Full sortable data from Building’s ranking of the top 150 consultants in the UK

Top 150 Consultants 2026 3x2

Top 150 Consultants 2026 coverage

RankFirmAnnual UK fees (£’000)Total UK chartered staffTotal UK staffWorldwide staffUK officesYear end
2026 rank2025 rank2025/26 financial year2024/25 financial year202620252026202520262025
1 1 AtkinsRéalis 1,720,000 1,560,000     13,970 13,836 40,827 38,304 46 31-Dec-25
2 2 Mott MacDonald 1,512,769 1,463,829 5,205 5,074 9,865 9,382 19,472 19,397 38 31-Dec-25
3 3 WSP 985,077 909,243 5,833 5,884 9,493 9,144 83,000 72,600 44 31 Dec 25
4 4 Aecom 849,955 865,842 3,233 3,314 6,951 7,092 55,212 55,436 32 3 October 2025
5 new Arup 1 767,485 752,641 1,787 1,734 6,803 6,491 19,477 18,295 18 31-Mar-26
6 6 Turner & Townsend 2 751,567 532,672 4,811 4,221 7,110 6,375 23,405 22,000 20 31-Dec-25
7 5 Arcadis 673,825 688,712 858 883 4,577 4,738 31,587 31,705 17 31-Dec-25
8 8 Foster + Partners 545,000 504,000 684 648 2,173 2,059 2,575 2,434 1 December 2025
9 7 Jones Lang LaSalle 502,000 472,000 279 327 8,515 8,784 116,643 112,000 14 31-Dec-25
10 10 Stantec 365,945 317,522 1,058 962 3,895 3,683 34,000 32,000 43 31-Dec-25
11 11 Gardiner & Theobald 239,874 234,799 782 810 1,191 1,148 1,544 1,441 8 31 March 2026
12 12 Ramboll 216,000 198,000 1,017 1,017 1,329 1,329 18,500 18,500 15 2025
13 13 Rider Levett Bucknall (RLB) 185,000 163,240 1,019 1,031 1,488 1,557 4,600 4,500 14 April 2025
14 14 Gleeds 3 179,607 162,443 586 519 1,459 1,375 3,202 2,972 18 31-Dec-25
15 15 Ridge and Partners 171,305 131,878 1,028 863 1,622 1,347 1,622 1,347 16 31 December 2025
16 new Sidara 4 170,766 142,541 537 514 1,215 1,168 7,729 7,493 28 31-Dec-25
17 new Avison Young 140,000 132,000 89   1,214   3,800   12 31-Dec-25
18 new BakerHicks 116,086 105,278 186 170 831 792 1,141 1,108 7 31-Dec-25
19 19 Newmark 106,897 95,112 478 464 947 687 9,515 8,500 12 31 March 2025
20 20 Buro Happold 93,999 75,482 724 665 1,654 1,571 3,310 3,137 6 30th April 2025
21 17 BDP 90,613 105,721 471 530 705 832 1,077 1,241 10 30 June 2025
22 21 Pick Everard 73,221 71,173 376 421 721 795 11,000 10,100 12 31-Dec-25
23 new Red Engineering Design 73,000 69,000 30 30 416 416 934 923 3 December 2025
24 new Cumming Group 5 70,060 48,453 198 168 626 521 3,050 2,600 9 31 December 2025
25 22 Cundall 69,389 66,281 254 225 760 760 1,316 1,290 7 30th June 2025
26 23 Kier Design 56,315 55,790 173 163 641 638 641 638 18 30th June 2025
27 29 Bellrock 6 54,837 36,121 99 47 412 296 412 296 13 31-Dec-25
28 24 Hollis 50,000 49,000 128 163 427 424 453 479 17 30 April 2026
29 25 Pell Frischmann 49,061 47,396 277 315 594 660 594 660 16 31 December 2025
30 27 TP Bennett 7 46,372 41,465 116 115 410 398 472 401 3 31 March 2026
31 26 CPC Project Services 8 45,784 41,979 382 343 462 407 472 412 8 31 March 2026
32 28 Allford Hall Monaghan Morris 40,558 39,903 197 223 346 369 391 402 2 31-Mar-26
33 33 Sheppard Robson 40,141 33,234 208 173 449 375 449 375 3 31-Mar-26
34 56 TSA Riley 38,084 37,333 66 69 317 335 1,050 1,032 11 30 June 2025
35 37 Purcell 35,892 27,703 182 163 333 297 352 318 10 30 April 2026
36 32 Ryder Architecture 35,066 33,742 150 170 277 322 295 344 6 30 April 2025
37 31 AHR 34,400 35,200 105 96 262 274 262 274 9 31-Mar-26
38 40 Frankham Consultancy Group 32,965 26,594 65 55 277 201 277 201 5 31 March 2026
39 38 Stride Treglown 32,696 26,997 165 156 333 318 333 318 9 31 December 2025
40 30 Troup Bywaters + Anders 30,300 36,549 49 43 285 300 292 305 7 31 March 2026
41 36 Corstorphine & Wright 29,945 27,888 159 178 289 318 289 319 13 30 June 2025
42 new Scott Brownrigg 29,070 28,685 99 109 160 166 174 182 4 31-Jan-26
43 47 Drees & Sommer 9 28,771 23,359 135 107 275 230 6,500 6,137 13 31-Dec-25
44 39 Ingleton Wood 27,234 26,833 105 115 271 282 271 282 7 31 March 2026
45 new Tuffin Ferraby Taylor 27,000 26,000 123 112 214 185 219 188 11 31 March 2025
46 44 Stace 26,000 25,000 125 125 203 212 203 212 5 31 March 2026
47 41 Calfordseaden 25,458 26,246 102 114 268 286 268 286 6 31st March 2026
48 45 Core Five Consulting 25,230 21,100   116 190 184 190 184 2 31 March 2026
49 42 WT Partnership 24,955 24,540 97 86 217 215 2,100 2,000 10 30-Sep-25
50 54 EPR Architects 24,541 20,070 100 110 181 178 257 249 2 31-Mar-26
51 53 Rapleys 22,792 20,087 133 110 207 180 207 180 8 30 April 2026
52 48 Heyne Tillett Steel 22,328 21,853 53 51 175 176 175 176 2 31-Mar-25
53 65 Civic 21,021 16,463 39 43 226 132 232 132 5 Feb-26
54 51 Faithorn Farrell Timms 10 21,000 21,000 48 43 135 124 135 124 3 31 March 2026
55 57 OFR Consultants 20,587 18,339 37 28 171 148 173 148 8 31-Mar-26
56 34 Artelia UK 19,679 16,547 40 39 192 194 11,000 10,100 14 31 December 2025
57 55 K2 Construction Management 19,666 18,897 9 17 44 54 44 54 2 31-Dec-25
58 46 Meinhardt (UK) 19,500 23,500 45 35 119 149 6,500 6,400 3 30-Jun-26
59 58 Kendall Kingscott 18,833 18,007 79 86 185 195 185 195 9 31-Mar-26
60 new Grimshaw 17,696 17,243 110 116 222 226 481 457 1 30 September 2025
61 75 BB7 Consulting 17,193 14,051 31 24 126 125 188 177 7 31-Dec-25
62 60 GIA 16,714 17,945 9 17 120 129 120 129 5 31-Mar-26
63 new Quantem 11 16,706 15,923 67 74 127 122 130 123 3 31 August 2026
64 63 Potter Raper 16,687 16,615 52 54 176 168 176 168 4 30th April 2026
65 52 Atelier Ten 16,300 20,676 42 51 148 176 239 273 4 31 December 2025
66 69 Barker Associates (Essex) 12 16,290 15,111 31 33 120 130 120 130 4 31-Mar-26
67 66 Exi Group 16,205 16,455 50 44 87 75 87 75 1 31 March 2026
68 68 Pellings 15,670 15,491 25 25 91 90 91 90 3 Apr-25
69 72 Ward Williams 15,500 14,421 48 52 140 148 140 148 9 31 March 2026
70 74 Martin Arnold 15,400 13,305 57 49 143 129 143 129 4 31 October 2026
71 61 Fulkers Bailey Russell 13 15,104 17,059 42 36 158 161 158 161 6 31-Mar-26
72 76 Airey Miller 15,100 13,633 62 60 126 120 126 120 5 30 June 2026
73 71 CampbellReith 14,836 14,688 40 40 124 123 124 123 4 Jul-26
74 new Price & Myers 13,927 13,002 48 50 133 148 133 148 4 30 April 2026
75 70 Elliott Wood Partnership 13,895 14,296 73 66 150 148 150 148 3 April 2026
76 new Harley Haddow 14 13,553 11,540 22 28 170 140 170 140 7 Apr-25
77 new Wintech Group 13,475 11,848 25 24 126 120 126 120 5 31 March 2026
78 83 Pulse Consult 13,450 10,500 110 74 130 94 133 95 7 30 September 2026
79 79 Exigere Project Services 13,336 12,125 56 56 97 96 97 96 2 31-Mar-26
80 78 MGAC 12,690 12,736 31 33 81 69 370 353 4 December 2025
81 82 Hunters 12,400 11,071 60 51 82 76 82 76 1 31 December 2025
82 80 Alan Wood and Partners 11,701 11,721 34 51 124 76 124 76 1 Dec-24
83 94 Thomson Gray 11,660 8,100 61 54 85 76 85 76 5 11660
84 73 Buro Four Project Services 15 11,393 13,251 22 17 72 79 72 79 4 31-Mar-26
85 84 Watts Group 11,057 10,325 33 36 82 80 82 80 7 31-Oct-25
86 87 Desco 11,000 9,081 57 56 113 98 132 118 5 31 December 2026
87 new GGP Consult 10,900 10,400 17 16 109 111 109 111 5 31 Oct 2025
88 81 Broadway Malyan 10,029 11,471 35 41 95 105 264 301 3 30 April 2025
89 new Associated Architects 9,955 8,354 43 39 77 65 77 65 3 Apr-26
90 86 Rund 9,713 9,152 30 26 101 93 101 93 4 March 2026
91 108 Two Plus Two Commercial Services 9,600 8,295 21 21 67 67 67 67 5 31 October 2026
92 89 Trident Building Consultancy 9,207 8,929 35 37 77 66 77 66 8 31 March 2026
93 91 Whittam Cox Architects 9,192 8,461 46 46 123 121 123 121 4 9192626
94 93 Keegans 9,158 7,956 23 24 56 58 56 58 2 31 March 2026
95 new ECE Group 8,963 8,533 66 55 112 114 112 114 3 30 June 2025
96 85 DSSR 8,800 9,450 20 21 99 94 99 94 3 30-Sep-25
97 90 Connisbee 8,678 7,488 31 28 86 76 86 76 5 31-Mar-25
98 92 ECD Architects 8,340 8,340 32 36 55 63 55 63 3 31 March 2026
99 new DB3 Group 7,952 7,178 82 81 119 117 119 117 7 Sep-25
100 new Jones Hargreaves 7,925 6,677 40 30 57 43 57 43 7 31-Dec-25
101 95 Synergy Construction & Property Consultants 7,810 7,816 22 24 84 91 84 91 3 March 2026
102 96 Services Design Solution 7,786 7,550 21 21 95 92 95 92 6 31 May 2026
103 new Safer Sphere 7,700 5,900 42 28 68 49 78 64 4 30 April 2026
104 new JM Architects 7,385 7,915 68 61 105 95 105 95 4 Nov-25
105 new Banyard Consultants 7,140 6,800 4 5 57 52   52 2 30/09/2025
106 97 Silver 7,011 7,432 4 18 45 51 45 51 1 31 March 2026
107 new Tier Consult Group 6,964 5,820 12 13 56 56 56 56 5 31 March 2026
108 119 HKS Architects 6,941 4,740 32 28 102 77 1,869 1,641 1 31 December 2025
109 106 Webb Yates Engineers 6,926 5,826 24 22 76 53 76 53 2 31 March 2026
110 102 Newsteer 6,754 6,599 40 34 46 40 46 40 1 31 December 2025
111 new Gateley RJA 6,747 6,359 11 10 77 74 77 74 5 30 April 2026
112 116 Coreus Group 6,638 4,509 33 21 93 71 93 71 6 March 2026
113 110 Capital Property & Construction Consultants 6,527 5,196 11 9 34 28 39 33 2 31-Dec-25
114 111 Method Consulting 6,500 5,170 14 10 71 60 71 60 7 31 March 2026
115 107 B&CO 6,491 5,521 23 19 32 31 33 32 1 31 March 2026
116 new Dalbergia 6,178 5,590 18 22 43 47 43 45 6 Mar-26
117 100 RG+P 6,085 6,953 23 24 78 80 78 80 3 31-Dec-25
118 98 Todd Architects 6,058 6,679 52 43 75 65 85 75 3 30 June 2025
119 122 Adair 16 5,900 5,100 27 24 43 38 43 38 3 31/12/2025.
120 109 LSI Architects (Design) 5,796 5,392 44 46 72 70 72 70 2 30 April 2026
121 129 Mesh Construction Consultancy 5,725 3,224 8 10 31 33 31 33 1 31 March 2026
122 104 Vextrix Management 5,666 5,952 35 25 62 49 62 49 3 31 December 2025
123 114 Equals Consulting 5,650 4,732 20 20 48 43 48 44 1 Sep-25
124 118 Baqus Construction & Property Consultancy 5,610 4,392 21 19 56 46 56 46 6 31-Mar-26
125 117 Circle Development 5,500 6,000 33 33 54 54 54 54 1 31st November 2025
126 123 MEC Consulting Group 5,468 3,954 1 1 55 45 55 45 4 31-Dec-25
127 105 Leslie Clark Construction Consultants 5,400 5,850 28 29 53 53 53 53 4 30 April 2026
128 112 Project & Building Consultancy 5,031 4,885 25 22 40 31 40 31 3 30th April
129 120 Colin Hardiman 4,900 3,400 64 49 74 59 99 84 3 31 March 2026
130 new CHP 4,860 4,287 22 19 32 28 39 31 2 31-Mar-26
131 new Christopher Smith Associates 4,674 4,835 10 11 35 36 35 36 3 4674
132 115 XCO2 Energy 4,569 4,703 13 16 71 79 76 84 1 February 2026
133 new Hodkinson Consultancy 4,044 3,444 14 11 35 32 35 32 1 31-Aug-25
134 137 Noviun Architects 3,837 3,837 14 14 38 38 38 38 1 31 December 2025
135 146 Childerstone Project Management 3,750 1,750 17 15 34 23 34 23 4 31-Mar-26
136 126 Pozzoni Architecture 3,503 3,369 40 33 56 49 56 49 2 31 March 2025
137 new Spring Building Consultancy 3,500 3,300 11 11 17 15 17 15 1 31st March 2026
138 125 RHP 3,446 3,494 38 32 60 54 60 54 2 30 April 2026
139 134 Macegreen Consulting 3,381 2,651 20 20 25 25 25 25 4 30 April 2026
140 new Academy Consulting 3,282 2,788 23 18 30 24 30 24 1 31 May 2026
141 new Beadmans 3,270 2,610 19 16 27 20 27 20 1 31-Mar-26
142 128 ST1 Group 3,265 3,240 10 10 42 40 42 40 2 31 March 2026
143 127 Anderton Gables 3,241 3,314 16 26 45 59 45 59 3 Mar-26
144 132 Provelio 3,124 2,873 7 6 32 28 32 28 2 Oct-25
145 140 David Miles & Partners 2,863 2,394 3 3 23 21 23 21 1 31-Dec-25
146 new Cadence 2,750 1,198 10 3 16 8 16 8 3 30-Nov-26
147 136 Playle & Partners 17 2,671 2,526 15 12 31 29 31 29 1 Mar-26
148 141 GVE Commercial Solutions 2,299 2,321 6 6 21 11 21 22 1 31 March 2026
149 new AWA Consulting Engineers 2,266 1,788 10 9 28 22 28 22 2 31-Oct-25
150 new Griffiths Evans 2,230 1,600 4 4 18 18 18 18 1 31 Jan 2026

Notes

1 Arup: Fee income unaudited.

2. Turner & Townsend merged with CBRE Project Management in January 2025. The firms have aligned year-end to 31 December and these figures have been prepared internally to accurately reflect the combined businesses for the relevant period. This position cannot be reconciled to audited accounts.

3. Gleeds: Fee income unaudited.

4. Sidara: The group comprises Perkins&Will, Currie & Brown, Introba and Penspen.

5. Cumming Group: Turnover rise due in part of acqusitions of infrastructure consultant BTTC and QS CloSE in 2025.

6. Bellrock acquired Axiom Project Services in November 25 and assets of Summers Inman were acquired in June 2025. Both businesses’ fee incomes are included for all of 2025.

7. TP Bennett acquired Bluehaus (Dubai) in May 2025.

8. CPC Project Services figures estimated.

9. Drees & Sommer UK acquired RSP Consulting Engineers (RSP) in March 2025.

10. Faithorn Farrell Timms: Fee estimate.

11. Quantem: Three months of forecast figures due to year end.

12. Barker Associates (Essex): Figures provisional.

13. Fulkers Bailey Russell: Figures unaudited.

14. Harley Haddow: No final figure for 2025/26 available.

15. Buro Four Project Services: Figures unaudited.

16. Adair: Acquired an affordable housing consultancy in April 2026.

17. Playle & Partners: Figures unaudited.

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