Welcome to KOCH Group AG. With over 300 employees at five locations in Switzerland, we have been providing innovative products, expert advice and tailored services for decades. Our range includes over 100,000 items – from fittings and tools to machines, security technology and factory equipment. Our strengths at a glance: • Range: Over 100,000 items for furniture production, windows, doors, fastening technology, security technology and much more – all tailored to your needs as a tradesperson. • Online shop : A modern shopping experience with easy navigation, detailed product descriptions, CAD data and customisable interfaces for business customers. • Logistics: Efficient processes in our 14,000 m² logistics centre guarantee fast and flexible deliveries – individually tailored to your requirements. • Security technology: Planning, realisation and maintenance of locking systems and access controls by our experienced specialists. • Trade stores: In Bern, St. Gallen and Wallisellen, we offer practical advice, pick-up options and an inspiring exhibition for those interested in building. With the latest technology, dedicated employees and a comprehensive range of services, we create sustainable added value for our customers. Whether at our locations or online – professionals come to KOCH .

Thanks to our extensive experience, you'll benefit from meticulous, high-quality work carried out by high-performance teams in the field of heating, ventilation and sanitary installations. HEATING Systems for new or existing installations. We have retained the ability to work with old materials, in particular black steel, but also all those available on the market. VENTILATION Ventilation and air-conditioning systems for all types of public or private buildings (cinemas, restaurants and cafés, kitchens, administrations, hospitals, rental properties, etc.). SANITARY Our main speciality is sanitary conversions for flats and new buildings. We remain at your disposal for any information you may require to draw up a personalised estimate. MAINTENANCE CONTRACTS We maintain new and existing installations to ensure that they run smoothly. Ask us about a maintenance contract today, so you can avoid potential breakdowns. TROUBLESHOOTING We have a fast, reliable breakdown service available 24/7 by telephone for all heating, ventilation and sanitary installations.

Our company is renowned in the field of fire stopping and fire protection. We specialise in the design, installation and maintenance of fire protection systems for a wide range of buildings, from single-family homes to industrial complexes. Our team of qualified experts includes certified technicians and experienced professionals in the field. We put our expertise at our customers' service to ensure customised solutions that meet their specific fire safety needs. We provide reliable solutions that comply with current standards. Our commitment to quality is reflected in our use of high quality, AEAI-certified materials, and our adherence to agreed deadlines and budgets. We are proud of our reputation for excellence. We strive to provide innovative and effective solutions to protect the lives and property of our customers.

Blanc SA was founded in 1945 and employs over 200 people in French-speaking Switzerland. The services offered by Blanc SA include: • All types of cleaning (windows, facades, shampooing, floor treatment) • Facility maintenance (cleanrooms, commercial spaces, fitness centers, offices, professional kitchens) • Commercial premises • Concierge service • Industrial buildings • Medical areas • Fitness maintenance • Food-processing surface cleaning Our mission is to clean spaces using the best available technologies to ensure optimal results in minimal time – we understand that keeping a store open only for cleaning is costly. Administrative Areas We create a customized service plan based on your needs, taking into account furniture, surfaces, and office layout. Our staff works at the most convenient time for you, ensuring no disruption to your operations. Industrial Buildings Production staff may not prioritize cleanliness the same way we do – but they are essential to production. Leave them at their stations and let us take care of all types of surface cleaning. Our Services Post-construction cleaning, apartment cleaning, facade cleaning, shampooing, spring cleaning, window cleaning (private and professional), stone treatment, marble crystallization, water damage cleaning, fire damage cleaning, urban cleaning, public institution cleaning, upholstered furniture cleaning, anti-spider treatment

Solutions tailored to your projects. Our services Installation and maintenance of solar panels Maintenance and repair of existing solar systems Turnkey solutions Roof and panel cleaning Building technology Our other building services offers Lightning conductor installation Minor sanitary work