Holding company in
Zofingen

Erhard Keller Verwaltungs AG

Since 1965 · 1–10 empl.·4.8(23)

Erhard Keller Verwaltungs AG provides electrical installation services for industrial, commercial, service and residential buildings and offers solutions for lighting, communication systems and smart home integration. The company also operates a specialist shop and provides services such as emergency support, security checks and telephone & internet solutions.

StWZ Energie AG

Since 2001 · 11–20 empl.·4.2(31)

StWZ Energie AG is an energy services provider offering electricity, gas, heat and water services along with associated products and tariffs. The company also provides building-technology services (electrical installations, heating, sanitary, solar systems, storage, charging solutions) and operates telecommunications services via Quickline.

Precision Holding AG

Since 2022 · 1–10 empl.·5.0(10)

Precision Holding AG provides metrology and calibration services and develops and manufactures precision measurement systems. The website states accreditation as an SCS calibration laboratory to ISO/IEC 17025 for length, straightness, parallelism, angles, flatness and machine inspections; listed offerings include calibration artefacts, height gauges, measurement software and customised measurement solutions.

Wülser Holding AG

Since 2001 · 1–10 empl.·4.4(5)

Wülser Holding AG is a building services company. It provides services in heating and cooling, ventilation and air conditioning, plumbing, roofing, sheet metal work, and customer service, covering projects from consulting and planning to installation and maintenance.

Siegfried Holding AG

Since 1904 · 11–20 empl.

Siegfried Holding AG is a contract development and manufacturing organization (CDMO) serving the pharmaceutical industry. It produces active pharmaceutical ingredients and finished drug products and provides integrated development and manufacturing services for drug substances and products, including oral solid dosage forms, steriles, ophthalmics, inhalation products and related technologies.

IRC Unternehmungen AG

Since 2012 · 1–10 empl.

IRC Unternehmungen AG provides marketing, administrative services (including bookkeeping, payroll and VAT accounting), IT sales/installation and support, and rents a moving lift. Services are delivered by specialized in‑house teams for businesses and private clients.

Reamtec Holding GmbH

Since 2014 · 1–10 empl.

Reamtec Holding GmbH manufactures precision reaming tools, modular reaming heads and cutting rings, solid carbide and cermet tools, and brazed special tools, and supplies compensation/floating holders.

IAR Group Holding AG

Since 2021 · 101–500 empl.

IAR Group Holding AG is an industrial automation and robotics company. It engineers, builds and delivers customized machines, including solutions for assembly automation, inspection and testing, robotic integration and converting. The company also provides maintenance, spare parts, retrofits and Industry 4.0 services.

Sandmaster Holding GmbH

Since 2023 · 11–20 empl.

Sandmaster Holding GmbH develops and supplies sandblasting units and related spare parts and services, including blasting media, customer service and contract blasting for industries such as medical technology, PVD surface treatment, machine building, restoration and precision mechanics.

Binder Holding AG

Since 2013 · 11–20 empl.

Binder Holding AG acts as an investor and owner of various companies and additionally provides its own consulting services. Its services include consulting on leadership, strategy, company development, company sale and succession, sales support and administration, marketing including social media and event organization, and personnel training.

STAGInvest Holding AG

Since 2011 · 1–10 empl.

Jost Unternehmungen AG

Since 2018 · 1–10 empl.