INNOVATION & SUSTAINABILITY MEETS ELEGANCE Experience plumbing and roofing of the new era. Experience now OUR SERVICE Repair Service Remodeling & Planning Bathroom Remodeling Drain Cleaning Boiler Descaling Roofing Flat Roof Roof Service Customer Service Maintenance & Inspection Energy Consulting Rainwater harvesting Solar Technology Green Roofing Thermal Insulation Façade Renovation Chimney Repair Burglar protection Turnkey Construction Consulting & Planning.

Gruner All according to plan. Gruner is a leading engineering, design and planning consultancy in the construction industry. In the business areas buildings, infrastructure, and energy, we support our private and public clients in all project phases from strategic planning through construction to commissioning and management of buildings and infrastructure. In doing so, we combine services from a comprehensive range of competencies such as structural design, geotechnics, general planning, building services, energy production and distribution, road and rail construction, civil engineering, environment, safety, security, and spatial planning in order to offer optimal and sustainable solutions. With more than 1.100 highly qualified employees in over 30 offices in Switzerland, Germany, Austria, Serbia, Georgia, Turkey and Tajikistan, as well as at countless project locations worldwide, we are always close to the customer and where development and construction are taking place. Thanks to interdisciplinary cooperation, we set new standards in engineering methods and the application of digital processes. We are constantly evolving in step with our customers. Gruner is an independent family business headquartered in Basel/Switzerland and we are proud that we have been providing innovation and inspiration since 1862.

Danke für die zuverlässige und stets ausgezeichnete Arbeit!

SENN AG is a leading family-owned company with almost 70 years of experience in the fields of steel construction, metal construction, sheet metal and stainless-steel center, emergency power systems, and crane & transport. At the company headquarters in Oftringen, strong performances are achieved to the advantage of our customers through the use of state-of-the-art production facilities. Innovation and a sense of responsibility towards business partners and employees characterize the corporate culture of our family business, which is currently led by the second generation.

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