Technical Consulting & Engineering in
Rüschlikon

Exergie AG

Since 1989 · 1–10 empl.

Exergie AG provides energy consulting services including energy analyses, concepts and optimisation for new and existing buildings. Its services include energy balances and simulations, thermal imaging, building physics, technical system planning and sizing, support for certifications (e.g. Minergie), subsidy applications, tendering and construction follow-up, as well as targeted audits and measures for SMEs and public-sector clients.

Heptagon Oy, Espoo (SF), Zweigniederlassung Rüschlikon/Zürich

Since 2000 · 1–10 empl.

The core activity of Heptagon Photonics is the development and manufacturing of micro-optical modules and systems, particularly at the wafer level, for various applications such as consumer electronics, automotive, medical and industrial. This includes the production of wafer-level optics, micro-optical modules, imprint optics, diffractive and refractive optics, micro-lens arrays, diffusers, and optical sensor and illumination modules.

VERSUIT GmbH

Since 2016 · 1–10 empl.

The core activity of Versuit Engineering is the planning and consulting of building technology, particularly in the areas of heating technology, ventilation and air conditioning technology, as well as sanitary technology for construction projects.

hausgedacht ag

Since 2025 · 1–10 empl.

hausgedacht ag provides architectural services as well as construction management and client representation. The company works project by project, with an emphasis on place, people and materials, and supports building projects from analysis and design through to realisation.

vdn GmbH

Since 2016 · 1–10 empl.

The company provides services in the field of telecommunications and network construction, particularly for electricity supply companies (EVU) and private customers. The core activities include: project and construction management of network facilities, including fiber optic networks, route construction, transformer stations and shafts; consulting and support in planning, construction and maintenance of network facilities; safety concepts, training and personnel training; warehouse management, procurement and tendering; coordination and synergies between different network levels and facilities. The company supports EVU and private customers in the implementation of large supply systems and offers services at network levels 5, 6 and 7.

meecon GmbH

Since 2021 · 1–10 empl.

The company provides consulting services in the field of electrical and fire protection planning for builders, investors, project developers and the public sector. The core activities include: electrical planning and consulting, fire protection planning and consulting, competition support and consulting, quality assurance and control, feasibility studies and analyses, strategic consulting for electrical projects, condition analyses of electrical systems, and technical due diligence. The company works independently and neutrally as a consultant and offers long-term partnerships.

QuantiValis GmbH

Since 2025 · 1–10 empl.

QuantiValis GmbH provides services in pharmaceutical quality management as well as IT compliance and software consulting in GMP and GDP environments. The company supports pharmaceutical and life science organisations with regulatory and technical tasks, including FvP and quality assurance mandates, computerized systems validation, and QMS setup.

WRG AG

Since 1978 · 1–10 empl.

Iso Umweltschutz AG

Since 1980 · 1–10 empl.

Arva AG

Since 1986 · 1–10 empl.

Automobiltech. Büro Hans R. Willimann, Inh. Kurt Grass

Since 1997 · 1–10 empl.

ECOBEL GmbH, Biotechnik und Umweltsysteme

Since 1997 · 1–10 empl.