The core activity of Eymannwerks GmbH encompasses three main areas:
1. **Development and distribution of mountain bike infrastructure**: In particular, the 'Flow Gate', a pasture fence crossing that allows mountain bikers to ride over pasture fences without dismounting, while keeping animals out.
2. **Craft services as a customer mason**: The company offers professional services in the field of masonry, concrete, new construction and renovations of kitchens, apartments and toilet facilities in the Grindelwald area.
3. **Bike guiding and tourism**: As a bike guide, the company offers guided mountain bike tours for beginners and experts with mountain bikes or e-bikes and develops mountain bike destinations.