Leiber GmbH

Brewers’ yeast upcycling at a world-market level – since 1954.

Leiber refines brewers’ yeast into innovative products for humans and animals. For our customers we conduct research in our own laboratories and develop tailor-made solutions for healthy nutrition, biotechnology and agricultural applications. We reliably supply excellent products – and have been upcycling at world-market level since 1954.

Leiber products are sustainable and beneficial for all pets. Our central goal is to promote the health and well-being of all animals. Optimising feed quality means that feed acceptance, health and animal welfare can be improved on a sustained basis. We continuously develop new products and new uses and applications of our products for pet nutrition – often in cooperation with research institutions and universities worldwide.

With a high level of technology investment, uncompromising quality standards and an unceasing inovative spirit, Leiber turns a brewery by-product into healthy and sustainable products for pets and horses.

Leiber Brewers’ Yeast products are primarily designed to:

  • Stabilise the gastrointestinal tract

  • Provide dietetic and prebiotic mechanisms of action

  • Adsorb and inactivate harmful bacteria and mycotoxins

  • Strengthen specific and non-specific immune response

Company website
Leiber GmbH

Our story



Rooted in tradition and yet innovative for the future 

Franz Leiber founded the “Brewers' Yeast Processing Company Franz Leiber & Co” on 6 March 1954 in Damme, Germany. Previously he had worked at his parents' agricultural trading company, I.F. Leiber, founded in 1798. Given this close relationship with agriculture and nutritional sciences that started in early childhood, he developed the idea of using the vitamin B complex from the, back then little researched, brewers' yeast for animal nutrition. As a pioneer in this field, he fought for the initially so-called “unknown growth factors”.

The breakthrough for the company and brewers' yeast in animal feed came in 1964 with the introduction of the patented gentle drying process. Supported by ongoing research into every aspect of the raw material, brewers' yeast became a recognised success factor in animal nutrition. The company’s headquarters was relocated to the production facility in Bramsche in 1989.

A new branch of the company was created with the brewers' yeast extraction plant in 1994, in which the highest quality yeast extracts are developed and produced in close collaboration with our customers. A spray tower facility was commissioned as an addition in 2010. To accommodate the constant further development of Leiber products and the rising number of employees, an additional office block was acquired in 2010 to expand laboratory capacity in terms of the research and development work. A second spray drying facility was taken into service in spring 2014 to meet the increasing demand for brewers' yeast products – in this case, for animal feed.

The ever-growing number of international sales partners has completed Leiber’s brewers’ yeast network. Leiber has a global presence with its yeast products.

Using innovative biotechnological methods, Leiber has been processing the natural raw material brewers' yeast into high-quality special products, which are used today in the areas of food, animal nutrition, health and biotechnology, for more than 60 years.

With sites in Lower Saxony (Germany) and production facilities in Poland (2003) and Russia (2009), Leiber produces the highest quality brewers' yeast products with a 200-strong, committed workforce.

Product portfolio

Leiber brewers’ yeast products - Only the best for our loved ones!

  • Leiber YeaFi® | unique synergy of brewers‘ yeast and functional fibres
  • CeFi® pro | best values in bioavailability
  • Biolex® MB40 | prebiotic. gut health. MOS
  • Leiber® Beta-S | pure beta-glucans for strong immune defence
  • Leiber NuTaste® | Natural. Pure. Delicious.

Benefits of using Leiber brewers’ yeast products when feeding pets and small animals

  • Increased resistance in stressful situations
  • Improved acceptance of feed mixtures
  • Growth of a thick and shiny coat

Whether they use whole yeast cells, yeast cell wall components (MOS), highly purified beta-glucans or yeast extracts from cell interiors: Leiber Brewers’ Yeast products are always a valuable nutritional supplement, with many advantages for your pet’s longevity, health and well-being. Brewers’ yeast (Saccharomyces cerevisiae) is a proven raw material with many positive effects. Despite often being seen as only a high-quality natural protein and vitamin B source, Leiber Brewers’ Yeast products can do so much more. Together with various research institutions and universities around the world, we’re continuously working on new, innovative uses and applications in pet nutrition.

If you would like to know more, please do not hesitate to contact one of our contact partners directly.

Make use of our personal service and benefit from our competence and experience. We gladly provide you further advice!