
Willem L. Middelkoop MSc BICT
IT business owner, investor, hacker and software developer






Lemmid Store
With Lemmid Store business owners can easily sell products online via their own website, independently from big (powerful) platforms.

DigiDef
DigiDef is a specialised bureau that analyses existing computer systems and offers help with improving security.

Lemmid B.V.
Lemmid provides internet services for selected Dutch and international customers. Together with the customer Lemmid develops new IT products and services, including websites, web applications and apps.

dsd 164 B.V.
dsd 164 B.V. is a publisher of mobile apps for the international market. Apps from dsd 164 B.V. are downloaded millions of times.

Willem & Laurentz Holding B.V.
The Willem & Laurentz Holding B.V. invests in technology related companies. It is actively contributing to the development of new initiatives.

Snake '97
Play Snake like it is 1997. This is a remake of the original Snake, complete with dot-matrix display and monotone sounds. The game has millions of fans world wide.
Snake '97 High Scores
Game inspired art by Zena Van den Block

Last week I received a very kind invitation from a Belgian artist, to attend her art exhibition in Antwerp. The work on display involved the Snake '97 game that I have created. Uttering to find the right words and thrilled with excitement, I happily accepted the invitation!
Wearing WHOOP 4.0
Why you should wear a biometric sensor

How often do you look in the mirror? Probably more than a few times a week! I have been thinking about this ever since I received my newest WHOOP 4.0 biometric sensor. It's great. But, why do I wear it? What value does it provide? Why should you wear it?
For the love of mini
The unexpected greatness of iPhone Mini

People regulary ask me why I have a small smartphone, a modern iPhone 13 Mini. Often I simply reply that I like it. The smaller size offers more than just an easier fit in your pocket. I have come to appreciate its intangible greatness, read along for the love of mini!