Headquartered in Mainz and family-owned for five generations, Werner & Mertz built its reputation on environmentally responsible manufacturing. Its flagship brand Frosch introduced the first phosphate-free household cleaning agent in 1986 and has since become one of Germany's most recognised sustainability-led consumer brands. The company launched its Recyclate Initiative in 2012 and has consistently used recycled plastics across its packaging, reaching one billion bottles made from 100% post-consumer recyclate. Production facilities are certified under the EU Eco-Management and Audit Scheme (EMAS), and company owner Reinhard Schneider was awarded the German Environment Prize in 2019. The professional division, operating under Green Care Professional and Tana Professional, covers sanitary cleaning, disinfection, kitchen hygiene, laundry hygiene, and building care for commercial customers including restaurants, hospitals, and industrial facilities.

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