Best 150 Specialists 2024 protection
| Rank | Company | UK chartered challenge managers | Overall UK chartered body of workers | Overall UK body of workers | UK workplaces | |||
|---|---|---|---|---|---|---|---|---|
| 2024 rank | 2023 rank | Overall | 2024 | 2023 | 2024 | 2023 | ||
| 1 | 1 | Mott MacDonald | 1,588 | 5,096 | 4,610 | 9,682 | 8,773 | 27 |
| 2 | 2 | Turner & Townsend | 1,496 | 2,979 | 2,344 | 4,905 | 3,990 | 16 |
| 3 | 5 | Mace | 757 | 1,343 | 1,158 | 4,564 | 4,580 | 8 |
| 4 | 4 | Arcadis | 749 | 2,994 | 2,509 | 4,767 | 4,075 | 26 |
| 5 | 3 | Aecom | 700 | 3,116 | 3,150 | 6,939 | 7,240 | 28 |
| 6 | 8 | Rider Levett Bucknall | 374 | 954 | 765 | 1,462 | 1,050 | 14 |
| 7 | 7 | WSP | 363 | 5,903 | 5,865 | 8,765 | 8,233 | 35 |
| 8 | 6 | Gardiner & Theobald | 334 | 791 | 803 | 1,136 | 1,074 | 8 |
| 9 | 9 | CPC Mission Services and products | 201 | 301 | 274 | 356 | 322 | 7 |
| 10 | 11 | BDP | 173 | 640 | 569 | 1,008 | 917 | 10 |
| 11 | 10 | Currie & Brown | 139 | 400 | 446 | 665 | 651 | 18 |
| 12 | 12 | Gleeds | 115 | 521 | 471 | 1,372 | 1,263 | 20 |
| 13 | 14 | Ridge and Companions | 112 | 710 | 638 | 1,210 | 1,030 | 13 |
| 14 | 15 | Jones Lang LaSalle | 98 | 298 | 264 | 5,807 | 5,679 | 14 |
| 15 | 17 | Select Everard | 82 | 398 | 372 | 688 | 630 | 14 |
| 16 | 18 | Ramboll | 64 | 1,017 | 955 | 1,588 | 1,509 | 15 |
| 17 | 16 | Arup | 61 | 1,773 | 1,743 | 7,205 | 7,123 | 17 |
| 18 | 19 | Stace | 50 | 117 | 119 | 210 | 208 | 5 |
| 19 | 20 | Hilson Moran Partnership | 48 | 192 | 185 | 216 | 215 | 4 |
| 20 | 28= | Calfordseaden | 27 | 118 | 125 | 316 | 339 | 6 |
| 21 | new | Drees & Sommer | 26 | 83 | 87 | 218 | 235 | 8 |
| 22 | 28= | Ward Williams | 22 | 59 | 53 | 159 | 145 | 7 |
| 23= | 24 | Ryder Structure | 21 | 175 | 135 | 321 | 287 | 6 |
| 23= | 26 | Tuffin Ferraby Taylor | 21 | 112 | 101 | 185 | 168 | 10 |
| 25 | TSA Riley | 20 | 82 | 78 | 220 | 209 | 9 | |
| 26 | 50= | Foster + Companions | 19 | 528 | 422 | 1,771 | 1,561 | 1 |
| 27 | 33= | Thomas and Adamson | 18 | 57 | 50 | 95 | 89 | 3 |
| 28 | 23 | Fulkers Bailey Russell | 17 | 49 | 77 | 183 | 179 | 7 |
| 29 | new | TP Bennett | 16 | 134 | 140 | 392 | 401 | 3 |
| 30= | new | Artelia Tasks UK | 15 | 66 | 50 | 212 | 133 | 3 |
| 30= | new | MGAC | 15 | 48 | 46 | 107 | 102 | 4 |
| 32= | 34= | Systra | 14 | 74 | 67 | 844 | 1,096 | 12 |
| 32= | new | Buro 4 Mission Services and products | 14 | 17 | 17 | 81 | 85 | 7 |
| 32= | 30= | Walker Sime | 14 | 34 | 43 | 63 | 80 | 3 |
| 35= | 38= | Stantec | 12 | 734 | 719 | 2,502 | 2,390 | 29 |
| 35= | 38= | WT Partnership | 12 | 81 | 79 | 211 | 210 | 13 |
| 35= | 34= | Potter Raper | 12 | 60 | 65 | 183 | 192 | 5 |
| 35= | 38= | Kier Industry Services and products | 12 | 98 | 88 | 191 | 180 | 4 |
| 35= | 46= | Bailey Partnership | 12 | 118 | 92 | 170 | 132 | 10 |
| 35= | 50= | Keegans | 12 | 22 | 16 | 48 | 41 | 2 |
| 41= | 44= | Pell Frischmann | 11 | 284 | 238 | 604 | 517 | 14 |
| 41= | 42= | Leslie Clark Development Specialists | 11 | 26 | 26 | 50 | 51 | 4 |
| 43= | 49 | Exi Workforce | 10 | 47 | 35 | 80 | 61 | 1 |
| 43= | new | Airey Miller | 10 | 51 | 50 | 113 | 105 | 4 |
| 43= | new | Vextrix Control | 10 | 26 | 20 | 65 | 54 | 3 |
| 46= | new | Frankham Consultancy Workforce | 8 | 55 | 43 | 201 | 189 | 4 |
| 46= | 46= | Baily Garner | 8 | 74 | 65 | 232 | 194 | 2 |
| 46= | new | Watts Workforce | 8 | 52 | 51 | 77 | 77 | 7 |
| 46= | new | Academy Consulting | 8 | 21 | 30 | |||
| 49= | new | Meinhardt | 6 | 34 | 21 | 145 | 141 | 4 |
| 49= | new | Hunters | 6 | 48 | 49 | 74 | 69 | 1 |
