Crafts & Trades

Techron AG 

Etzgen · Since 2006

Techron AG is part of Jehle Engineering AG, and its competencies and contacts are consolidated on the Jehle AG website. Jehle provides complete solutions for customised metal and plastic components, including toolmaking and mould making, stamping and forming, injection moulding, welding and joining, surface treatment and assembly.

TM Peinture Ömer Can 

Ardon · Since 2023

The core activity of TM Peinture is to provide services in the field of painting and renovation, particularly in the execution of works such as: interior and exterior painting, house insulation, renovation of interior spaces, creation of special plasterwork (Crépi), decoration of living and working spaces, and Cloison, Faux plafonds, Ponçage. The company also offers personalized solutions to customers and carries out work with professional results and high quality.

Walter Weber AG Heizung-Lüftung 

Gelterkinden · Since 2016

Witschi AG, Malergeschäft, Bern 

Bern · Since 1974

Witschi AG, Malergeschäft, Bern provides painting and plastering services including colour consultation, interior and exterior painting, spray coating, decorative painting, façade renovation, wallpapering, graffiti removal and mould remediation. The company handles projects from consultation and transparent quotations through to execution and complies with SIA standards.

SQ Haustechnik GmbH 

Oensingen · Since 2025

SQ Haustechnik GmbH is a building services company providing sanitary, heating and ventilation services including planning, installation, maintenance and repair. Services cover bathroom planning and renovations, installation and servicing of heating systems (oil, gas, wood and renewable technologies) and ventilation systems with heat recovery, cleaning and upkeep.

wiwü GmbH Elektro- und Telefonanlagen 

Winterthur · Since 2002

wiwü GmbH Elektro- und Telefonanlagen performs electrical service and repair work and electrical installations for new builds and renovations, and offers e‑mobility solutions, distribution boards, building automation (KNX), telephone systems (PBX), network installations, lighting, planning and periodic inspections.

Zaugg AG Rohrbach 

Rohrbach · Since 2004

Zaugg AG Rohrbach is a construction and logistics company providing timber construction, joinery, steel construction and sheet-metal work. Its services also include crane operations, heavy and special transports, aerial work platforms, industrial relocations, ground protection, and project engineering, planning, realization, rental and emergency support.

ZWIWO AG 

Neftenbach · Since 1969

ZWIWO AG provides electrical installation and maintenance services, including service and repair work, electrical installations for new builds and renovations, E‑Mobility solutions, distribution panels, KNX building automation, structured cabling, network installations, telephone systems (PBX), lighting, and planning and consulting for electrical installations.

3-Plan AG 

Winterthur · Since 1993

3-Plan AG is an engineering and consulting firm focused on building services and energy for the built environment. It delivers project development, technical building services planning (electrical, heating, ventilation, cooling, sanitary), specialist coordination, BIM/VDC services, prefabrication (Planer Plus), and support for operation and project management.

3-Plan Haustechnik Violka + Partner AG 

Kreuzlingen · Since 1999

3-Plan Haustechnik Violka + Partner AG is an engineering and consulting firm for building services and energy in building construction. Its services include technical development, TGA planning (electrical, heating, ventilation, cooling, sanitary), BIM/VDC-based modelling and operational services such as measurements, analyses, optimizations and digital facility management.