Founded in the family basement in 1939, Zoeller Pump Company is one of the oldest family-owned water pump manufacturers in North America. Headquartered in Louisville, KY, we proudly excel with fourth-generation leadership and an expanding workforce. Over the past eight decades, Zoeller Pump Company has established itself as a dependable leader in the wastewater industry. 100% of our pumps are tested underwater before leaving the factory to ensure a working product for each customer.