Sustech, as an independent engineering firm for energy and building technology, offers all services from energy consulting to planning and monitoring. We support builders in residential areas as well as in administration, schools, nursing homes, gastronomy, industry, and more. Our primary goal is to optimize sustainability and comfort. • GEAK • Energy Consulting • Building Physics • HVAC Planning • Fossil-Free Heating • Photovoltaic Planning

Electrical planning with passion. Our company accompanies you from the planning of complex technical systems and installations to commissioning. We are happy to pass on our expertise to you. In an all-round carefree package that guarantees quality. Our services related to building electrical engineering Are you looking for a competent partner in building electrical engineering? Whether new construction, conversion or renovation - we advise you individually and purposefully. We accompany you and your project from A to B and beyond. From the preliminary project to the tender to operation. Together with you we plan your project, monitor deadlines and budget. On request, we will be happy to take over the coordination of the specialist construction or the management of the building owner. We live electrical engineering - and understand planning, building and management as a holistic process. As an independent engineering office, we offer individual consulting and planning services for electrotechnical building equipment. Our offer is particularly suitable for builders, investors, general planners and architects in the following sectors: Chemistry, pharmaceuticals, biotechnology Banks, Insurance, Telecom, Services Private and public administrations industrial and commercial buildings data center What we do: high-voltage systems Medium voltage systems, transformer stations low-voltage distribution systems Emergency power supply systems, backup power systems and UPS systems substation control systems busbar and cable systems Power installations, installation systems Lighting installations, lighting controls low-voltage installations Audio and visual systems Room controls and bus systems Communication systems (image, data, voice) IT, WAN- LAN systems Security systems (fire, value protection and intrusion) Lightning protection and EMC Specialist site management for technical building equipment The TGA specialist construction management ensures that the process and building technology systems are implemented according to the specifications of the planner by the executing contractors and installers. To ensure the overall function, we carry out an integrated test. This enables us to show the interactions between the various trades, systems and system parts and to rectify any defects immediately. I

G. Stierli AG – Your Expert for Sanitary, Plumbing, and Heating Services in Dietikon, Limmattal, Zurich, and Aargau G. Stierli AG is your reliable partner for sanitary work , heating solutions , and plumbing services in the regions of Dietikon , Limmattal , Zurich , and Aargau . Since its inception, brothers Richard and Roland Stierli have been actively involved in the company, leading a dedicated team of professionals. With their extensive experience, they successfully execute diverse and demanding projects. Our strengths lie in our high level of customer service , comprehensive expertise , and punctuality – qualities that are highly valued by our clients and foster long-term customer loyalty. As an established SME , we offer professional services in the following areas: • Sanitary Installation and Repairs • Heating Construction and Maintenance • Plumbing Services • Repair Services for Sanitary and Heating Systems We are excited to support you in all areas of sanitary technology , heating systems , and plumbing work . Trust in our experience and expertise for your next project.

Change Management Ltd stands for a sustainable orientation of your company. "Sustainable future" for your business is our motivation. We help you to make the right adjustments and achieve your company goals: in a human, organizational, technological and economical way (ESG)