- National Authority for Tunnels (NAT )

- Egyptian  Company for Tunnels and   Transport Projects

- Sabbour Consultants

- Ehaf Consultants

- Sofretu Consultants

- Moharram - Bakhoum (ACE) Consultants

- Hamza Associates Consultants

- Green Valley Company

- Arab Contractors Company

- Dar El-Handassa Consultants