Since 1973, Koester has provided innovative products and industry leading process solutions for the water and wastewater treatment industries. Our business began with equipment based solutions and in support of our dedication to customer service, has evolved to include engineering, construction, operations and finance services. Koester’s unique collection of services facilitated the development of sustainable business models incorporating true lifecycle costing matched to revenue sourcing.

Koester has the experience
to deliver proven
Water Treatment
results in your market.