5 Biggest Plumbing Companies in the World

4. Kingfisher plc (OTCMKTS:KGFHY)

Latest Twelve Month Revenue Estimate: $18.68 billion (1GBP = 1.23USD)

Kingfisher plc (OTCMKTS:KGFHY) is one of the largest plumbing companies in the world. It is also one of the few on our list that is taking an active approach toward making and selling products for sustainable homes and living. Kingfisher plc (OTCMKTS:KGFHY) is aiming to bring in at least 60% of its revenue from sustainable product sales by 2025 and has introduced aerating regulators to its kitchen and water taps to restrict water flow and improve conservation. The firm also sells standard plumbing products such as different taps and sinks.