The latest CN100 index of the UK’s top contractors reveals a complex financial picture, with inflation pushing turnover up and profit down.
The 2024 CN100 – Construction News’ annual sector temperature check – ranks firms by turnover posted in annual results reported in the year to 16 August. You can check where your firm ranks this year below.
While aggregate revenue across the top 100 firms increased by 7 per cent compared with last year, pre-tax profit plummeted by 35 per cent, revealing the strain placed on the sector by high inflation and rising interest rates.
Contractors experienced mixed fortunes, with some thriving in high-growth areas like data centres and cloud computing.
However, commercial real estate activity has slowed considerably, with some firms struggling to adapt to inflation and rising costs.
David Hayhow, head of Lockton’s global construction practice, said: “Firms that managed to broaden their margins typically had a strong presence in sectors less affected by volatility, such as infrastructure or public sector work.”
CN Premium subscribers can view and manipulate this year’s CN100 data with new metrics – and compare selected company performance across the past seven years at our newly-revamped CN Intelligence data hub. Next week, CN Premium subscribers and Basic Subscribers will get exclusive access to a 3,000-word written analysis of the 2024 CN100 data.
Profit margins narrowed, with the average falling from 2.7 to 2.1 per cent, due in part to fixed-price contracts that were unable to absorb the significant rise in materials costs.
Materials inflation, which hit a peak of 19 per cent in 2022, has left a lingering impact.
Firms such as Laing O’Rourke and Bouygues reported significant losses despite higher revenue, reflecting the wider disconnect between rising turnover and profitability.
However, as inflation pressures ease in 2024, the sector remains optimistic about growth, the CN100 shows.
Headcount in the CN100 firms increased by more than 11,000 employees over the past year, reflecting confidence in future growth.
Contractors are investing heavily in future projects, particularly in areas aligned with the UK’s net-zero ambitions, according to analysts.
However, the shift to sustainable practices comes with its own financial challenges as companies must balance rising costs with the need to invest in eco-friendly technologies, commentators said.
View and manipulate more 2024 CN100 data at the CN Intelligence hub
CN 100 data tables
CN100 2024 TURNOVER | |||||
Current rank | Previous rank | Contractor | Turnover (£m) LATEST |
Turnover (£m) PREVIOUS |
Accounting period end date |
1 | 1 | Balfour Beatty | 7,993.00 | 7,629.00 | 31/12/2023 |
2 | 2 | Morgan Sindall | 4,117.70 | 3,612.20 | 31/12/2023 |
3 | 3 | Kier | 3,380.70 | 3,143.90 | 30/06/2023 |
4 | 4 | Laing O’Rourke | 3,374.30 | 2,965.50 | 31/03/2023 |
5 | 9 | Mace | 2,356.79 | 1,892.58 | 31/12/2023 |
6 | 6 | ISG1 | 2,185.10 | 2,263.70 | 31/12/2022 |
7 | 10 | Wates | 2,101.87 | 1,786.90 | 31/12/2023 |
8 | 18 | Vinci2 | 1,980.25 | 1,798.36 | 31/12/2022 |
9 | 7 | Royal Bam | 1,966.07 | 2,050.77 | 31/12/2023 |
10 | 9 | M Group3 | 1,864.60 | 1,545.30 | 31/03/2023 |
11 | 5 | Amey4 | 1,836.19 | 2,224.20 | 31/12/2023 |
12 | 22 | Bouygues UK4 | 1,470.60 | 1,527.55 | 31/12/2023 |
13 | 14 | VolkerWessels UK | 1,433.00 | 1,348.77 | 31/12/2023 |
14 | 11 | Murphy Group | 1,420.97 | 1,490.78 | 31/12/2023 |
15 | 15 | Galliford Try | 1,393.70 | 1,237.20 | 30/06/2023 |
16 | 12 | Costain | 1,332.00 | 1,421.40 | 31/12/2023 |
17 | 13 | Skanska UK5 | 1,328.59 | 1,375.98 | 31/12/2023 |
18 | 20 | Bowmer & Kirkland | 1,242.39 | 1,146.46 | 31/08/2023 |
19 | 19 | Willmott Dixon6 | 1,172.09 | 1,147.25 | 31/12/2023 |
20 | 28 | Hill Holdings7 | 1,145.86 | 636.46 | 31/03/2024 |
21 | 21 | Graham | 1,124.65 | 1,093.70 | 31/03/2024 |
22 | 17 | Sir Robert McAlpine | 1,066.36 | 1,184.73 | 31/10/2023 |
23 | 27 | McLaren | 964.22 | 751.65 | 31/07/2023 |
24 | 16 | Winvic | 958.78 | 1,217.42 | 31/01/2024 |
25 | 24 | Renew | 921.55 | 816.28 | 30/09/2023 |
26 | 33 | Dalkia | 866.93 | 561.92 | 31/12/2022 |
27 | 26 | JRL Group1 | 761.29 | 609.98 | 31/12/2022 |
28 | 25 | McLaughlin & Harvey | 736.56 | 799.59 | 30/06/2023 |
29 | 36 | Keltbray | 688.98 | 527.86 | 31/10/2023 |
30 | 32 | Multiplex | 675.40 | 561.93 | 31/12/2023 |
31 | 30 | Robertson | 670.86 | 615.58 | 30/06/2023 |
32 | 31 | Colas | 609.91 | 568.83 | 30/12/2022 |
33 | 37 | NG Bailey4 | 600.10 | 531.60 | 01/03/2024 |
34 | 40 | Caddick Group | 575.02 | 491.58 | 31/08/2023 |
35 | 42 | Northstone (NI) | 539.97 | 472.02 | 31/12/2022 |
36 | 38 | Ferrovial Construction UK8 | 536.55 | 493.20 | 31/12/2023 |
37 | 41 | FM Conway | 535.29 | 478.10 | 31/03/2023 |
38 | 61 | United Living Group | 534.18 | 436.52 | 31/03/2023 |
39 | 34 | Lendlease | 511.20 | 564.36 | 30/06/2023 |
40 | 43 | Tilbury Douglas | 492.82 | 391.99 | 31/12/2023 |
41 | 45 | TClarke | 491.00 | 426.00 | 31/12/2023 |
42 | 39 | Severfield | 463.50 | 491.80 | 30/03/2024 |
43 | NEW | OCU Group9 | 454.50 | 295.15 | 30/04/2023 |
44 | 50 | McAleer & Rushe | 436.38 | 404.35 | 31/12/2023 |
45 | 35 | TSL | 436.08 | 552.21 | 31/12/2023 |
46 | 62 | Kajima Europe | 429.40 | 263.78 | 31/12/2022 |
47 | 57 | HG Construction | 424.32 | 335.67 | 31/12/2022 |
48 | 47 | MV Kelly | 420.06 | 407.47 | 31/05/2023 |
49 | 48 | Watkin Jones | 413.20 | 407.08 | 30/09/2023 |
50 | 49 | M&J Evans Construction1 | 405.78 | 250.64 | 31/12/2022 |
51 | 44 | Ardmore | 403.10 | 435.10 | 30/09/2023 |
52 | 51 | Carey Group | 402.45 | 366.37 | 30/09/2023 |
53 | 46 | Glencar | 400.55 | 417.75 | 30/09/2023 |
54 | NEW | Portakabin10 | 393.36 | 355.95 | 31/12/2022 |
55 | 63 | JN Bentley | 388.34 | 263.47 | 31/12/2023 |
56 | 53 | John Sisk & Son1 | 350.70 | 382.89 | 31/12/2022 |
57 | 58 | Clancy | 334.50 | 292.99 | 03/04/2023 |
58 | 70 | Altrad | 334.07 | 219.48 | 31/08/2023 |
59 | 52 | GMI | 328.43 | 360.25 | 30/09/2023 |
60 | 54 | OHOB | 312.07 | 348.27 | 31/03/2024 |
61 | 59 | Alun Griffiths | 301.01 | 279.87 | 31/12/2022 |
62 | NEW | Advance Construction | 297.87 | 263.23 | 31/03/2023 |
63 | 65 | Esh4 | 292.51 | 260.89 | 31/12/2023 |
64 | 71 | Gilbert Ash | 263.22 | 219.29 | 31/12/2022 |
65 | 60 | Enerveo | 256.70 | 278.90 | 31/03/2023 |
66 | 95 | Gratte Brothers | 250.15 | 124.63 | 31/03/2023 |
67 | 64 | RG Carter | 248.50 | 321.98 | 31/12/2023 |
68 | 66 | William Hare | 248.32 | 239.51 | 31/12/2022 |
69 | 69 | CCG (Scotland) | 243.32 | 225.67 | 31/03/2023 |
70 | NEW | MWH11 | 233.71 | 235.43 | 03/04/2023 |
71 | 79 | Forth Holdings | 233.51 | 192.41 | 31/08/2023 |
72 | 83 | Renaker Build | 229.15 | 176.68 | 31/10/2023 |
73 | 87 | SDC | 229.07 | 167.12 | 30/09/2023 |
74 | 75 | Erith | 227.05 | 208.29 | 30/09/2023 |
75 | 82 | Story | 226.76 | 177.36 | 31/03/2023 |
76 | NEW | Vital Energi | 224.44 | 209.04 | 30/06/2023 |
77 | 92 | RGCM | 223.41 | 156.67 | 31/12/2022 |
78 | 76 | Morrisroe Group | 218.86 | 203.86 | 31/10/2023 |
79 | NEW | J Coffey | 215.74 | 171.08 | 30/09/2023 |
80 | NEW | Octavius | 215.45 | 191.23 | 31/03/2023 |
81 | 68 | Briggs & Forrester | 212.48 | 229.25 | 31/10/2023 |
82 | 85 | Dodd Group | 206.74 | 167.48 | 31/03/2023 |
83 | 81 | Tide Construction | 197.20 | 177.53 | 31/08/2023 |
84 | 78 | Mulalley & Company1 | 193.30 | 175.87 | 31/03/2023 |
85 | 72 | RJ McLeod12 | 192.16 | 210.27 | 31/10/2023 |
86 | 94 | Byrne Group | 191.31 | 152.74 | 30/06/2023 |
87 | 99 | Novus | 188.68 | 144.98 | 31/12/2022 |
88 | 80 | Lindum | 186.22 | 185.13 | 30/11/2023 |
89 | 88 | EW Beard | 179.94 | 165.52 | 31/12/2023 |
90 | NEW | Bechtel | 175.19 | 113.47 | 31/12/2022 |
91 | NEW | Durkan Holdings | 171.72 | 132.00 | 30/11/2023 |
92 | 84 | Mount Anvil1 | 170.85 | 135.01 | 31/12/2022 |
93 | NEW | Cityside Electrical | 170.38 | 161.81 | 30/09/2023 |
94 | 90 | Eric Wright Group | 168.03 | 163.85 | 31/12/2022 |
95 | 67 | Cruden Holdings | 167.51 | 230.96 | 31/03/2023 |
96 | NEW | ESG | 167.34 | 114.63 | 31/12/2023 |
97 | NEW | Clegg | 165.58 | 105.63 | 31/12/2022 |
98 | NEW | Babcock Rail4 | 165.45 | 145.85 | 31/03/2023 |
99 | 91 | One Group Construction | 164.51 | 160.44 | 31/12/2022 |
100 | 74 | Seddon | 160.68 | 153.86 | 31/03/2023 |
CN100 2024 PROFIT AND MARGIN | |||||||
Turnover rank | Contractor | Pre-tax profit (£m) LATEST | Pre-tax profit (£m) PREVIOUS | Pre-tax margin (%) LATEST | Pre-tax margin (%) PREVIOUS | Accounting period end date |
|
1 | Balfour Beatty | 244.00 | 287.00 | 3.1 | 3.8 | 31/12/2023 | |
2 | Morgan Sindall | 143.90 | 85.30 | 3.5 | 2.4 | 31/12/2023 | |
3 | Kier | 51.90 | 15.90 | 1.5 | 0.5 | 30/06/2023 | |
4 | Laing O’Rourke | -288.10 | 2.70 | -8.5 | 0.1 | 31/03/2023 | |
5 | Mace | 61.67 | 36.46 | 2.6 | 1.9 | 31/12/2023 | |
6 | ISG1 | 11.50 | 18.50 | 0.5 | 0.8 | 31/12/2022 | |
7 | Wates | 44.93 | 31.53 | 2.1 | 1.8 | 31/12/2023 | |
8 | Vinci2 | -6.67 | 50.49 | -0.3 | 2.8 | 31/12/2022 | |
9 | Royal Bam | -19.79 | 40.79 | -1.0 | 2.0 | 31/12/2023 | |
10 | M Group3 | -79.30 | -30.40 | -4.3 | -2.0 | 31/03/2023 | |
11 | Amey4 | 96.99 | 86.42 | 5.3 | 3.9 | 31/12/2023 | |
12 | Bouygues UK4 | -182.59 | -31.74 | -12.4 | -2.1 | 31/12/2023 | |
13 | VolkerWessels UK | 38.60 | 37.72 | 2.7 | 2.8 | 31/12/2023 | |
14 | Murphy Group | 66.84 | 44.58 | 4.7 | 3.0 | 31/12/2023 | |
15 | Galliford Try | 10.10 | 5.40 | 0.7 | 0.4 | 30/06/2023 | |
16 | Costain | 30.90 | 32.80 | 2.3 | 2.3 | 31/12/2023 | |
17 | Skanska UK5 | 27.34 | 24.52 | 2.1 | 1.8 | 31/12/2023 | |
18 | Bowmer & Kirkland | 53.35 | 63.13 | 4.3 | 5.5 | 31/08/2023 | |
19 | Willmott Dixon6 | -14.35 | -8.74 | -1.2 | -0.8 | 31/12/2023 | |
20 | Hill Holdings7 | 70.06 | 65.63 | 6.1 | 10.3 | 31/03/2024 | |
21 | Graham | 14.77 | 15.11 | 1.3 | 1.4 | 31/03/2024 | |
22 | Sir Robert McAlpine | -102.62 | 4.76 | -9.6 | 0.4 | 31/10/2023 | |
23 | McLaren | 6.37 | 2.04 | 0.7 | 0.3 | 31/07/2023 | |
24 | Winvic | 18.92 | 10.50 | 2.0 | 0.9 | 31/01/2024 | |
25 | Renew | 62.75 | 49.46 | 6.8 | 6.1 | 30/09/2023 | |
26 | Dalkia | 13.11 | 3.29 | 1.5 | 0.6 | 31/12/2022 | |
27 | JRL Group1 | 13.29 | 26.81 | 1.7 | 4.4 | 31/12/2022 | |
28 | McLaughlin & Harvey | -8.60 | 3.17 | -1.2 | 0.4 | 30/06/2023 | |
29 | Keltbray | -1.19 | 3.24 | -0.2 | 0.6 | 31/10/2023 | |
30 | Multiplex | 31.05 | 11.07 | 4.6 | 2.0 | 31/12/2023 | |
31 | Robertson | 16.35 | 20.51 | 2.4 | 3.3 | 30/06/2023 | |
32 | Colas | 13.11 | 30.24 | 2.1 | 5.3 | 30/12/2022 | |
33 | NG Bailey4 | 10.70 | -25.00 | 1.8 | -4.7 | 01/03/2024 | |
34 | Caddick Group | 35.46 | 57.99 | 6.2 | 11.8 | 31/08/2023 | |
35 | Northstone (NI) | 7.18 | 7.12 | 1.3 | 1.5 | 31/12/2022 | |
36 | Ferrovial Construction UK8 | 5.50 | -30.38 | 1.0 | -6.2 | 31/12/2023 | |
37 | FM Conway | 15.49 | 17.18 | 2.9 | 3.6 | 31/03/2023 | |
38 | United Living Group | -3.93 | -20.90 | -0.7 | -4.8 | 31/03/2023 | |
39 | Lendlease | 4.00 | 22.60 | 0.8 | 4.0 | 30/06/2023 | |
40 | Tilbury Douglas | 2.83 | -96.32 | 0.6 | -24.6 | 31/12/2023 | |
41 | TClarke | 7.60 | 10.30 | 1.5 | 2.4 | 31/12/2023 | |
42 | Severfield | 23.00 | 27.10 | 5.0 | 5.5 | 30/03/2024 | |
43 | OCU Group9 | 7.73 | 40.55 | 1.7 | 13.7 | 30/04/2023 | |
44 | McAleer & Rushe | 10.97 | 12.09 | 2.5 | 3.0 | 31/12/2023 | |
45 | TSL | 14.33 | 9.72 | 3.3 | 1.8 | 31/12/2023 | |
46 | Kajima Europe | 55.05 | 68.32 | 12.8 | 25.9 | 31/12/2022 | |
47 | HG Construction | 6.42 | 15.29 | 1.5 | 4.6 | 31/12/2022 | |
48 | MV Kelly | 40.68 | 31.24 | 9.7 | 7.7 | 31/05/2023 | |
49 | Watkin Jones | -42.50 | 18.40 | -10.3 | 4.5 | 30/09/2023 | |
50 | M&J Evans Construction1 | 23.40 | 17.60 | 5.8 | 7.0 | 31/12/2022 | |
51 | Ardmore | -10.75 | 6.55 | -2.7 | 1.5 | 30/09/2023 | |
52 | Carey Group | 0.66 | 42.43 | 0.2 | 11.6 | 30/09/2023 | |
53 | Glencar | 3.41 | 0.80 | 0.9 | 0.2 | 30/09/2023 | |
54 | Portakabin10 | 86.55 | 85.86 | 22.0 | 24.1 | 31/12/2022 | |
55 | JN Bentley | 13.55 | 6.39 | 3.5 | 2.4 | 31/12/2023 | |
56 | John Sisk & Son1 | -2.56 | 8.43 | -0.7 | 2.2 | 31/12/2022 | |
57 | Clancy | 13.50 | 10.63 | 4.0 | 3.6 | 03/04/2023 | |
58 | Altrad | 27.44 | 22.79 | 8.2 | 10.4 | 31/08/2023 | |
59 | GMI | 0.97 | -2.25 | 0.3 | -0.6 | 30/09/2023 | |
60 | OHOB | 21.06 | 20.34 | 6.7 | 5.8 | 31/03/2024 | |
61 | Alun Griffiths | -20.00 | -38.07 | -6.6 | -13.6 | 31/12/2022 | |
62 | Advance Construction | 23.95 | 17.43 | 8.0 | 6.6 | 31/03/2023 | |
63 | Esh4 | 0.60 | -0.43 | 0.2 | -0.2 | 31/12/2023 | |
64 | Gilbert Ash | 4.47 | 12.41 | 1.7 | 5.7 | 31/12/2022 | |
65 | Enerveo | -10.20 | -26.80 | -4.0 | -9.6 | 31/03/2023 | |
66 | Gratte Brothers | 1.97 | 1.56 | 0.8 | 1.3 | 31/03/2023 | |
67 | RG Carter | 12.75 | 7.06 | 5.1 | 2.2 | 31/12/2023 | |
68 | William Hare | -0.85 | -2.22 | -0.3 | -0.9 | 31/12/2022 | |
69 | CCG (Scotland) | 17.08 | 18.00 | 7.0 | 8.0 | 31/03/2023 | |
70 | MWH11 | 3.59 | 1.86 | 1.5 | 0.8 | 03/04/2023 | |
71 | Forth Holdings | 13.57 | 13.50 | 5.8 | 7.0 | 31/08/2023 | |
72 | Renaker Build | 4.96 | 5.95 | 2.2 | 3.4 | 31/10/2023 | |
73 | SDC | 2.96 | 1.77 | 1.3 | 1.1 | 30/09/2023 | |
74 | Erith | 5.12 | -13.77 | 2.3 | -6.6 | 30/09/2023 | |
75 | Story | 2.67 | 8.97 | 1.2 | 5.1 | 31/03/2023 | |
76 | Vital Energi | 4.84 | 5.52 | 2.2 | 2.6 | 30/06/2023 | |
77 | RGCM | 1.28 | 0.86 | 0.6 | 0.5 | 31/12/2022 | |
78 | Morrisroe Group | -1.32 | -6.86 | -0.6 | -3.4 | 31/10/2023 | |
79 | J Coffey | 6.45 | 4.60 | 3.0 | 2.7 | 30/09/2023 | |
80 | Octavius | 3.86 | 5.86 | 1.8 | 3.1 | 31/03/2023 | |
81 | Briggs & Forrester | 2.68 | 1.63 | 1.3 | 0.7 | 31/10/2023 | |
82 | Dodd Group | 3.54 | 2.49 | 1.7 | 1.5 | 31/03/2023 | |
83 | Tide Construction | 7.11 | 11.10 | 3.6 | 6.3 | 31/08/2023 | |
84 | Mulalley & Company1 | 3.07 | -3.30 | 1.6 | -1.9 | 31/03/2023 | |
85 | RJ McLeod12 | 26.81 | 18.60 | 14.0 | 8.8 | 31/10/2023 | |
86 | Byrne Group | 6.78 | 6.39 | 3.5 | 4.2 | 30/06/2023 | |
87 | Novus | 3.40 | 3.04 | 1.6 | 2.1 | 31/12/2022 | |
88 | Lindum | 8.11 | 7.84 | 4.4 | 4.2 | 30/11/2023 | |
89 | EW Beard | 3.94 | 3.30 | 2.2 | 2.0 | 31/12/2023 | |
90 | Bechtel | 1.90 | 5.77 | 1.1 | 5.1 | 31/12/2022 | |
91 | Durkan Holdings | -3.89 | -9.34 | -2.3 | -7.1 | 30/11/2023 | |
92 | Mount Anvil1 | 6.29 | 3.96 | 3.7 | 2.9 | 31/12/2022 | |
93 | Cityside Electrical | 5.96 | 7.57 | 3.5 | 4.7 | 30/09/2023 | |
94 | Eric Wright Group | 4.91 | 13.20 | 2.9 | 8.1 | 31/12/2022 | |
95 | Cruden Holdings | -11.71 | 4.94 | -7.0 | 2.1 | 31/03/2023 | |
96 | ESG | 3.86 | 1.26 | 2.3 | 1.1 | 31/12/2023 | |
97 | Clegg | 1.35 | 1.55 | 0.8 | 1.5 | 31/12/2022 | |
98 | Babcock Rail4 | 8.62 | -0.77 | 5.2 | -0.5 | 31/03/2023 | |
99 | One Group Construction | 7.09 | 6.99 | 4.3 | 4.4 | 31/12/2022 | |
100 | Seddon | 1.60 | -13.00 | 1.0 | -8.4 | 31/03/2023 |
CN100 2024 NET CASH TOP 20 | ||||
Net cash rank | Contractor | Net cash (£m) LATEST |
Net cash (£m) PREVIOUS |
Accounting period end date |
1 | Balfour Beatty | 474.00 | 573.00 | 31/12/2023 |
2 | Morgan Sindall | 460.70 | 354.60 | 31/12/2023 |
3 | Bowmer & Kirkland | 458.78 | 500.61 | 31/08/2023 |
4 | Vinci2 | 430.74 | 345.73 | 31/12/2022 |
5 | Murphy Group | 332.09 | 275.53 | 31/12/2023 |
6 | Skanska UK5 | 271.67 | 355.57 | 31/12/2023 |
7 | Bouygues UK4 | 266.33 | 255.35 | 31/12/2023 |
8 | Galliford Try | 220.20 | 218.90 | 30/06/2023 |
9 | Royal Bam | 190.07 | 183.85 | 31/12/2023 |
10 | Ferrovial Construction UK8 | 188.67 | 212.45 | 31/12/2023 |
11 | Laing O’Rourke | 187.30 | 226.30 | 31/03/2023 |
12 | Costain | 164.40 | 123.80 | 31/12/2023 |
13 | VolkerWessels UK | 148.10 | 146.98 | 31/12/2023 |
14 | Graham | 147.99 | 173.92 | 31/03/2024 |
15 | Wates | 138.00 | 152.89 | 31/12/2023 |
16 | Mace | 125.81 | 73.34 | 31/12/2023 |
17 | Willmott Dixon6 | 115.08 | 114.53 | 31/12/2023 |
18 | McLaughlin & Harvey | 113.73 | 85.63 | 30/06/2023 |
19 | ISG1 | 104.70 | 119.90 | 31/12/2022 |
20 | Lendlease | 95.14 | 72.10 | 30/06/2023 |
Financial data for the CN100 was gathered via official accounts filed with Companies House and stock market announcements issued before 16 August 2024. Figures cover turnover excluding JVs.
1 ISG, JRL Group, M&J Evans, John Sisk & Son, Mulalley & Company, Mount Anvil: No new accounts filed during CN100 data collection period | 2 Vinci: INCLUDES EUROVIA SUBSIDIARY | 3 M Group: Being acquired by private equity firm CVC. No new accounts filed during CN100 data collection period | 4 Amey, Bouygues UK, NG Bailey, Esh, Babcock Rail: Accounts updated twice | 5 Skanska UK: 2023 financial report included restated revenue and profit figures for 2022 | 6 Willmott Dixon: 2023 financial report included restated profit figure for 2022 | 7 Hill Holdings: Latest accounts cover 15-month period | 8 Ferrovial Construction UK: Formerly Ferrovial Agroman | 9 OCU Group: 2023 figures reflect acquisition by Triton Partners Aug 2022 | 10 Portakabin: Sold to Antin Infrastructure Partners in April 2024 | 11 MWH: Previous accounts cover 15-month period | 12 RJ McLeod: Acquired by OCU in June 2024