| Name | Total Supplied | |
|---|---|---|
| HS2 PHASE 1 ENGINEERING DELIVERY | £5,101,048 | |
| ENVIRONMENT AGENCY (PETERBOROUGH) | £372,958 | |
| GROUNDSURE LIMITED | £353,283 | |
| OVE ARUP & PARTNERS LIMITED | £231,312 | |
| NETWORK RAIL INFRASTRUCTURE LIMITED | £145,078 | |
| ATKINS LTD | £90,075 | |
| SNC/LAVALIN RAIL & TRANSIT LTD | £64,690 | |
| ALTAIR ENGINEERING LIMITED | £48,960 | |
| NETWORK RAIL CERTIFICATION BODY LIMITED | £38,305 | |
| THE FEDERATION OF GROUNDWORK TRUSTS T/A GROUNDWORK UK | £34,338 | |
| ASSET MANAGEMENT CONSULTING LIMITED | £30,603 | |
| JACOBS U.K. LIMITED | £29,318 |