Employees of Solum Gruppen are active in a number of professional networks:

• ECN (European Compost Network) 
• ISWA (International Solid Waste Association)
• CEN (The European Committee for Standardization), Technical Committee 223 (Soil improvers and growing media)
• DAKOFA (the Danish Competence Centre on Waste) (Solum Gruppen is represented in 5 working groups)
• SFAM - Society for Applied Microbiology (UK)
• AFOR - Association for Organics Recycling (UK).
• REA - Renewable Energy Association (UK) and Rea Biogas.
• ABDA - Anaerobic Digestion & Biogas Association (UK).
• CIWM - Chartered Institute of Waste Management (UK).
• CRE - Composting Association of Ireland.