Network Rail paid more money to Bam Nuttall than any other construction company last year, according to new figures.
The infrastructure operator spent more than £320m with the Dutch-owned civils specialist in the year to April 2023.
Colas Rail received the second most, at just over £300m in the period, the supplier table released by Network Rail showed.
J Murphy & Sons, Balfour Beatty Rail, AtkinsRéalis and Amey all featured in the top 10 construction companies by value of work with the infrastructure body, as did Amalgamated Construction, Octavius Infrastructure and Story Contracting.
Atkins made a second appearance as part of the East West Rail Phase 2 Alliance, which also contains Laing O’Rourke and VolkerRail.
Power supplier EDF Energy topped the broader supplier table, charging Network Rail more than half a billion pounds last year. Train and signalling specialist Siemens Mobility was only just behind.
Workforce supplier Alexander Mann Solutions also appeared in the top 20, receiving more than £100m from the infrastructure body.
Overall, Network Rail’s investment with its top 20 suppliers grew from £3.5bn in 2021/22 to £3.8bn last year.
This is the second successive year that Bam Nuttall has topped the construction spend table.
Top 10 construction suppliers to Network Rail 2022/23 |
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| Rank | Company | (£m) |
| 1 | Bam Nuttall | 321.58 |
| 2 | Colas Rail | 301.31 |
| 3 | J Murphy & Sons | 291.87 |
| 4 | Balfour Beatty Rail | 269.32 |
| 5 | Amalgamated Construction | 254.19 |
| 6 | Octavius Infrastructure | 148.31 |
| 7 | Story Contracting | 148.01 |
| 8 | Atkins | 146.06 |
| 9 | Amey Rail | 142.54 |
| 10 | East West Rail Phase 2 Alliance | 115.66 |