Jaap Koelewijn

Van Boom & Slettenhaar Film BV is a private company based in the Netherlands that was founded in 1997. The Dutch company specializes in structuring and managing real estate funds for private investors. The company has a history of successfully structuring and selling a large number of real estate funds.

Alfen BV manufactures transformer substations, products for the distribution of electric energy and charging points for electric cars. It develops, designs, produces, and assembles all stations in-house electricity networks, from low to high voltage. The company was founded on May 1, 1937 and is headquartered in Almere, the Netherlands.

Cardano Development BV operates as incubator and fund manager that streamlines capital through partnerships.The company was founded in 2007 and is headquartered in Amsterdam, the Netherlands.

Part of GoodHabitz BV, Helpr.nl BV develops artificial intelligence driven educational chat-bot software solutions. The company is based in Baarn, Netherlands. The Dutch company was founded by Jaap Koelewijn, Erik Methorst, Remy Reurling. Jaap Koelewijn has been the CEO since incorporation. Helpr.nl was acquired by GoodHabitz BV on March 08, 2022.

Nederlandse Beleggingsmaatschappij voor Zeeschepen NV is a closed-end investment fund, which engages in the investment vehicles in seagoing vessels. It operates through the following business segments: Crude, Product Tanker, Chemical, Gas, Container, Handy, MPP, and Other. The company was founded by Herman Diederik Tjeenk Willink on March 16, 2005 and is headquartered in Amsterdam, the Netherlands.