| Title |
| Rank | Rank in Top 150 | Consultancy name | Tech fee income 2011 (£k) | Tech fee income 2010 (£k) | % change | Total PR 2011 (£k) | Percentage of total income | Total staff | Location |
| 1 | 5 | Edelman | 7,650 | 7,657 | 0 | 35,186 | 22 | 320 | London |
| 2 | 31 | Brands2Life | 6,898 | 6,386 | 8 | 6,898 | 100 | 80 | London |
| 3 | 34 | Hotwire | 6,580 | 6,501 | 1 | 6,580 | 100 | 75 | London |
| 4 | 44 | Bite Communications | 5,070 | 4,495 | 13 | 5,346 | 95 | 52 | London |
| 5 | 52 | The Whiteoaks Consultancy | 4,056 | 3,184 | 27 | 4,056 | 100 | 40 | Surrey |
| 6 | 46 | Octopus Group | 3,723 | 2,862 | 30 | 4,834 | 77 | 59 | Berks |
7 | 36 | Nelson Bostock Group | 3,526 | 3,239 | 9 | 6,283 | 56 | 73 | London |
| 8 | 54 | Waggener Edstrom Worldwide | 2,843 | 2,250 | 26 | 4,032 | 71 | 41 | London |
| 9 | 18 | The Red Consultancy | 2,240 | 2,113 | 6 | 12,619 | 18 | 151 | London |
| 10 | 81 | Pinnacle Marketing Communications | 2,210 | 1,710 | 29 | 2,210 | 100 | 17 | London |
| 11 | 86 | EML WIldfire | 2,012 | | | 2,012 | 100 | 28 | Surrey |
| 12 | 89 | CC group Communications | 1,943 | | | 1,943 | 100 | 18 | Berks |
| 13 | 65 | Speed | 1,747 | 1,908 | -8 | 3,038 | 57 | 33 | London |
| 14 | 102 | Berkeley PR International | 1,682 | | | 1,771 | 95 | 33 | Berks |
| 15 | 113 | Liberty Comms Ltd | 1,575 | 1,856 | -15 | 1,575 | 100 | 20 | London |
| 16 | 110 | The Reptile Group | 1,555 | 1,256 | 24 | 1,636 | 95 | 19.5 | London |
| 17 | 9 | Grayling | 1,330 | 635 | 109 | 24,239 | 5 | 240 | London |
| 18 | 95 | Mulberry Marketing Communications | 1,316 | | | 1,880 | 70 | 7 | London |
| 19 | 43 | 3 Monkeys Communications | 1,299 | 1,111 | 17 | 5,359 | 24 | 56 | London |
| 20 | 28 | Portland | 1,253 | | | 8,274 | 15 | 58 | London |
| 21 | 145 | Red Lorry Yellow Lorry | 987 | 835 | 18 | 1,042 | 95 | 14 | London |
| 22 | 150 | Spark Communications Ltd | 978 | 976 | 0 | 978 | 100 | 11 | London |
| 23 | N/A | Six Degrees | 954 | | | 954 | 100 | 11 | |
| 24 | N/A | Marlin PR | 951 | 706 | 35 | 951 | 100 | 14 | London |
| 25 | 13 | MHP Communications | 915 | | | 17,636 | 5 | 149 | London |
| 26 | N/A | Eskenzi PR Limited | 896 | 812 | 10 | 896 | 100 | 8 | London |
| 27 | 14 | Citigate Dewe Rogerson | 831 | 1,882 | -56 | 17,593 | 5 | 106 | London |
| 28 | N/A | Proof Communication | 819 | 680 | 20 | 819 | 100 | 9 | London |
| 29 | N/A | Touchdown PR Limited | 797 | 665 | 20 | 797 | 100 | 11 | Surrey |
| 30 | N/A | Champion Communications | 787 | 656 | 20 | 787 | 100 | 9 | London |
| 31 | 84 | Kaizo | 742 | 700 | 6 | 2,133 | 35 | 16 | London |
| 32 | N/A | Napier Partnership Limited | 507 | 618 | -18 | 507 | 100 | 11 | W Sussex |
| 33 | N/A | Context Public Relations | 497 | | | 584 | 85 | 9 | Cheshire |
| 34 | 68 | Ruder Finn UK Limited | 465 | | | 2,917 | 16 | 28 | London |
| 35 | 146 | Man Bites Dog | 410 | | | 1,013 | 40 | 14 | Brighton |
| 36 | 118 | Say Communications | 384 | 394 | -3 | 1,509 | 25 | 18 | London |
| 37 | 48 | M&C Saatchi Sport & Entertainment | 364 | | | 4,306 | 8 | 40 | London |
| 38 | N/A | CubanEight | 329 | 228 | 44 | 385 | 85 | 5 | Oxfordshire |
| 39 | N/A | iseepr | 312 | 220 | 42 | 312 | 100 | 7 | W Yorkshire |
| 40 | 138 | Rostrum Communications | 298 | 233 | | 1,242 | 24 | 11 | London |
