Koch Membrane Systems, Inc. (KMS) is a manufacturer of systems and membranes for filtration and separation, and supplies its customers with a wide variety of membrane related products including chemicals and technical service. For more than 35 years the company has been developing membranes for markets such as water, wastewater, paint, juice, and dairy. KMS makes a complete range of membranes including reverse osmosis (RO), nanofiltration (NF), microfiltration (MF) and ultrafiltration (UF) in three basic configurations: tubular, spiral and hollow fiber, and offers a broad range of membrane cleaners and antiscalants as well...

About Us

We Meet—And Exceed—The World’s Filtration Needs.

For nearly half a century, KMS has been a world-class developer and manufacturer of innovative membrane filtration systems serving a global marketplace. We develop the finest filtration membranes, build custom and engineered systems for a broad array of industries, and provide superior technical and customer service support.

With a worldwide installed base approaching 20,000 systems, we continue to set the standard as an industry-leading membrane system provider. Our solutions are at work today in a wide variety of markets that include municipal and industrial water and wastewater processing; dairy, juice, and wine processing; industrial biotechnology; and many more. We help thousands of industries reduce their water footprint, increase productivity, and reduce costs.

Operational Excellence

Our Strengths Can Also Be Yours.

With an installed base approaching 20,000 systems, KMS has become a world-class developer of membrane filtration systems. We thrive by employing the brightest minds in the industry and rewarding innovation. We provide best-in-class solutions to markets including industrial and municipal water and wastewater, food and life sciences, and industrial processes. Through these relationships, we help thousands of companies reduce their water footprint, increase productivity, and save money.

KMS is fully certified and adheres to the strictest quality control, environmental, and safety standards in the field. ISO 9001, an international standard that sets requirements for an organization’s quality management system, signifies our methodical approach to quality management in order to meet your expectations for excellence and regulatory requirements. We strive for complete customer satisfaction, and continually make improvements that support this goal.

Headquartered in Wilmington, Massachusetts, with manufacturing facilities in North America and Aachen, Germany, KMS employs more than 500 dedicated people worldwide.

Research & Development

R & D Is The Essence Of Our Commitment To Progress.

The only way to advance state-of-the-art technology like ours is by continually investing in research and development, manufacturing technology, and product-testing facilities. By always pushing the boundaries of what seems possible, we have greatly improved our membrane formulations, element designs, and process knowledge. We strive to exceed customer expectations and are proud of our record of service.

Our corporate headquarters in Wilmington, Massachusetts houses a sophisticated product development, life testing, and research complex. This 15,000-square-foot R&D facility will make tomorrow’s technology possible, and is the heart of our operation.


See what half a century of innovation looks like.

The Early Years
Koch Membrane Systems, Inc. was established in 1963 as a privately held company known as Abcor, Inc. Its charter was to develop and commercialize processes and equipment based on separation and purification technologies, which originated with scientists from the Massachusetts Institute of Technology.

The Shift In Focus
In 1970, the company added ultrafiltration membranes and systems to its portfolio of separation technologies, which proved to be so successful that all other separation technologies were abandoned. Since then, the company has concentrated entirely on membrane separation and has become a world leader in this field.

The Evolution
The growth of our original company was gradual but well focused. Koch Engineering Company, recognizing the commercial potential of these technologies at the outset, not only provided the seed capital to establish Abcor, but obtained minority ownership position. In 1977, Koch Engineering Company bought out the remaining shares, with Abcor becoming a wholly owned subsidiary. In 1981, the company became Koch Membrane Systems, Inc.

A Global Community
KMS is headquartered in Wilmington, Massachusetts, with offices throughout the world. With manufacturing plants in Wilmington and Aachen, Germany, KMS has flourished thanks to our ongoing development of superior filtration products, as well as through acquisitions of leading companies in the field. Among the acquisitions were Romicon, Inc. (1991), Fluid Systems Corporation (1998), and Puron AG (2004).

Romicon's outstanding reputation was based on hollow fiber UF membranes and systems. Fluid Systems Corporation, now fully integrated into KMS, was one of the pioneers of commercial reverse osmosis and nanofiltration membrane products, which lead the industry for desalting brackish water and seawater for drinking purposes. This advanced desalination technology is also used for many industrial applications. Puron developed a submerged membrane bioreactor technology that shows great promise for both industrial and municipal wastewater treatment.

Leading Through Innovation
We manufacture UF, MF, RO, and NF membranes and systems in a variety of configurations including hollow fiber, spiral, and tubular shapes. We also sell equipment in a wide variety of global markets that include municipal drinking water, industrial wastewater, juice, dairy, wine, pulp and paper, automotive, pharmaceutical and biotech, sweeteners, and many, many more.



AMTA/AWWA Membrane Technology Conference & Exposition, Aquatech Amsterdam 2013, ENTSORGA-ENTECO 2011, FILTECH 2013, FILTECH 2015, IWEX 2011, Membrane Technology Conference & Exposition 2013, POLEKO 2011, SMAGUA 2012, WQA Aquatech USA 2012

Company details

Business Type:

Industry Type:
Water and Wastewater - Water Filtration and Separation

Market Focus:
Globally (various continents)


$100,000,000 US - $1,000,000,000 US

Office & Distributor locations:


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