Constable Research B.V.


Tunicaduin 11

2318 XE Leiden

The Netherlands.

Mobile: +31 (0)6 53843188.

Telephone: +31 (0)71  5231126.


I receive a lot of comments and questions.

Sadly enough more than 50% is spam. To all the people who spend their time creating this spam I want to tell you that I use a very intelligent spam-filter so you are detected and removed in a split second.

The best way to communicate with me is to become a Linkedin connection.