ACO group
ACO Group is a family-owned, global WaterTech company founded in 1946, specializing in holistic stormwater and wastewater management solutions.
Last updated September 16, 2026
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Overview
ACO Group is a family-owned, global WaterTech company with decades of experience in rainwater and wastewater management. Founded in 1946, ACO operates worldwide with subsidiaries and production sites in more than 50 countries. The company develops solutions that collect, clean, hold and reuse water, contributing to resilient cities, infrastructure and environments. Led across generations by the Ahlmann family, ACO employs around 5,000 people worldwide.
History
ACO Group was founded in 1946 as a family-owned business. It has grown into a global WaterTech company with decades of experience in rainwater and wastewater management. The company is led across generations by the Ahlmann family; today, Hans-Julius Ahlmann and his son Iver Ahlmann together represent the present and future of the ACO Group. ACO operates worldwide with subsidiaries and production sites in more than 50 countries.
Products and positioning
ACO leads the way in responsible water management, with deep engineering expertise and a strong understanding of local markets.
ACO WaterDome
Product honoured with an iF Design Award.
ACO ClimateBoxx
Product honoured with an iF Design Award.
ACO Water Cycle
Holistic system integrating solutions to Collect, Clean, Hold and Reuse water.
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