Nelen & Schuurmans is a Water Management Consultancy & IT Company. Our mission is contributing to a healthy, safe and resilient environment. We achieve this by making the best information available to decision makers using our IT and/or consulting services. We operate in the private and public sector across the globe.

On the IT side we provide two different solutions. Lizard is a data warehouse and analytics platform for the physical environment. And with 3Di we provide hydrodynamic modelling services. On the Consultancy side we have five business lines focusing on specific topics: urban water, climate adaptation, operational water management, flood risk and water & agriculture.

A rich history

  • 1998

    The founding of Nelen & Schuurmans B.V. by Fons Nelen and Wytze Schuurmans

  • 1999

    Start N&S Consultants First project for Hoogheemraadschap van Rijnland

  • 2003

    Start Hydroinformatics in Delft Nelen & Schuurmans starts with software development

  • 2006

    Office moves to Utrecht Consultancy and Hydroinformatics are merged

  • 2007

    New IT product launch Lizard is implemented for the first time

  • 2010

    Start with development of 3Di together with Deltares, TUDelft and Stelling Hydraulics

  • 2015

    Start of Sat4Rice and IDSS projects in Vietnam and Bangladesh within the governmental 'G4AW' program

  • 2018

    Launch of BlueLabel with RHDHV and Achmea mapping climate risks for every building in the Netherlands

  • 2019

    Opening regional office in Taiwan as hub for the Asian market

  • Expansion of management team Joep Grispen (director IT) and Olga Pleumeekers (director Consultancy)

  • 2020

    Wytze Schuurmans retires Jan-Maarten Verbree (director operations) joins the management team.

  • 2022

    New Organisational Structure Organisational split into Consultancy B.V. and Technology B.V.

Our core values

Client focused

Throughout the organisation we work on helping our clients.


We offer insights into why, how and what we are doing.

Focus on quality

We combine academic problem solving with pragmatic solutions.


We take a critical approach to issues and our clients requests.

Meet the team

We have a multidisciplinary and highly skilled workforce. Our analytical consultants and software developers solve any challenge using the latest technologies.