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

• Mott MacDonald Engineering is one of the largest  a consultancy employee-owned companies in the world .
• Rider Levett Bucknall (RLB) is an independent global construction and property consultancy providing management and advice throughout the built environment.
• SETS International is a multi-disciplinary consulting firm that specializes in Transport Planning, Infrastructure Systems, Program Management, Architecture, Environment and Water Resources Management, and Electromechanical systems ( Branch Office ).