Contact us

As an engineering and consultancy firm, we advise and help clients all over the world in resolving today‚Äôs complex challenges. With a network of 19 offices in 11 countries and some 1,100 engineers and consultants, we work on improving the human environment for everyone, today and for future generations. Wondering where to find us? 

Headquarters

  • Leeuwenbrug 8
    7411 TJ Deventer
    The Netherlands

    P.O. Box 233
    7400 AE Deventer
    The Netherlands

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Our offices

Amsterdam (The Netherlands)

Breda (The Netherlands)

Deventer Van Twickelostraat (The Netherlands)

The Hague (The Netherlands)

Heerenveen (The Netherlands)

Rotterdam (The Netherlands)

Wageningen pop-up office (The Netherlands)

Accra (Ghana)

Aktau (Kazakhstan)

Almaty (Kazakhstan)

Atyrau (Kazakhstan)

Antwerp - Berchem (Belgium)

Brussels Steenokkerzeel (Belgium)

Dubai (United Arab Emirates)

Ho Chi Minh City (Vietnam)

Jakarta (Indonesia)

London (United Kingdom)

Riga (Latvia)

Singapore (Singapore)

St. Petersburg (Russia)

Worldwide network

Headquarters Leeuwenbrug (The Netherlands)

Deventer Van Twickelostraat (The Netherlands)

Amsterdam (The Netherlands)

Breda (The Netherlands)

The Hague (The Netherlands)

Heerenveen (The Netherlands)

Rotterdam (The Netherlands)

Antwerp - Berchem (Belgium)

Brussels Steenokkerzeel (Belgium)

Accra (Ghana)

Jakarta (Indonesia)

Aktau (Kazakhstan)

Almaty (Kazakhstan)

Atyrau (Kazakhstan)

Riga (Latvia)

St. Petersburg (Russia)

Singapore (Singapore)

London (United Kingdom)

Dubai (United Arab Emirates)

Ho Chi Minh City (Vietnam)