WSI International
WSI International
Wastewater Treatment and Equipment

Contact WSI

WSI International is dedicated to ensuring compliance with local and regional standards without compromising on the quality and efficiency of the products we deliver. 

To know more about our services and how we can help with your wastewater treatment needs, kindly contact us via any of the options below. An experienced member of our team will respond shortly.

Working Hours

Weekdays : 7am to 4pm

Weekends : Paid Support



469 W. Wesley Ave

Denver, CO 80223

Phone: (303) 985-0885


77 West St, Suite 305

Annapolis MD 21401
Phone: (443) 320-0211

Contact Us

About WSI International

WSI International is a group of engineers committed to coming up with reliable and efficient Wastewater Treatment Systems designed to meet your industry’s wastewater treatment demands.

A provider of innovative systems, we have been designing industrial and municipal wastewater treatment plants and wastewater equipment for over 30 years. This years of experience and commitment to excellence has seen us become a go-to provider of the most reliable treatment plants around the world.

All wastewater treatment plants we build are made from the finest of stainless-steel material. This means you can be confident of superior quality that meets both local and regional standards without compromising on efficiency and durability.

Currently maintaining over 80 plants around the world, our staff are fully equipped with the needed expertise to tackle any wastewater project across different industries. 

Whether it’s a wastewater system in Oil &Gas, Food & Beverage, Industrial Pre-Treatment, or Municipal industries, we have the right team to deliver optimal results.