Investment Projects

Project > Cutting edge sustainable development


Except Integrated Sustainability

Tom Bosschaert

Email  [javascript protected email address]
Phone   +31 10 7370215

“I am impressed by the energy, expertise and commitment I see. I know you do it because it's part of your job at Except, but also - like all IUCN colleagues - because it hits you personally. Because you recognise the need for transformation to a sustainable society.”
-- Miriam van Gool - Interim manager Leaders for Nature
“If you want to know where the future of integrated sustainable area development is heading, take a look at [Except's] Schiebroek-Zuid project.”
-- Marion Bakker
Advisor Area Development, NL Agency, Government of the Netherlands

Our investment projects represent the cutting edge of sustainable development today. They are built on the most promising ideas brought together by our teams, and developed with experienced professionals to ensure success.

With our visionary investors we hope to realize significant change through these projects, set an example of sustainable development, and deliver healthy profits to continue innovating.

Solid investment platform

We believe in what we do. That's why we set up and invest many hours and resources in our own projects, and are committed to them in the long term to ensure their success.

This way we provide security and support to our visionary capital investors.

Scale & scope

The scale of our investment projects ranges from small publications with a turnaround time of less than half a year to large scale urban developments.

The scope of our investment projects include all major sustainability areas, including:

  • Sustainable cities, buildings and landscape
  • Agricultural systems and food
  • Industrial symbiosis & circular economy
  • New sustainable businesses models
  • Information technology, software & knowledge management
  • Publications, books & education material
  • Sustainability methods & tools


We enjoy working with investors that are engaged and passionate about making positive change to the world.

If you're interested in sustainable investment of this kind, let us know and we'll be happy to inform you about our projects, our way of working and wether or not we can cooperate.

Available projects

The running investment projects that are public are listed below.

At any time we have new projects under development that are not listed here. Contact us to know more about these and other projects.


Polydome pilot

Polydome is a revolutionary model for sustainable agriculture. It doesn't rely on any ecologically harmful practices or fossil fuels, while being as productive as the most advanced agriculture systems out there.

Polydome is succesful as one of our first investment projects, and the model is complete. Now, we're looking for visionary investors and partners to develop Polydome pilots, both in urban settings and rural. Read more about the original Polydome project here.

Interested in investing in Polydome? Contact us for more details.


The International Research Institute for Autonomous Development (IRIAD) is a global knowledge institute focused on locally integrated sustainable development.

IRIAD combines scientist, engineers, designers and developers in a world wide knowledge network to support the transition to a brighter future. It physically builds this reality in an inspiring living and working campus where energy, water and food are produced alongside research and education facilities. 

IRIAD is currently in its planning stage, looking for foundations and capital investors to develop its first facility. Contact us for more information.


MaasNet is an online knowledge sharing and management platform focused at improving operations around the Rotterdam harbour and industrial area.

Using new discoveries in IT and cooperative frameworks it creates a stronger economic reality, saves resources and estbalishes strong stakholder networks in the area.

Participation in the MaasNet project is currently offerted to interested parties in and around Rotterdam. If you are interested in participating, please contact us here.


FlowMat is an online software application that enables the development, simulation and monitoring of large scale material and energy cycles, such as urban metabolism, industrial symbiosis and the circular economy.

FlowMat is built on Except's decade of experience in systems modeling and analysis. The project is in its development stage, and is currently in search for venture capital, with a return on investment of within 4 years.

Interested in participating? Contact FlowMat's development manager Tijn Schmits for more information.

Elemental World

Elemental World is a book which maps all the essential energy and material resources our world in beautiful maps that deliver new insights in how our world works. 

The book is a short-cycle development, aimed at making an inspiring coffee-table book and connected resource website. Interested in supporting Elemental world? Contact us for more information.

Utrecht Innovation Community

The Utrecht Innovation Community is a collaborative hub for independent entrepreneurs to work together on sustainable solutions in the city of Utrecht. 

Build on the experience of the Rotterdam Collective, the Utrecht Innovation Community offers 1500-2000 m2 of office and work space for collaboration, education and development in the heart of the city. Existing partners are the City of Utrecht, Utrecht.Inc, Utrecht Investment Agency and Taskforce Innovation.

The UIC is currently establishing its building and workspaces, and is looking for partners to develop content and resources. Interested in participating? Contact the UIC's development manager Tom Bosschaert here.