The following organisations are recognised Stakeholders in the programme. Additional organisations are welcome to engage by making contact with the project leads.

• Atkins Global
• Canal & River Trust
• Environment Agency
• Geotechnics Ltd
• Highways England
• HR Wallingford
• HS2 Engineering Consultants
• Infrastructure and Projects Authority
• Jacobs
• Network Rail
• Mott MacDonald
• Scottish Canals
• TfL
• Translink (Northern Ireland)
• Transport Northern Ireland
• Transport Scotland
• Welsh Government