The following are the list of top engineering consultants ( consulting companies ) in Switzerland:

• ILF Consulting Engineers (ILF) is an international engineering and consulting firm that helps its clients successfully execute technically demanding industrial and infrastructure projects.
• Wood is a global leader in consulting and engineering across energy and the built environment.
• Atkins engineering is one of the world’s most respected design, engineering and project management consultancies. 
• Ramboll is a global engineering, architecture and consultancy company.