The core activity of cen services encompasses two main areas: 1. **Cleaner Production and Energy Efficiency**: The company provides consulting services in the field of resource efficiency, environmental education, and circular economy. It supports SMEs in conducting sustainability analyses, cost optimization, and implementing environmentally friendly production processes. 2. **Non-Profit Management**: cen services provides services for non-profit organizations in the areas of business management, marketing, communication, and project management. It supports consulting on building and changing organizational structures, strategies, and volunteer management.