Growers place increasingly higher demands on the varietal trueness, varietal purity, health and quality of propagating material. The quality-plus system Naktuinbouw Elite is a reliable way of indicating high quality propagating material.
Propagating material with the Naktuinbouw Elite certificate is disease free and vigorous - resulting in higher production and increased profitability.
The participating company has a quality assurance system in place that safeguards the propagating process. So Naktuinbouw Elite certified material stands for added value and certainty in all respects- for both propagators and buyers.
To participate in Naktuinbouw Elite, companies must first sign an agreement with Naktuinbouw. When a company complies with the standards and conditions, it may trade propagating material or carry out tissue culture activities in the framework of Naktuinbouw Elite.
The following companies have entered into an agreement with Naktuinbouw and meet the requirements:
| Company | Location | Country | Crops |
| Anthura B.V. | Bleiswijk | The Netherlands | Anthurium |
| Athena Mudas Ltda | Sao José do Rio Preto | Brazil | Bedding plants |
| Beekenkamp Plants B.V. | Maasdijk | The Netherlands | Begonia elatior, Bedding plants |
| Elsner pac Jungpflanzen Gbr | Dresden | Germany | Tissue culture, Bedding plants |
| Fides B.V. | De Lier | The Netherlands | Bedding Plants, Chrysanthemum, Pelargonium |
| Florensis | Zwijndrecht | The Netherlands | Bedding plants |
| Florensis | Pegões Velhos | Portugal | Bedding plants |
| Florensis | Weener-Halte | Germany | Pelargonium |
| GEDIFLORA | Staden-Oostnieuwkerke | Belgium | Chrysanthemum |
| Grünewald Veredelings B.V. | 's-Gravenzande | The Netherlands | Bedding plants |
| Hilverda Kooij B.V. | Aalsmeer | The Netherlands | Carnations |
| Imperial Plants and Horti Products B.V. | Bleiswijk | The Netherlands | Bedding plants |
| InnovaPlant GmbH & Co KG | Gensingen | Germany | Bedding plants |
| Iribov B.V. | Heerhugowaard | The Netherlands | Tissue culture, Bedding plants |
| Iribov B.V. | Piasecno | Poland | Tissue culture, Bedding plants |
| Könst Alstroemeria B.V. | Nieuwveen | The Netherlands | Alstroemeria |
| Könst Alstroemeria B.V. | Bogota | Colombia | Alstroemeria |
| Moerheim New Plant B.V. | Leimuiderbrug | The Netherlands | Bedding plants |
| PanAmerican Seed Europe B.V. | Venhuizen | The Netherlands | Dahlia |
| Sakata Elite Propagation | Salinas, CA | USA | Bedding plants |
| SBW B.V. | Roelofarendsveen | The Netherlands | Tissue culture, Bedding plants, various crops |
| SBW B.V. | Vinica | Macedonia | Bedding plants |
| Silze Jungpflanzen | Weener-Halte | Germany | Pelargonium |
| Selecta Klemm GmbH & Co | Stuttgart | Germany | Tissue culture, Bedding plants |
| Selecta Klemm GmbH & Co | Tenerife | Spain | Bedding plants |
| Stokman Rozen Kenya Ltd. | Naivasha | Kenya | Roses (Rootstocks) |
| Syngenta Seeds B.V. | Enkhuizen | The Netherlands | Bedding plants |
| Syngenta Seeds B.V. | Pollen | Kenya | Bedding plants |
| Syngenta Seeds B.V. | Kapok Plantas | Guatemala | Tissue culture, Bedding plants |
| Syngenta Seeds B.V. | Jardin Mil Flores | Guatemala | Tissue culture, Bedding plants |
| Van Zanten Cuttings B.V. | Valkenburg | The Netherlands | Tissue culture, Chrysanthemum |
| VCI Nederland B.V. | Warmenhuizen | The Netherlands | Tissue culture, Bedding plants |
| Vitrocom Holland B.V. | Honselersdijk | The Netherlands | Tissue culture, Bedding plants |
| Vitroflora | Łochowo | Poland | Tissue culture, Bedding plants |
Companies intending to participate in the quality mark system can enter into a pre-agreement with Naktuinbouw. They will be provided with the regulations, and have access to advice and support. When companies meet all the standards and conditions, they can sign an agreement for participation in Naktuinbouw Elite.
The following companies have entered into a pre-agreement with Naktuinbouw:
| Company | Location | Country | Crops |
| Volmary | Munster | Germany | Bedding plants |
| Pelargonium Decock | Komen | Belgium | Pelargonium |
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