The core activity of Ryser Eco Sàrl is the planning and implementation of projects in the field of sanitary facilities, fluid technology and renewable energies, particularly in solar thermal hot water preparation and rainwater utilization. The company also offers services in the areas of heating, ventilation, air conditioning and electricity, and can take on expert opinions and consulting activities due to its specialized knowledge and certifications (Maîtrise Fédérale, Expertisen, Concessionnaire agréé).