In all, around 70 companies have joined foundation RHP
Some companies are certified for one quality mark, others for more fields of application. You can request the certified companies per field of application through the tool below.
For products with the RHP Horticulture quality mark you are admitted to 57 companies with your order and for products with the RHP Mushrooms quality mark you can choose from 4 companies.
RHP certificied companies organised per field of application