Royal Dirkzwager optimises its port entry data services
Taken from: Marine Electronics & Communications February/March 2010

As long ago as 1872, Gijs Dirkzwager realised that a market existed for port-entry nautical and maritime information. He began by dispatching information about the expected arrival times of sailing and steam ships by horse messenger from Hook of Holland to Rotterdam.
In the 137 years, the company he founded has grown from a supplier of information at the Port of Rotterdam into one of the world’s leading maritime information service providers. While most of its original customers were Dutc....
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