Heat exchangers and pressure equipment


Located in Sliedrecht, the Netherlands, Kooiman has over 100 years of experience in the design, engineering and manufacturing of process equipment. We work in compliance with many international codes and certifications. In addition, we process a wide range of materials. And as a valued Rootselaar Group company, we provide the continuity and stability highly sought after by gas & oil, petrochemical and chemical companies.

Products & Services

We design and manufacture heat exchangers, pressure vessels and flow cells for the process industry. We tailor all products to meet customer specs and international design codes.
Flow cells Heat exchangers Pressure vessels

Our story


We work with complex materials and apply specialised (welding) techniques to meet our customers’ demands. Read how we face the challenges of constantly changing industry needs.

About Kooiman

Our facts & figures

In business

since 0


0 million

Water ways access

in the Netherlands



Energy industry & industrial gas market

ISO 9001 and ASME certified

Our approach

Your solid partner since 1957

Professionally and geographically, we have grown since the early days. But at heart, we never changed: We continue to be personally involved while bringing your order to a good end.  

International focus, Dutch quality

We serve worldwide clients with robust and reliable products: we understand the value of true craftsmanship. That’s Dutch quality for you. 

We’re not satisfied until you are

We start with conventional products and then alter them to meet your requirements: We customise international standards. And we will continue the work until you are happy.

We work for