MJK Automation is a leading supplier of level and flow controllers and analysis instrumentation for wastewater treatment plants, waterworks and other industries worldwide.

Since being founded in 1977, MJK Automation has enjoyed solid growth in Europe,  Asia and North America.

Today, the equipment developed and produced at our facilities in Denmark is marketed and serviced in more than 50 countries worldwide.


Our promise is to use know-how, technology, energy and time to ensure that water is used as efficiently as possible.

Our goal is to make the world independent of water shortages through our innovation, technology and insight.

Our Culture

We have professional pride and supply products of high quality. We wish to always be our customers' and employees' preferred choice by remaining innovative, reliable and versatile.

Our workplace is welcoming and open, with an open-door attitude to knowledge-sharing.

Great products and excellent results are created because everyone shares in the process - from production and R&D to sales and support. 

Our vision

We aim to
solve water


  • 1977 MJK Automation A/S founded
  • First standard pump controls produced 1979
  • 1989 Subsidiary founded in Sweden
  • Subsidiary founded in the Netherlands 1994
  • 1999 Former Nærum production facility site purchased
  • Subsidiary founded in Norway 2001
  • 2002 pHix® Compact launched
  • Shuttle® launched 2003
  • 2004 MagFlux® electromagnetic flow meter launched
  • Subsidiary founded in Chicago, USA 2004
  • 2005 100,000th hydrostatic level transmitter produced
  • Subsidiary founded in Australia 2005
  • 2007 Connect® and SuSix® launched
  • Oxix® launched 2008
  • 2009 Chatter® launched
  • Subsidiary founded in Singapore 2010
  • 2010 Connect Link launched
  • Mµ Connect® launched 2011
  • 2012 MJK acquired by Xylem Inc.
  • nConnect® launched 2015
  • 2017 Current Birkerød production facility site acquired

During the summer of 2012, Xylem Inc. acquires MJK. The new owner is a world-leading suppliers of water technology.

Xylem operates in more than 150 countries world-wide, and creates a revenue of app. $4 billion (2014). Xylem Inc. is listed on the New York Stock Exchange.

Xylem Inc. owns more than 45 companies. To mention a few: Aanderaa, WTW, YSI, Sontek and Flygt. This means that today MJK is affiliated with some of the greatest producers in their field.

Just like MJK, Xylem does their utmost to make a difference, even in the smallest societies around the world.