Dutch family-owned company specializing in innovative water treatment, renewable energy, and environmental solutions for over 35 years. Expertise in biogas production, anaerobic digestion, nutrient recovery, and wastewater treatment technologies.

Where is Colsen located?

Colsen is headquartered in Netherlands.

What energy sectors does Colsen operate in?

Colsen operates in Biogas, Energy Storage.

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Colsen

Netherlands

BiogasEnergy StoragePrivate

Founded 1988

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About

Founded in 1988, Colsen is a private headquartered in Netherlands specializing in Biogas, Energy Storage.

Colsen is an innovative family-owned enterprise that has developed expertise in water management, renewable energy, and environmental solutions. The company operates across consultancy, project realization, and research & development. Key technologies include thermophilic sludge digestion for biogas production, BIDOX biogas desulfurization, AMFER nitrogen stripping for nutrient recovery, and NAS-ONE wastewater treatment. Colsen has expanded internationally, acquiring Spanish company Ahidra and establishing operations in the United Kingdom. The company focuses on solving environmental bottlenecks through sustainable technologies, particularly in waste treatment, wastewater management, and circular economy applications.

BiogasWastewater TreatmentNutrient RecoveryCircular EconomyWater TreatmentEnvironmental SolutionsSustainable EnergyAnaerobic Digestion

Headquarters

Netherlands

Founded

1988

Company Type

Private