About Devenish

The Devenish Group is made up of companies all working together to develop sustainable animal nutrition solutions.


Headquartered in Northern Ireland, with sites across Ireland, the UK, USA, Mexico, Turkey and Uganda, our team of nutritionists use science and technology to ensure the most effective and efficient utilisation of nutrients in the production of food.

A-One - With over 45 years' experience, A-One has a proven track record in developing starter feeds for the pig and game bird sectors. Based in Dishforth, Yorkshire, A-One also has a team in Denmark.

Yem-Vit – Yem-Vit manufactures and sells a range of premixes and feed additives for the ruminant, poultry, and aqua sectors. From its manufacturing site in Izmir, Turkey, Yem-Vit exports throughout the Middle East and North Africa region.