Holding Companies

Oswald Haller AG 

Frauenfeld · Since 1967

Oswald Haller AG provides building-envelope services including consultation, planning and execution of roofing, façades and sheet-metal work. Offerings also include photovoltaic systems and battery storage, VELUX roof-window installation, energy-related renovations, maintenance and support with energy advice and funding applications.

OWI Holding GmbH 

Recherswil · Since 2024

OWI Holding GmbH provides engineering and project services for plant and apparatus construction and metalwork, covering piping, sheet-metal and profile constructions, vessels, apparatus and prototypes. It offers 3D-CAD design, project management and procurement consulting and coordinates supplier networks to support realization of one-off and series components.

Panetta SA 

Geroldswil · Since 1997

Panetta SA produces handmade sandwiches and wraps. The company supplies fresh, hand-assembled sandwiches to retail, convenience, system-gastronomy and vending channels, and offers private-label production and co-branding with brands such as Malbuner and le Parfait. Production follows recognized hygiene standards; Panetta holds IFS “higher level” certification and provides batch traceability.

Panetta Holding AG 

Zug · Since 2002

Panetta Holding AG manufactures handmade sandwiches, wraps and related convenience bakery products for retail, foodservice and vending. Services include private-label production and co-branding with brands such as Malbuner and le Parfait; production is carried out under recognised hygiene standards and holds IFS certification.

PGF Group Sàrl 

Sion · Since 2023

PGF Group Sàrl provides fiduciary services focused on accounting, tax return preparation and administrative support for individuals and businesses. Its offerings include payroll and VAT management, tax advice, startup support (budgeting, business plans, company domiciliation) and assistance with sourcing insurance.

Plafondnova Holding AG 

Rotkreuz · Since 2023

Plafondnova Holding AG provides ceiling and wall system solutions, including partition systems, ceiling claddings, acoustic treatments, and cooling/heating ceilings. The company designs custom system solutions, manufactures components in-house and performs professional installation of the systems.

PMB Holding SA 

Boncourt · Since 2013

PMB Holding SA is a construction and civil engineering firm offering services such as site surveys and layout, transport and handling, and delivery of turnkey projects.

Polydec Holding SA 

Biel/Bienne · Since 2018

Polydec Holding SA produces microcomponents by precision turning and micro‑turning for medical, watchmaking, automotive and electronics applications. Its production range covers simple Escomatic parts and complex CNC‑turned components (5–10 axis), with diameters from 0.05 to 6 mm, tolerances around ±2 µm and lengths up to 80 mm.

Proverit Glas Holding AG 

Zollikofen · Since 2004

Proverit Glas Holding AG is a glass and metal construction company offering products such as fire-protection glazing, shower enclosures, balustrades, kitchen splashbacks, mirrors, partitions, doors and display counters. Its services also include metalwork for facades, roofs and windows, as well as repairs, burglary protection, maintenance, planning and film/foil application.

Realstone Holding SA 

Lausanne · Since 2013

Realstone Holding SA manages real estate investment vehicles and operates collective investment products, including listed real estate funds and non-listed funds reserved for qualified investors. The firm also offers services such as property contributions into funds (swap), sale-and-leaseback transactions and asset/portfolio management, and discloses sustainability and governance practices using frameworks like the UN Global Compact, GRI and GRESB.

REMA van CaSi GmbH 

Näfels · Since 2016

REMA van CaSi GmbH sells cleaning chemicals, cleaning machines and related supplies and operates an online shop serving professional building cleaning.

ROKU Invest AG 

Rorschacherberg · Since 2024

ROKU Invest AG is a real estate services firm offering acquisition and project development, property sales, and rental and property management. The company purchases and renovates properties, provides property administration and letting services, and presents itself as a regional real estate partner in Eastern Switzerland.

RONDA Immo AG 

Lausen · Since 2017

RONDA Immo AG manufactures mechanical automatic and quartz watch movements and provides related B2B services, including complete watch assembly and technical customer support via the Ronda Time Center.

Rota Holding AG 

Wädenswil · Since 2019

Rota Holding AG is a company for tile and surface coverings that provides planning, sample selection, installation and maintenance services for wall and floor finishes. The company works with ceramic, natural stone, mosaic and engineered stone for interior and exterior applications, including repairs and cleaning.

Schwedenfarben Holding GmbH 

Ruswil · Since 2024

Schwedenfarben Holding GmbH supplies the modern 'Schlammfarbe' (FALU VAPEN) for wooden surfaces and offers related products and accessories for exterior and interior use. The paint is a diffusion-open water/oil emulsion suitable for wooden façades, soffits and other applications, and the company provides consultation, technical datasheets, colour cards and services for sampling and project execution.

Spuhler Holding AG 

Fisibach · Since 2014

Spuhler Holding AG carries out trenchless pipeline installation and utility undercrossings. Using specialised machines and techniques such as in‑hole/auger boring, flushing drilling, guided pressing, ramming, pipe bursting, ground‑rocket drilling, ploughing and vacuum excavation, the company installs sewer, water, gas, communications and power lines.

Steffen Wine Holding AG 

Utzenstorf · Since 2016

Targa-Tech Holding AG 

Trübbach · Since 2011

Targa-Tech Holding AG manufactures precision components and assembles complex assemblies, specialising in CNC turning, CNC milling, welding and assembly. It provides additional services such as leak testing, metrology, laser engraving, pad printing and cleanroom (ISO‑7) production for customers in the vacuum and semiconductor industries.

Tech-Insta Holding SA 

Taverne · Since 2005

Tech-Insta Holding SA provides design, installation and maintenance of heating, cooling, air‑conditioning, ventilation and sanitary systems as well as water treatment solutions for civil buildings and industrial facilities. The company also offers maintenance services, energy analyses, proposals for renewable energy sources and facility-management services via partner organisations.

Tognola Group Holding SA 

Lugano · Since 2015

Tognola Group Holding SA is a real-estate group providing services from architectural design and interior design to general contracting and turnkey construction. Its activities include the acquisition, development and construction of residential and commercial properties, using BIM and processes that address environmental impact and sustainability.