# Top 45 chemical companies in Wallonia Tamtam tracks 45 chemical companies headquartered in Wallonia. This list ranks all of them by number of employees on LinkedIn, led by Lhoist, AGC Glass Europe and Knauf Insulation. Their median headcount is 100. Half of them were founded in 1983 or later. The most common headquarters are Louvain-la-Neuve (2), Nivelles (2) and Wavre (2). The chemical sector in Wallonia features a mix of established industrial groups and specialized manufacturers. Companies like Lhoist and Carmeuse are global leaders in lime and mineral-based products, while AGC Glass Europe produces flat glass for various industries. Prayon specializes in phosphorus chemistry, and Knauf Insulation focuses on energy-efficient insulation materials. These firms represent a significant part of the region's industrial landscape, with several operating internationally. A notable pattern among these companies is their long history, with many founded in the late 19th or early 20th century. Lhoist was established in 1889, Carmeuse in 1860, and Heidelberg Materials Benelux in 1873. This indicates a mature industrial base with deep roots in materials processing and manufacturing. The companies are diverse, ranging from mining and glass production to advanced chemical manufacturing and environmental services, reflecting a broad industrial ecosystem. πŸ‡§πŸ‡ͺ Wallonia Β· 45 companies Β· Updated Nov 12, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [Lhoist](https://www.tamtam.ai/c/lhoist) (lhoist.com)
Global leader in lime, dolime, and minerals, operating in over 25 countries, with a focus on customer proximity and high-quality solutions Join our team! | Mining | πŸ‡§πŸ‡ͺ Limelette | 3,515 | 1889 | | 2 | [AGC Glass Europe](https://www.tamtam.ai/c/agc-glass-europe) (agc-glass.eu)
Producer and distributor of flat glass for building and automotive industries, as well as various other sectors including transport, solar power, and high-tech applications | Glass, Ceramics and Concrete Manufacturing | πŸ‡§πŸ‡ͺ Louvain-la-Neuve | 3,153 | | | 3 | [Knauf Insulation](https://www.tamtam.ai/c/knauf-insulation) (knauf.com)
Manufactures diverse insulation materials and solutions focused on enhancing energy efficiency and sustainability in residential, commercial, and industrial buildings worldwide. | Wholesale Building Materials | πŸ‡§πŸ‡ͺ Vise | 2,183 | | | 4 | [Carmeuse](https://www.tamtam.ai/c/carmeuse) (carmeuse.com)
Global manufacturer of lime, limestone, and mineral-based products for industrial and construction applications, as well as offering environmental benefits and equipment services | Mining | πŸ‡§πŸ‡ͺ Louvain-la-Neuve | 2,047 | 1860 | | 5 | [Prefer](https://www.tamtam.ai/c/prefer) (prefer.be)
Specializing in construction, this family-owned industrial group provides concrete blocks, slabs, railway sleepers, and custom precast concrete pieces for various building projects | Construction | πŸ‡§πŸ‡ͺ AWIRS (FlΓ©malle) | 1,190 | 1937 | | 6 | [Prayon](https://www.tamtam.ai/c/prayon) (prayon.com)
A global leader in phosphorus chemistry, manufacturing phosphate and fluorine solutions for various industries like food, water treatment, electronics, and pharmaceuticals | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Engis | 1,064 | | | 7 | [Magotteaux](https://www.tamtam.ai/c/magotteaux) (magotteaux.com)
Global supplier providing process optimization products, grinding media, and castings for mining, cement, and power industries through expert advice and sustainable manufacturing. | Mining | πŸ‡§πŸ‡ͺ Vaux-sous-ChΓ¨vremont | 966 | 1920 | | 8 | [Heidelberg Materials Benelux](https://www.tamtam.ai/c/heidelberg-materials-benelux) (heidelbergmaterials-benelux.com)
Leading manufacturer of cement, aggregates, and concrete in Belgium and the Netherlands with strong focus on environmental responsibility and carbon neutrality. | Wholesale Building Materials | πŸ‡§πŸ‡ͺ Braine-l'Alleud | 666 | 1873 | | 9 | [Bardahl Sadaps](https://www.tamtam.ai/c/bardahl-sadaps) (bardahl.fr)
A global company founded in 1954, specializing in manufacturing and distributing high-performance chemical products for various markets, including automotive, industrial, and DIY | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Tournai | 453 | 1954 | | 10 | [NICOLS](https://www.tamtam.ai/c/nicols) (nicols.eu)
Leading manufacturer of household and cleaning products in Europe, specializing in sponges, wipes, air fresheners, and toilet care products for private label and branded lines | Manufacturing | πŸ‡§πŸ‡ͺ Nivelles | 366 | 1947 | | 11 | [Chemviron](https://www.tamtam.ai/c/chemviron) (chemviron.eu)
An international manufacturer specializing in activated carbon products for water and air purification, offering innovative treatment systems and services globally | Environmental Services | πŸ‡§πŸ‡ͺ Feluy | 340 | 1902 | | 12 | [3B-the fibreglass company](https://www.tamtam.ai/c/3b-the-fibreglass-company) (3b-fibreglass.com)
Development and supply of fibreglass products and technologies for reinforcing thermoplastic and thermoset polymers with global manufacturing and R&D. | Glass, Ceramics and Concrete Manufacturing | πŸ‡§πŸ‡ͺ Herve | 335 | 2008 | | 13 | [Vandeputte Group](https://www.tamtam.ai/c/vandeputte-group) (vandeputte.com)
Processing flaxseed into linseed oil, manufacturing soaps and detergents, and producing vegetable oil derivatives for various industrial applications. | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Mouscron | 241 | 1887 | | 14 | [GALACTIC](https://www.tamtam.ai/c/galactic) (lactic.com)
Support manufacturers and distributors worldwide with natural antimicrobials, lactic acid derivatives, fermentation expertise, and tailored solutions for diverse industries. | Biotechnology Research | πŸ‡§πŸ‡ͺ Escanaffles | 213 | 1994 | | 15 | [Holcim Belgium](https://www.tamtam.ai/c/holcim-belgium) (holcim.be)
This organization focuses on building progress for humanity and the planet through innovation, sustainability, and collaboration for a greener and smarter world for all | Wholesale Building Materials | πŸ‡§πŸ‡ͺ Nivelles | 203 | 1911 | | 16 | [Carmeuse s.a.](https://www.tamtam.ai/c/carmeuse-s-a) (carmeuse.be)
Global producer of lime, high calcium limestone, and dolomitic stone for various industries, committed to sustainability and environmental impact | Mining & Metals | πŸ‡§πŸ‡ͺ Seilles | 183 | 1860 | | 17 | [Saint-Gobain BENELUX](https://www.tamtam.ai/c/saint-gobain-benelux) (saint-gobain-benelux.com)
A global leader in sustainable construction, designing, manufacturing, and distributing materials for the construction and industrial markets Committed to carbon neutrality by 2050 | Wholesale Building Materials | πŸ‡§πŸ‡ͺ Wavre | 169 | | | 18 | [Mactac Europe](https://www.tamtam.ai/c/mactac-europe) (mactacgraphics.eu)
A performance-driven innovator in the pressure sensitive industry with roots dating back to 1940s, specializing in manufacturing adhesive products globally | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Soignies | 131 | 1959 | | 19 | [Sopura, a part of Kersia](https://www.tamtam.ai/c/sopura-a-part-of-kersia) (kersia-group.com)
Global provider of customized cleaning, disinfection, and water treatment solutions for brewing, beverage, and food industries Trusted for expertise and quality results | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Courcelles | 127 | 1946 | | 20 | [Vesuvius Ghlin](https://www.tamtam.ai/c/vesuvius-ghlin) (vesuvius.com)
Specializes in developing solutions for controlling the flow of molten steel, including robotic casting, nozzles, plates, stoppers, and slide gate systems for regulating steel flow | Industrial Machinery Manufacturing | πŸ‡§πŸ‡ͺ Ghlin | 111 | | | 21 | [Fairoils Group](https://www.tamtam.ai/c/fairoils-group) (fairoils.com)
Leader in producing ethically sourced essential oils & vegetable oils for various industries Operations in Kenya, Madagascar, Eastern/Southern Africa, Balkans, and offices across Europe & Australia | Personal Care Product Manufacturing | πŸ‡§πŸ‡ͺ Ghislenghien | 101 | 2014 | | 22 | [Materia Nova](https://www.tamtam.ai/c/materia-nova) (materianova.be)
Develops sustainable materials and industrial processes through surface treatments, plasma technologies, and biopolymers while providing eco-design evaluations and technology scaling for industrial applications. | Research Services | πŸ‡§πŸ‡ͺ Mons | 101 | 2000 | | 23 | [Yara Tertre](https://www.tamtam.ai/c/yara-tertre) (yara.be)
A leading producer of essential plant nutrients, contributing to food security through sustainable mineral fertilizer production and environmental responsibility | Food and Beverage Manufacturing | πŸ‡§πŸ‡ͺ Tertre | 100 | | | 24 | [Delta Plastics](https://www.tamtam.ai/c/delta-plastics) (deltaplastics.be)
Manufacturing injection-moulded parts using modern injection-moulding technology. Equipped with presses from 30 to 150 tonnes and auxiliary equipment for automated, high-quality production. | Plastics Manufacturing | πŸ‡§πŸ‡ͺ Jumet | 78 | 1990 | | 25 | [PlastiService Group](https://www.tamtam.ai/c/plastiservice-group) (plastiservice.com)
Specialized supplier and processor of technical synthetic materials offering custom solutions, diverse products, and multisector expertise with strong customer service. | Plastics and Rubber Product Manufacturing | πŸ‡§πŸ‡ͺ Jumet | 68 | 1988 | | 26 | [EURENCO CLERMONT](https://www.tamtam.ai/c/eurenco-clermont) (eurenco.com)
Leading global producer of spherical powders for defense, security, sports, hunting, industrial tools, and ammunition reloading for enthusiasts worldwide. | Defense and Space Manufacturing | πŸ‡§πŸ‡ͺ Engis | 65 | 1850 | | 27 | [KLK Tensachem S.A.](https://www.tamtam.ai/c/klk-tensachem-s-a) (klkoleo.com)
Global manufacturer of anionic surfactants for home care and personal care markets Also offers contract manufacturing and Mass Balance products through RSPO certification | Chemical Manufacturing | πŸ‡§πŸ‡ͺ OugrΓ©e | 61 | 1992 | | 28 | [TIMAC AGRO BeLux](https://www.tamtam.ai/c/timac-agro-belux) (be.timacagro.com)
Specializing in plant and animal nutrition, the company offers patented quality agricultural products and personalized advice to farmers through constant innovation and partnerships | Farming | πŸ‡§πŸ‡ͺ Charleroi | 58 | | | 29 | [Gamma-Wopla / Smart-Flow](https://www.tamtam.ai/c/gamma-wopla-smart-flow) (gw-sf.com)
Develops, produces, and exports stackable, nestable, foldable plastic containers and pallets across Europe for various industrial sectors. | Plastics Manufacturing | πŸ‡§πŸ‡ͺ Mouscron | 54 | 1997 | | 30 | [Nanocyl SA](https://www.tamtam.ai/c/nanocyl-sa) (nanocyl.com)
A leader in manufacturing, developing, and commercializing Carbon Nanotubes (CNTs) and formulated products for high performance industrial solutions in various sectors | Nanotechnology Research | πŸ‡§πŸ‡ͺ Sambreville | 44 | 2002 | | 31 | [MINAFIN GROUP](https://www.tamtam.ai/c/minafin-group) (minafin.com)
Specializes in pharmaceutical, cosmetic, renewable, demanding, high-pressure, polymer, and green extraction chemistries with global industrial sites. | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Mont-Saint-Guibert | 37 | 2004 | | 32 | [Silox](https://www.tamtam.ai/c/silox) (silox.com)
Specialty chemical manufacturer with sales exceeding 450 million Euros annually, focusing on circular economy, green energy, and diverse business acquisitions | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Engis | 35 | 1983 | | 33 | [BEAL International s.a.](https://www.tamtam.ai/c/beal-international-s-a) (bealinternational.com)
Manufacturer and distributor of specialized construction products including colored coatings, decorative alternatives to concrete, and water repellents for various building applications | Wholesale Building Materials | πŸ‡§πŸ‡ͺ Fernelmont | 34 | 1974 | | 34 | [FERONYL sa](https://www.tamtam.ai/c/feronyl-sa) (feronyl.com)
Specialist in injection molding of polymers, composites, and metal alloys, providing development and manufacturing of technical components for land and air applications. | Plastics Manufacturing | πŸ‡§πŸ‡ͺ Mouscron | 30 | 1950 | | 35 | [Sobelcomp](https://www.tamtam.ai/c/sobelcomp) (sobelcomp.be)
Designs and manufactures composite material parts for clients across various high-value markets, including aviation, defense, and industrial sectors. | Plastics Manufacturing | πŸ‡§πŸ‡ͺ Loncin | 30 | 2006 | | 36 | [SIMTECH](https://www.tamtam.ai/c/simtech-tournai) (simtech.be)
Specializing in elastomer, plastomer, and coated fabrics-based products for various industries Offering solutions for glass laminating, hollow glass handling, flexible fuel cells, and collapsible rubber pillow tanks | Motor Vehicle Manufacturing | πŸ‡§πŸ‡ͺ Froyennes | 24 | 1992 | | 37 | [Minasolve Personal Care](https://www.tamtam.ai/c/minasolve-personal-care) (minasolve.com)
Supplier of innovative, nature-derived, and sustainable ingredients for the personal care industry, offering solutions for formulation challenges and meeting market trends | Personal Care Product Manufacturing | πŸ‡§πŸ‡ͺ Mont-Saint-Guibert | 21 | 2007 | | 38 | [Chimiderouil](https://www.tamtam.ai/c/chimiderouil) (chimiderouil.com)
Specializing in cleaning metal surfaces of industrial facilities, this company masters the entire process from product research and manufacturing to application of treatment techniques | Metal Treatments | πŸ‡§πŸ‡ͺ Ghlin | 19 | | | 39 | [Mertens Plastique SA](https://www.tamtam.ai/c/mertens-plastique-sa) (mertensplastique.be)
Specializing in custom plastic parts design, manufacturing, and installation for various industries, including chemicals, water distribution, pharmaceuticals, and more Constantly evolving to meet specific needs | Plastics Manufacturing | πŸ‡§πŸ‡ͺ Thimister-Clermont | 15 | 1994 | | 40 | [EUROPLEX](https://www.tamtam.ai/c/europlex) (europlex.be)
Leading provider of high-quality engineered plastic solutions through CNC machining and injection molding, specializing in a wide range of materials with a focus on precision and innovation | Plastics Manufacturing | πŸ‡§πŸ‡ͺ Nijvel | 12 | 1967 | | 41 | [IONICS Surface Technologies](https://www.tamtam.ai/c/ionics-surface-technologies) (ionics-group.com)
Specializing in surface technologies for various substrates, we provide innovative solutions for industries like automotive, architecture, and electronics, striving for excellence and sustainability | Business Consulting and Services | πŸ‡§πŸ‡ͺ Liers | 10 | 2014 | | 42 | [LyondellBasell](https://www.tamtam.ai/c/lyondellbasell) (lyondellbasell.com)
A global chemical industry leader creating sustainable solutions for everyday living through advanced technology, investments, and promoting a circular economy | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Tournai | 5 | | | 43 | [DEQUENNE CHIMIE](https://www.tamtam.ai/c/dequenne-chimie) (dequennechimie.be)
Manufacturer based in Belgium specializing in producing highly pure boehmite and pseudoboehmite alumina products | Chemicals | πŸ‡§πŸ‡ͺ Ghlin | 4 | 2007 | | 44 | [CHAPUT Caoutchouc](https://www.tamtam.ai/c/chaput-caoutchouc) (chaput-caoutchouc-belgique.com)
A family-owned company with a store offering various supplies and a factory producing custom molded and cut elastomer parts for small to medium series production | Plastics Manufacturing | πŸ‡§πŸ‡ͺ Gembloux | 3 | 1960 | | 45 | [Saint-Gobain Ecophon Belgium & Luxembourg](https://www.tamtam.ai/c/saint-gobain-ecophon-belgium-and-luxembourg) (ecophon.com)
This company develops, produces, and sells acoustic products and systems that improve employee well-being and performance in the workplace | Wholesale Building Materials | πŸ‡§πŸ‡ͺ Wavre | 1 | 1983 | ## How this list is built Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026. ## More company lists in Wallonia - [The largest companies in Wallonia](https://www.tamtam.ai/l/largest-companies-wallonia) (1,106) - [Multinational companies in Wallonia](https://www.tamtam.ai/l/multinational-companies-wallonia) (234) - [Companies with in-house R&D in Wallonia](https://www.tamtam.ai/l/r-and-d-companies-wallonia) (155) - [Manufacturers in Wallonia](https://www.tamtam.ai/l/manufacturers-wallonia) (151) - [Retail chains in Wallonia](https://www.tamtam.ai/l/retail-chains-wallonia) (110) - [Family-owned companies in Wallonia](https://www.tamtam.ai/l/family-owned-companies-wallonia) (82) - [Hardware manufacturers in Wallonia](https://www.tamtam.ai/l/hardware-companies-wallonia) (75) - [Food and Beverage Manufacturing companies in Wallonia](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-wallonia) (75) - [IT Services and IT Consulting companies in Wallonia](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-wallonia) (67) - [IT services companies in Wallonia](https://www.tamtam.ai/l/it-services-companies-wallonia) (67) - [Critical infrastructure operators in Wallonia](https://www.tamtam.ai/l/critical-infrastructure-operators-wallonia) (65) - [Consumer goods companies in Wallonia](https://www.tamtam.ai/l/consumer-goods-companies-wallonia) (59) - [Software Development companies in Wallonia](https://www.tamtam.ai/l/software-development-companies-wallonia) (58) - [Transportation, Logistics, Supply Chain and Storage companies in Wallonia](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-wallonia) (57) - [SaaS companies in Wallonia](https://www.tamtam.ai/l/saas-companies-wallonia) (54) - [Retail companies in Wallonia](https://www.tamtam.ai/l/retail-companies-wallonia) (52) - [Contract manufacturers in Wallonia](https://www.tamtam.ai/l/contract-manufacturers-wallonia) (51) - [Pharmaceutical companies in Wallonia](https://www.tamtam.ai/l/pharmaceutical-companies-wallonia) (45) - [Aerospace and defence companies in Wallonia](https://www.tamtam.ai/l/aerospace-and-defense-companies-wallonia) (44) - [Education providers in Wallonia](https://www.tamtam.ai/l/education-companies-wallonia) (43) - [Financial services firms in Wallonia](https://www.tamtam.ai/l/financial-services-firms-wallonia) (41) - [Distributors and wholesalers in Wallonia](https://www.tamtam.ai/l/distributors-and-wholesalers-wallonia) (39) - [Food and beverage companies in Wallonia](https://www.tamtam.ai/l/food-and-beverage-companies-wallonia) (38) - [Public sector organisations in Wallonia](https://www.tamtam.ai/l/public-sector-organisations-wallonia) (38) ## The same list elsewhere in Belgium - [Chemical companies in Belgium](https://www.tamtam.ai/l/chemical-companies-belgium) (146) - [Chemical companies in Flanders](https://www.tamtam.ai/l/chemical-companies-flanders) (87) ## The same list elsewhere - [Chemical companies in the world](https://www.tamtam.ai/l/chemical-companies-in-the-world) (6,503) - [Chemical companies in Europe](https://www.tamtam.ai/l/chemical-companies-in-europe) (3,081) --- Source: https://www.tamtam.ai/l/chemical-companies-wallonia