| AECOM Limited shared | £152,000,000 | 8 Jan 2025 | active |
| AECOM Limited (appointed to Lots 2, 10 and 11) shared | · | · | active |
| Alan Wood Partnership Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Alan Wood Partnership Limited (appointed to Lots 6, 8, 9 and 12) shared | · | · | active |
| Align Property Partners shared | £152,000,000 | 8 Jan 2025 | active |
| Align Property Partners (appointed to Lots 3 and 7) shared | · | · | active |
| Amey OW Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Amey OW Limited (appointed to Lots 1 and 12) shared | · | · | active |
| Arcadis Consulting (UK) Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Arcadis Consulting (UK) Limited (appointed to Lots 3 and 10) shared | · | · | active |
| Associated Architects shared | £152,000,000 | 8 Jan 2025 | active |
| Associated Architects (appointed to Lot 4) shared | · | · | active |
| AtkinsRéalis UK Limited shared | £152,000,000 | 8 Jan 2025 | active |
| AtkinsRéalis UK Limited (appointed to Lots 3, 5, 6, 7, 8, 9, 10 and 11) shared | · | · | active |
| Baker Hicks Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Baker Hicks Limited (appointed to Lots 1 and 4) shared | · | · | active |
| BWB Consulting Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| BWB Consulting Ltd (appointed to Lots 6 and 7) shared | · | · | active |
| Castle Owen Construction & Property Consultants Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Castle Owen Construction & Property Consultants Limited (appointed to Lot 8) shared | · | · | active |
| Currie & Brown UK Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Currie & Brown UK Limited (appointed to Lot 8) shared | · | · | active |
| Curtins Consulting Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Curtins Consulting Limited (appointed to Lot 6) shared | · | · | active |
| DarntonB3 Limited shared | £152,000,000 | 8 Jan 2025 | active |
| DarntonB3 Limited (appointed to Lot 4) shared | · | · | active |
| DKP Consulting Limited shared | £152,000,000 | 8 Jan 2025 | active |
| DKP Consulting Limited (appointed to Lot 5) shared | · | · | active |
| Gotch Saunders & Surridge LLP t/a GSSArchitecture shared | £152,000,000 | 8 Jan 2025 | active |
| Gotch Saunders & Surridge LLP t/a GSSArchitecture (appointed to Lot 4) shared | · | · | active |
| HaskoningDHV UK Ltd. shared | £152,000,000 | 8 Jan 2025 | active |
| HaskoningDHV UK Ltd. (appointed to Lot 11) shared | · | · | active |
| Hydrock Consultants Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Hydrock Consultants Limited (appointed to Lot 2) shared | · | · | active |
| Identity Consult Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Identity Consult Limited (appointed to Lots 5 and 9) shared | · | · | active |
| JCP Consulting Engineers Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| JCP Consulting Engineers Ltd (appointed to Lot 7) shared | · | · | active |
| Jeremy Benn Associates Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Jeremy Benn Associates Limited (appointed to Lot 10) shared | · | · | active |
| Kier Business Services Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Kier Business Services Limited (also known as Kier Design and Business Services - "DaBS") (appointed to Lots 4, 5, 8 and 9) shared | · | · | active |
| Land Use Consultants Ltd (LUC) shared | £152,000,000 | 8 Jan 2025 | active |
| Land Use Consultants Ltd (LUC) (appointed to Lot 10) shared | · | · | active |
| Langtry-Langton Architects shared | £152,000,000 | 8 Jan 2025 | active |
| Langtry-Langton Architects (appointed to Lot 4) shared | · | · | active |
| Local Transport Projects Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Local Transport Projects Limited (appointed to Lot 2) shared | · | · | active |
| Mason Clark Associates Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| Mason Clark Associates Ltd (appointed to Lots 1, 3, 6, 8, 9 and 12) shared | · | · | active |
| Mott Macdonald Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Mott Macdonald Limited (appointed to Lots 3, 4, 7, 10 and 11) shared | · | · | active |
| NORR Consultants Limited shared | £152,000,000 | 8 Jan 2025 | active |
| NORR Consultants Limited (appointed to Lots 3 and 4) shared | · | · | active |
| Ove Arup and Partners Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| Ove Arup and Partners Ltd (appointed to Lots 1, 2, 6, 7, 10, 11 and 12) shared | · | · | active |
| Pell Frischmann Consultants Ltd. shared | £152,000,000 | 8 Jan 2025 | active |
| Pell Frischmann Consultants Ltd. (appointed to Lots 1, 2 and 12) shared | · | · | active |
| Ramboll UK&I Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Ramboll UK&I Limited (appointed to Lot 2) shared | · | · | active |
| Rider Levett Bucknall UK Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| Rider Levett Bucknall UK Ltd (appointed to Lots 3, 5, 8 and 9) shared | · | · | active |
| Ridge and Partners LLP shared | £152,000,000 | 8 Jan 2025 | active |
| Ridge and Partners LLP (appointed to Lot 3) shared | · | · | active |
| RPP Limited trading as Rex Procter and Partners shared | £152,000,000 | 8 Jan 2025 | active |
| RPP Limited trading as Rex Procter and Partners (appointed to Lots 5, 8 and 9) shared | · | · | active |
| RPS Consulting Services Limited shared | £152,000,000 | 8 Jan 2025 | active |
| RPS Consulting Services Limited (appointed to Lot 1) shared | · | · | active |
| RSK Environment Limited shared | £152,000,000 | 8 Jan 2025 | active |
| RSK Environment Limited (appointed to Lot 1) shared | · | · | active |
| Services Design Associates Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| Services Design Associates Ltd (appointed to Lot 7) shared | · | · | active |
| Sum Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| Sum Ltd (appointed to Lot 5) shared | · | · | active |
| SYSTRA LIMITED shared | £152,000,000 | 8 Jan 2025 | active |
| SYSTRA LIMITED (appointed to Lots 2 and 12) shared | · | · | active |
| Turner & Townsend Project Management Limited shared | £152,000,000 | 8 Jan 2025 | active |
| Turner & Townsend Project Management Limited (appointed to Lots 3, 5 and 9) shared | · | · | active |
| Waterman Infrastructure & Environment Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| Waterman Infrastructure & Environment Ltd (appointed to Lots 1 and 12) shared | · | · | active |
| Wilde Consultants Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| Wilde Consultants Ltd (appointed to Lot 1) shared | · | · | active |
| Wm. Saunders Partnership LLP (trading as William Saunders) shared | £152,000,000 | 8 Jan 2025 | active |
| Wm. Saunders Partnership LLP (trading as William Saunders) (appointed to Lot 6) shared | · | · | active |
| WSP UK Ltd shared | £152,000,000 | 8 Jan 2025 | active |
| WSP UK Ltd (appointed to Lot 1, 2, 6, 7, 11 and 12) shared | · | · | active |
| not named | · | · | unsuccessful |