2000 is a remarkable year in history and especially in the history of Optimum by Callens because that’s where it all began! The company was set up in Arnhem, the Netherlands, with as mission to bring innovative and technically sophisticated solutions, in the form of thermal post-combustion and heat recovery, onto the market. Niels Rozendaal, Senior Technical and Sales Manager, turned Optimum into a unique success by always putting the client’s solution, and not the product, first.
In the years that followed, Optimum developed a number of technologies and solutions for the various branches of the petrochemical, processing and food industry in-house.
