• Integrated approach

  • Team player

  • Innovative solutions in projects

How we work

Any assignment Witteveen+Bos works on requires a customised solution. However, there is a common theme in how we work and what we consider important.

Witteveen+Bos is an engineering consultancy that seeks to offer the very highest level of quality, because we believe that a commitment to excellence is key to developing sustainable solutions for today’s challenges. We aim to be very good at what we do. Our staff are experts in their respective disciplines and pursue ongoing innovation. We work with expert partners and maintain a culture of entrepreneurship and trust. We consider it essential that our actions are guided by our key quality attributes: expertise, reliability and commitment. Our corporate culture is characterised by trust and scope for entrepreneurship. It is essential that everyone is enabled to excel at what he or she does, and that we offer an environment that promotes creativity and innovation.

We aim to be an engaged partner that treats its stakeholders with integrity. Our responsibilities and the way we do business are described in our Company Code. All Witteveen+Bos employees worldwide must act in accordance with this code and the resulting arrangements.

We are committed to ensuring that human rights are upheld throughout our chain and that individuals experience safe, fair and non-discriminatory working conditions. We only works with suppliers who share our conviction that fair work practices and a safe working environment are an inherent part of human rights. Read our full Modern Slavery Act Statement.

Safety in Tenders (ViA)

We are a signatory to the Governance Code for Safety in Construction (GCVB) and are obliged to include safety awareness in tenders and contracts in order to increase construction industry safety and ensure a significant reduction in accident numbers. This joint agreement, Safety in Tenders (ViA), applies to contracts in which the implementation phase started on or after 1 January 2022. For more information, contact your permanent Witteveen+Bos contact person.

Integral designing

Curious about our integral, cyclical and multifunctional design approach?

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Building Information Model

BIM makes the process of integral designing more efficient and allows stakeholders to experience the effects by means of VR

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Collaboration is key

For every assignment, we always try to assemble the best possible team

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Doing business with a creative mind

We innovate in projects together with others

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Sustainable designs

Learn more about our sustainable design principles and other tools

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Pleasant working environment

Our innovative office concept optimises multidisciplinary and integrated collaboration

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ISO 9001 is the most widely known certification for quality management systems. All of Witteveen+Bos’s operations are certified worldwide.


ISO 17025 is the quality standard for test laboratories. Witteveen+Bos conducts odour and air emission measurements under ISO 17025 accreditation. The list of operations accredited by the Dutch Accreditation Council can be found here.



The CO2 performance ladder is a Dutch sustainability instrument intended to reduce the emissions produced by organisations. This includes reduction within the business operations, within projects, and within the chain. In the Netherlands, Witteveen+Bos has been certified at the highest step on the ladder (step 5).

CO2 Certificate        Read more

The Safety Culture Ladder is a Dutch certification that promotes safety awareness and encourages safe behaviour. In the Netherlands, Witteveen+Bos has been certified at step 4 for part of the organisation.


SCC is a certification regarding safe and healthy work at third-party sites. Witteveen+Bos’s activities at third-party sites in the Netherlands are certified under SCC**. SCC is a certification regarding safe and healthy work at third-party sites. Witteveen+Bos’s activities at third-party sites in the Netherlands are certified under SCC**.


BRL SIKB 6000 is a Dutch certification for the environmental supervision of soil and waterbed remediation, waterbed interventions, and follow-up maintenance. Witteveen+Bos’s activities in these fields are certified under this standard.


ISO 27001 is a certification for information security. The internal business operations and project activities conducted by part of our organisation is certified in accordance with this standard.


ISO 14001 is the standard for environmental management certification. In the Netherlands, Witteveen+Bos is certified under this standard.