explore our story

Jan de Jonge Sr.

Jan de Jonge Jr.

Alexander de Jonge

Our story started in 1954 when Jan de Jonge sr. founded the company. He was one of the first electric welders of Holland working for the Royal Dutch Shell. After he came back to Holland from a project in Indonesia he resigned from Shell and started the company with his pension funds.

During the first years Rotterdam was rebuilding its port and there were so many expansion Oil and Gas projects that he could let the company grow durable. The following years we focused on general piping and construction works. Everything made from steel we were able to provide from tanks to fender systems for ships. From the 1st day we started working in the Industry we had strong core values; servicing our customers day and night, long term relationships, delivering quality and working safe to ensure customers coming back.

In the seventies the second Generation entered the company with a vision that we could service our customers better when we would do more than just connecting their assets with pipes. So he started to diversify our business forming a group of companies which are now able to design, build and service the complete oil and gas transport system from tank to tanker.

We completed this mission and improving our portfolio every day since and are ready for the next steps. In 2008 the third generation started in the company and is developing the company to optimize the current business and taking the next steps towards fulfilling our customers future needs which mostly lye in the field of product automation and digitizing processes.

Our company will never stop developing

Our Timeline


Start J. de Jonge Mechanical (J. de Jonge Constructie- en Pijpleidingenfabriek)


 J. de Jonge Adviesburo


JLS loading arm service B.V.


JMEC engineering B.V.


J. de Jonge Belgium


Tank-Care B.V. 


J. de Jonge Saudi Arabia


HES heat exchanger service B.V.


JRS rotating service B.V.


J. de Jonge GmbH (Germany)


J. De Jonge Middle East LLC


JLA loading technology BV


J. de Jonge TankX