GL Garrad Hassan

GL Garrad Hassan is the world's largest independent technical and engineering consultancy for renewable energy. We are the recognised global authority on onshore and offshore wind power and also serve the wave, tidal and solar sectors.

GL Garran Hassan

Garrad Hassan was formed in 1984 to meet the growing demand for independent consultancy services in the wind energy sector. Since then we have developed our solar, wave and tidal energy business streams.

In July 2009 GL and Garrad Hassan merged to form GL Garrad Hassan; although the name is new, the business has a rich heritage. As a consulting company, it has no equity stake in any device or project. This rule of operation is central to its philosophy which sets it apart from many other players and underlines its independence. Created by the integration of specialist companies it has become the world's largest renewable energy consultancy.

In September 2013 DNV and GL have merged to DNV GL. DNV GL forms the world’s largest ship and offshore classification society, a leading technical advisor to the oil & gas industry and a leading expert for the energy value chain including renewables. DNV GL also takes the position as one of the top three certification bodies in the world.

Key reasons why clients come to GL Garrad Hassan is the unparalleled breadth and depth of world-class technical expertise provided by our dedicated employees.

We are able to provide employees with challenges which are both technologically demanding and commercially exciting. Please view our current vacancies for a list of the current opportunities.


2064 Maryhill Road
G20 0AB