Bigadan A/S is a Denmark-based biogas company that develops, designs, builds, and operates anaerobic digestion plants. Its facilities convert organic residues from industry, agriculture, and municipalities into biogas, which can be upgraded to biomethane for injection into the natural gas grid or used for power and heat generation.
The company also manages the downstream use of digestate as biofertilizer, supporting nutrient recycling and circular resource flows. Bigadan provides turnkey project delivery and operations and maintenance services, and collaborates with energy and process-industry partners on industrial symbiosis and sustainability initiatives in Denmark.