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greenSand team the greenSand Sprinklers

When I was 17 years old, and a hippie, I solemnized to save the world. Finally, I didn't and I became a yuppie instead. In 2008 I started greenSand, which is my second chance to help the world by sprinkling as much Olivine as possible. But now as an idealist with a revenue model. I became a Sandman after being a sound man for my whole life.

Eddy Wijnker

Founder and CEO


I sprinkle greenSand so that my son and the future generations can live a wonderful life in the future. Our planet is all what we have in common and I truly believe in the regenerative capacities of our planet. Together we can unite and regenerate our environment, and greenSand Olivine is one of the great products that will help restore our planet.

Liselotte ten Bosch

Business Development Manager


Olivine, I have known Olaf Schuiling, the father of Olivine, for a very long time and that was how I got familiar with Olivine. So I became Eddy's second client in 2010. While studying Olivine, I noticed that there are two ways of using it. One method is to put Olivine in a "pressure cooker" and manufacture reusable products (see Green Minerals). And the second method is as greenSand is promoting: using Olivine for civil, horticultural, roofing, landscaping and agricultural uses. Olivine is nature's "thermostat", which was able to control the temperature for billions of years. As we increase the CO2 emissions, let's also turn this natural thermostat a bit down.

Pol Knops

Chief Technical Officier


Since the start of greenSand (2008), I have been working with full dedication to help “Mother Earth”. greenSand Olivine connects completely to realize this objective. It is not just planting trees to capture CO2, because combustion releases CO2 capture. So many forest fires contribute to CO2 emissions. Besides the mechanical capture of CO2, which also releases too much CO2, my choice is greenSand Olivine for restoring nature. For me, the capture of CO2, in the way “Mother Earth” wants, should be done with greenSand Olivine. Now with my capabilities, I contribute to CO2 capture!

Pieter der Weduwen



Coming soon...

Jelle Brans

greenSand Promoter


Almost everyone is aware of the consequences of climate change and when it comes to CO2 cleanup, people normally think of the usage of trees, while rocks can also make a great contribution. In my point of view, cleaning up CO2 by using greenSand Olivine is currently undervalued. It’s important to have this changed. That's why I'm promoting greenSand!

Maarten Hulsman

greenSand Promotor


As the years go by I get more acquainted with the importance of sustainability and its practices. I believe if we work together as a team, we can achieve great things. Interning for greenSand gives me to the opportunity to learn how to value my surroundings. Taking care of the place we live in should be prioritized as it is our home. If we take care of earth, it takes care of us."

Jorgina Florenzan

Digital Marketing Intern


Earth is the home we all have in common. We are the first generation to truly experience the effects of climate change and we are likely the last who will have the chance to stop it. We owe it to the future generations, that they too can experience the same earth we call home. That's why I sprinkle greenSand.

Claire Jacklin

Marketing and Communications Intern


Once I stood in a French newpaper together with a group of Dutch people. The subtitle was :"Amantes des vieux pierres" (lovers of old stones). This theme now has a sequal, since my newest love is yet another stone, called Olivine.

This marvel of a mineral will help humanity to clean up the excess CO2 in the atmosphere. How cool is that?!

Irene Olie-Bont