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About Lenntech

About Lenntech 33 years in 2026

About Lenntech - Innovative Water Treatment & Membrane Separation Solutions since 1993

Lenntech Water Treatment Solutions, established in 1993, is a design and manufacturing company situated in The Netherlands, near the Technical University of Delft.

Lenntech provides innovative and sustainable solutions for water treatment and liquid separation, focusing on industrial applications. With an experienced team of sales, environmental, chemical, mechanical and electrical engineers we are specialized in providing turnkey and customized water purification and membrane separation systems for numerous different industries and applications.

Our wide range of technologies and extended know-how in all water-related sectors will guarantee you a cost-efficient solution that will meet your water quality requirements. Each water and liquid stream are unique, and we prioritize research and development to keep our solutions and products in the front line.

Value integration in Customer process

Our philosophy is to provide state-of-art and innovative solutions, integrated with design, engineering and sustainable manufacturing for effective water and wastewater reuse, while partnering with industries, academic institutions and research centers.

Lenntech has a dedicated department for the after sales market. We can deliver spare parts for your equipment from all main manufacturers, from filters, membranes and resins to pumps and all other water treatment related products. This allows Lenntech’s team to support our clients with class A service in terms of quality and availability.

During the last years our team served directly or through its partners’ network more than 140 Countries worldwide, positioning Lenntech as an international reference for water purification and membrane separation. Lenntech is committed to provide you with the best and most convenient solution available.

Lenntech turnkey solutions

See our Projects Information / details at

Reference projects

Lenntech Cataloque

References of Lenntech include the following companies/industries:

Read more about us in our mission statement

For more information, references and other questions, please feel free to contact us at any time.

Company Policy

About Lenntech

Lenntech (European Head Office)

Distributieweg 3
2645 EG Delfgauw
The Netherlands
Phone: +31 152 610 900
fax: +31 152 616 289
e-mail: info@lenntech.com

##### Lenntech USA LLC (Americas)

5975 Sunset Drive
South Miami, FL 33143
USA
Phone: +1 877 453 8095
e-mail: info@lenntech.com

##### Lenntech DMCC (Middle East)

Level 6 - OFFICE #101-One JLT Tower
Jumeirah Lake Towers
Dubai - U.A.E.
Phone: +971 4 429 5853
e-mail: info@lenntech.com