Based in Sarmenstorf, Switzerland, Retrotec is your reliable partner for custom technology solutions. From electrical engineering and IT networks to control systems and electronics, we bring your visions to life. With Swiss precision, extensive experience, and state-of-the-art technology, we deliver the highest quality standards to realize your projects efficiently and sustainably. Electrical Engineering: Tailored Solutions for Industrial Applications Retrotec provides bespoke control systems, energy management solutions, and custom machinery and prototypes. • Energy Efficiency & Security: Optimize your systems for sustainable energy use and transition to renewable resources with our expertise. • Custom Control Systems: Unique solutions designed to meet your specific needs, ensuring flexibility and operational excellence. Let us transform your challenges into solutions, from concept to commissioning. Electronics: Repair, Optimize, Innovate From developing innovative prototypes to restoring older systems, Retrotec offers comprehensive electronic services. • Retrofit: Modernize existing machines for enhanced performance and sustainability – an affordable alternative to new purchases. • Prototyping: Bring your product ideas to life with precision and attention to detail. • Repairs: Our extensive component inventory and reverse engineering expertise enable us to restore nearly any device. At Retrotec, innovation and sustainability are at the core of everything we do. Control Systems & Machinery: Custom-Made for Your Business Retrotec specializes in building customized machinery and control systems tailored to your exact requirements. • Specialized Solutions: From small series production to fully customized designs, we deliver what your business needs. • Industrialization Support: Transition smoothly from prototype to mass production with our expertise. Our mission is to exceed your expectations with intelligent engineering and top-tier quality. IT & Networks: High-End Technology for Maximum Performance In today’s digital age, Retrotec is your trusted partner for secure and high-performance IT and network solutions. • Data Centers: Efficient, scalable server rooms designed for maximum uptime and reduced operational costs. • Network Infrastructure: High-performance solutions featuring the latest hardware and connectivity technologies. • Cybersecurity: Safeguard your data with firewalls, VPNs, two-factor authentication, and more. Boost productivity, security, and speed with IT solutions designed by Retrotec. Why Choose Retrotec? • Swiss Quality: All our development, design, and manufacturing is proudly Swiss-made, ensuring precision and durability. • Sustainability: We prioritize eco-friendly processes and resource-efficient solutions. • Customer Focus: From initial consultation to delivery, our dedicated team supports you every step of the way. Start your next project with us! Visit our website at www.retrotec.ch to learn more about our services and capabilities.

Being an international player in paints and polymers with high added value, the Mäder group offers its customers global and innovative solutions in demanding markets such as Aeronautics, Railways, Automotive and Building. Anxious to be able to meet the needs of these markets, Mäder puts innovation at the heart of its strategy and thus devotes 10% of its turnover to R&D. Its research, in partnership with universities, is particularly focused on bio-sourced raw materials, green chemistry and reducing the impact of its activity on the environment. Backed by the expertise of its 850 employees, Mäder is now present in Europe as well as in China and India in order to support its customers in their international development. The group specializes in the following processing sectors: Paints, coatings and varnishes • Coil coating technology • UV and EB technology • Railway • ACE • General Industry (machines, devices, special surfaces and applications) • Wind energy • Aerospace • Telecommunications • Plastics Gelcoats and Resins We develop and produce unsaturated polyester resins, gel and top coats, adhesive resins, filled fire protection resins and special resins including the necessary surface finishing products and technologies. Paint raw materials This business line produces standard resins and additives based on polycondensation chemistry. The product range includes modified and unmodified alkyd and polyester resins for various applications in the paint and coatings industry. Toll manufacturing We develop and produce tailor-made products on behalf of our customers: • radiation curing resins • paint raw materials • prepolymers

The event service provider. The full-range event service provider for large and small events offers everything from the concept to the successful, professional implementation. For family celebrations up to international congresses. Up-to-date and well-maintained event technology (lighting, acoustics, multimedia, energy supply) and event material (tents, lounge / exhibition furniture, tables / chairs, glasses / bar, decoration, catering, stages, heaters, WC, transport / security, event technology) is available for outstanding, effective events. We are also happy to share our more than 35 years of experience as consultants, experts, project managers or event coaches. For further information please click here. For a non-binding consultation click here!

Ich kannte schon seinen Vater absolut seriös und kompetent. Da passt der Spruch: Qualität hat einem Namen

Your construction company for remodeling, renovation, plastering, and facade restoration – serving Zurich, Thalwil, Cham, Langnau am Albis, and beyond with excellent references throughout Switzerland. For over 25 years, we have been experts in new construction, remodeling, and renovation. Our experienced team offers comprehensive services for clients in all municipalities of the Canton of Zurich, the surrounding regions of Aargau, Zug, and Lucerne – and beyond, with top references throughout Switzerland. No matter where your project is, we are here for you! Our services at a glance: • Remodeling and renovation of residential and commercial properties • Plastering, drywall construction, and customer masonry • Facade restoration and energy-efficient exterior insulation • Excavation work, core drilling, and concrete restoration • Demolition, additions, and new constructions • Customized kitchen and bathroom remodeling • Tiling and scaffolding Why LM Bau und Renovationen? We stand for top quality, timely execution, and personalized service. As a client, you benefit from our many years of experience and cost-conscious approach – for results that impress. Our service areas: With locations in Zurich, Thalwil, Cham, and Langnau am Albis, we serve clients in all municipalities of the Canton of Zurich, as well as the regions of Aargau, Zug, and Lucerne – and beyond. Thanks to our outstanding references, we are your reliable partner for remodeling, renovation, and construction projects throughout Switzerland. Start your project now! 📞 044 724 13 10 📍 LM Bau und Renovationen GmbH 🔗 lm-bau-renovationen.ch We look forward to realizing your construction project with precision and passion – no matter where in Switzerland you need us!