The following seed companies are sponsors of the website:

Elsoms Seeds

Elsoms Seeds is an independent company which has been breeding, producing and marketing seeds in the UK for over 100 years. Investment in research and trialling remains central to continual improvement of varietal performance for our customers. Elsoms market and distribute their range of leek varieties on behalf of Bejo Zaden. Bejo is one of the leading companies in breeding, production, processing and sale of premium quality vegetable seeds. Elsoms work closely with Bejo developing their portfolio of many promising new leek hybrids.

Rijk Zwaan

Rijk Zwaan is proud to sponsor the Leek Growers Association website. Rijk Zwaan is an independent vegetable seed breeding company active worldwide focusing on the breeding, production and sales of high quality vegetable varieties for professional growers. The company was founded in 1924 and since the outset worked on the leek crop. Originally producing open pollinated varieties such as Wintereuzen RZ and Goliath RZ, it has more recently, since the onset of leek hybridisation, worked with Matejko RZ and Matisse RZ varietals.


Seminis® is the world’s largest developer, grower and marketer of vegetable seeds for open-field and unheated-protected crops. Seminis focus on innovation to improve the quality and productivity of vegetables, investing in research and development and using the latest technology to deliver the best products to the consumer and to provide yield and value to the grower and their customers, the chain partners

Seminis is focused on giving growers the freedom to focus on their goals and real passions — the freedom to grow the very best crops, the freedom to grow their business and the freedom to build their futures.


Syngenta is one of the world’s leading companies with more than 27,000 employees in some 90 countries dedicated to our purpose: Bringing plant potential to life.

With markets led strongly by protocols, Syngenta is proud of the work undertaken to gain market acceptance and support for the portfolio. Many of the varieties and products are market leaders in their sector.

Syngenta is committed to investment in research and development in order to provide integrated crop solutions to meet the needs of the whole value chain.