We Are Castle Group
Belgian food ingredients & processing since 1868
Milk powders, plant-based ingredients, and contract processing services—produced in Belgium and powered by renewable energy.
At Castle Group®
, we proudly offer:
Dairy ingredients under Castle Dairy® (since 1934)
A comprehensive range of milk powders, including whole milk powder, skimmed milk powder, cream powder, whey powder, milk replacers and more, serving applications such as bakery, chocolate, ice cream, beverages, sports nutrition and desserts.
Plant-based ingredients within Castle Ingredients®
Mung bean–based ingredients (protein, flour, starch and splits), egg replacers and cocoa replacers, artisanal and malt baking flours, toasted seeds and cereals, and baking premixes for plant-based and clean-label recipes.
Processing & services by Castle Processing®
Heat treatment (roasting, drying, pasteurisation/sterilisation, saccharification, deodorisation), grinding & milling, dry blending & mixing, dry fractionation, product development, private label packing, custom transformations, packaging, cold storage and logistics, all powered by 100% electric, solar-based processing in our Belgian factories.
Our Factories & Companies
Our state-of-the-art green factories, located in Lontzen and Hombourg, Belgium, cover an impressive area of 35,000 m² and 13,000 m², respectively, and operate exclusively on renewable energy sources. These facilities are equipped with 6.45 MWc of photovoltaic solar panels on the roof, harnessing clean energy to power our 100% electric production processes, resulting in zero fossil fuel emissions.
The Lontzen facility, which includes cool and freezer rooms, is strategically compartmentalized for maximum efficiency.
Situated adjacent to the E40, Europe's longest highway spanning approximately 8,000 kilometers across ten countries, including France, Belgium, the Netherlands, Germany, Switzerland, Austria, Hungary, Romania, Bulgaria, and Turkey, our location is strategically positioned just 12 kilometers from the German border and a mere 15 kilometers from the Netherlands.
Our Quality
Compliance with international and national standards, guidelines, and certifications is of utmost importance in responsible food manufacturing. At Castle, we ensure strict adherence to a broad spectrum of international and country-specific standards and regulations. We stay abreast of the latest developments in this field to guarantee the safety and ethical production of our products throughout the entire supply chain.
Our Sustainability
We're proud to be at the forefront of sustainable practices with a strong emphasis on:
Green factories:
Our facilities are powered by 6.45 MWc of photovoltaic solar panels on the roof. This clean energy source fuels our 100% electric production processes, ensuring zero fossil fuel emissions.
Efficiency and automation:
Our streamlined processes prioritize efficiency and automation, reducing waste and energy consumption. Heat recovery and advanced fume treatment contribute to our environmentally conscious approach.
Eco-responsible logistics:
Sustainability extends to our logistics, including packaging recycling.
Biodiversity preservation:
We are committed to respecting and preserving biodiversity in every aspect of our operations.
Digital transformation:
We have embraced a paperless approach with completely electronic document exchanges, contributing to a more sustainable future.
Our History and Values
Our legacy
Since 1868, Castle Group® has grown as a Belgian family-owned company in the heart of the European food industry. What began as a local dairy business has evolved into a specialist in milk powders, plant-based ingredients and value-adding services for food manufacturers.
Across more than a century, one thing has remained constant: our focus on technical expertise, reliable quality and long-term partnerships with our customers.
Looking ahead
Rooted in tradition but driven by innovation, Castle Group® continues to adapt to a changing food landscape. We invest in new technologies, new raw materials and new ways of working so that our customers can respond faster to market demands in dairy, plant-based and beyond.
Our goal is simple: to help you create products that are consistent, safe and enjoyable, every day, at industrial scale.
What drives us
Innovation, quality, service, integrity, creativity and a strong commitment to sustainability are the key drivers of Castle Group®’s development.
These values guide our decisions, shape how we work together, and define the way we support our customers. By upholding them, we have built a reputation for dependable quality and forward-thinking solutions throughout the food industry.
Our Events & News
A world of ideas, innovations, and business opportunities – meet Castle Group®!
Explore our blog for articles on the food manufacturing industry, company news, and valuable insights.
Explore our collection of informative brochures details about our diverse range of products and services at.