Sustainability is an integral part of NSI’s long term value creation strategy. Our business model is geared towards decarbonising our portfolio by reducing energy usage, owning and developing flexible and adaptive buildings, and creating inspiring, flexible working environments articulated around the health and wellbeing of our occupants.

We recognise that our industry significantly contributes to the global carbon footprint, and we are committed to reducing our impact on the environment. By making our spaces more efficient, developing in a sustainable way, and always looking for new and better ways of doing things we deliver on our ESG targets while offering the very best experiences for our customers.

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Our ambition level

Our ESG strategy is built around three focus areas addressing the most relevant environmental and social trends to create value for our stakeholders: Future-proof buildings, Energy & Carbon and Social Engagement. Improving our ESG performance has been an integral part of our long-term value creation strategy.

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Personnel & organisation

NSI aims to create healthy, inspiring and flexible working environments for its tenants and promotes a healthy way of working for its employees. Moreover, we aim to have a positive impact on the community. NSI considers an active lifestyle important to the health and well-being of its employees, and it therefore promotes physical activity, healthy nutrition and a healthy work-life balance.

We recognise the benefits of diversity and inclusion, and are fully committed to providing equal opportunities and treatment when it comes to recruitment and selection, training and development, performance reviews and promotion. Our culture is based on the principles of mutual respect and non-discrimination irrespective of nationality, age, disability, gender, religion or sexual orientation.

The NSI employee gender breakdown is 52% female and 48% male. The breakdown on the Management Board is 50% female to 50% male and in the Supervisory Board 50% female and 50% male.

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In 2023, NSI was awarded the EPRA sBPR gold award for the second year in a row.


NSI has achieved a five-star rating in the annual GRESB Real Estate Assessment. This is the highest GRESB rating possible and recognition for being an industry leader.

The result of 94 points (out of 100) is NSI’s best score so far and an improvement on last year’s score of 93 points. NSI currently ranks second out of 100 European listed companies in its peer group.

Sustainable development goals

The following SDGs are currently most relevant to our ESG programme, and reflected in our overarching priorities: