountants

1Some agencies decline to give figures, citing restrictions imposed by the Sarbanes-Oxley Act (2002). Others including Brunswick and FTI Consulting decline to take part. We have estimated some of the larger agencies’ fee incomes in conjunction with the PRCA and accountants Kingston Smith W1, which has checked all the figures

* Formerly College Hill

**The Good Relations Group includes Good Relations, Corporate Citizenship, Harvard, TTA Property and InEvidence

***Tonic Life Communications includes Huntsworth Health

****Four Communications Group includes Colman Getty and Kinross + Render

*****Hotwire includes 33 Digital

RE – Re-entry: agency has previously featured in Top 150, but did not enter last year

NE – New entry