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Except Integrated sustainability

Except is a cooperative of over 30 scientists, designers, and social entrepreneurs that take sustainable development to the next level. Together we develop concepts and strategies that make places, companies, industries and day-to-day life more resilient, more sustainable, and more human.

We provide strategy, conduct research, design solutions, and reconcile stakeholder interests for projects  from a sushi menu to eco-neighborhoods, and from online eco-dashboards to self-sufficient urban communities.

Our clients are as diverse as our projects:, from small family businesses in the Netherlands to multinationals in the US and Asia. They all have one thing in common: they want cutting-edge solutions that are future-proof, cutting-edge, and above all, inspiring, realistic and feasible.

And that's what we do. Through systems thinking and innovation we change complex challenges to game changing opportunities. Curious about what we can do for you?  Talk to us

Who we are

Except Integrated Sustainability delivers concepts and strategies for resilient, just, and inspiring cities, companies, and governance. Since 1999 we bring together private and public partners and guide them towards systemic and fundamental improvement, where all stakeholders benefit. We apply innovative systemic analysis, develop road maps towards resilience, and execute solutions with inspiring design. Together we bridge gaps between sectors to accelerate the frontier of sustainability, and create concepts that are realistic and feasible.

We’re a passionate, practical, and dynamic team, known for our interdisciplinary and innovative approach. Our team consists of 30 sustainability strategists, researchers, and designers that works around the world, with our base in Rotterdam, the Netherlands.

It’s easier to run through a dark space when someone turns on the light. Our SiD systems-thinking framework sheds this light on complex challenges, speeding up strategic decisionmaking using dynamic analysis and visualization tools. SiD incorporates areas such as the circular and bio-based economy, social justice, and crowd-based development. We then guide these strategies towards realization with our partners, combining science, creativity, and social entrepreneurship. This way, we realize concepts that have greater positive impact while reducing costs and lead times for stakeholders.

We believe we need both profitable business and effective government to create the foundations for a sustainable society, as well as support from people globally. To accelerate this, we help develop awareness by sharing our knowledge in seminars, publications, workshops and with open source licenses.

Contact Information

Contact Hours
Monday-Thursday: 10:00 – 18:00
Friday: Time for reflection

phone: +31 10 737 0215


Except Netherlands
Stadhuisplein 15
3012 AR Rotterdam
the Netherlands

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Except USA
The Bourse
839 Chapel Street
New Haven, CT 06511

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