- Stonemasonry gravestone and construction (window sills, stairs, floor coverings, etc.) - Laying tiles - Restoration of natural stone and bricks (façade restoration, restoration of monuments, etc.)
- Development of software solutions for companies, for private and public clouds, for smartphones, tablets and wearables, for vehicles, Industry 4.0, the Internet of Things and digital business…
- Trading in lubricants – trading in agricultural and municipal technology and spare parts of any kind for agricultural and municipal technology and vehicles as well as services associated therewith…
- General contractor services - furniture construction & system gastronomy - production and assembly of interior fittings - fire protection & dry construction
- Development, manufacture and import and export of technical extruded parts made of aluminium and aluminium alloys, copper and steel, turned parts made of steel, stainless steel and non-ferrous…
Jahn GmbH Bandagen aus Königsee in Königsee
the production, distribution and trade of medical supply store products and the execution of industrial sewing work.
Jahn Gebäudemanagement GmbH in Zeulenroda-Triebes
is the execution of glass and building cleaning work of all kinds in buildings such as schools, hospitals; Indoor swimming pools, shopping centres,…
- Development of customer-specific opto-electronic modules for the entertainment electronics and automotive industries up to series maturity and industrialisation.
- Development, production and distribution of products for tele- and data communication, in particular optical fibers and their pre-products, as well as the marketing of know-how in these areas.…
