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O. Mäder Schadstoffsanierung GmbH 

Oberburg · Since 2017

The core activity of O. MÄDER AG is the provision of services in the construction industry, particularly in the areas of: building construction, civil engineering, renovation and refurbishment, customer-specific masonry work, concrete demolition, drilling, cutting, breaking and pressing of concrete, machine and equipment rental, chimney renovation, sealing, coating work, industrial flooring, rock cleaning (work on climbing ropes), exploratory drilling for site investigation, steel structures, consulting and planning. The company thus offers a wide range of services in the construction industry and positions itself as a full-service provider in this field.

Otto Mäder Immobilien AG 

Oberburg · Since 1965

Possessionem GmbH 

Oberburg · Since 2021

Possessionem GmbH is a real estate agency offering sales, rental and valuation services for residential and commercial properties. The company provides bank-recognised market valuations, prepares exposés, organises viewings and supports owners and buyers through the transaction process while maintaining client search profiles for targeted matching.

PrincessAnna GmbH 

Oberburg · Since 2022

PrincessAnna GmbH operates a contact bar and studio offering erotic services such as massages with a happy end, escort services and private rooms. The website presents available models, prices and extra services and provides contact and booking information.

RR Property Alliance GmbH 

Oberburg · Since 2023

The core activity of RR Property Alliance is the development and realization of high-quality residential properties in Switzerland, particularly in the German-speaking region, as well as consulting and brokering insurance and financing solutions for private individuals. This also includes the purchase and sale of properties, the search for plots of land and properties, consulting on the financing of real estate projects, and the brokerage of insurance solutions.

Sandwichkönig Wegmüller & Leuenberger 

Oberburg · Since 2011

The core activity of the company 'Sandwichkönig' consists of the production and distribution of sandwiches, meter-long bread rolls and other additional product ranges. The company produces and delivers these products to customers, also offering a convenience store sale (sale of small, portioned food items) and a chauffeur service to deliver the products directly to the customers.

siebdruck adrian hostettler 

Oberburg · Since 2007

The company's core activity is screen printing, particularly the production of weather-resistant printed products such as stickers, signs and panels on various materials like metal, plastics, paper and self-adhesive foils.

viadiversa gmbh 

Oberburg · Since 2015

viadiversa gmbh provides consulting and coaching services focused on business creation, start‑up coaching, innovation management, marketing and work‑life design, as well as training and event delivery. Its sector expertise includes circular economy, energy, GeoIT/GIS and location analytics, spatial development and mobility, sustainable use of natural resources and social care.

Yuon Control AG 

Oberburg · Since 2020

The core activity of Yuon Control AG is the development of innovative solutions for optimizing thermal networks, particularly in the field of district heating supply. The company uses predictive AI technologies to increase the efficiency of heat networks and make heat supply more sustainable.

zahlvital GmbH 

Oberburg · Since 2009

The core activity of zahlvital GmbH encompasses two main areas: 1. **Financial Services**: The company offers accounting and financial optimization for clients, providing support in financial matters. 2. **Health and Wellness Services**: Zahlvital provides nutrition coaching and personal development to support clients in improving their health and well-being. The company positions itself as a provider of comprehensive services that consider both the financial and physical and mental health of its clients.