About ISM

ISM has developed a strong international network of reliable business partners, so that its activity can be said to be truly worldwide. The company offers its partners a national and international network within the field of professional football as well as a highly capable team of sports experts, legal experts and tax specialists – both on a national and an international level – for whom the professional sportsman is more than just a transferable product.

ISM has an excellent reputation that is based on profound professional knowledge, experience and reliability.


Walter Mortelmans

Walter Mortelmans

Born on 07/12/1958 in Belgium, Belgian nationality, Managing director ISM, Member of the board of directors of different companies, Co-founder of IFBI – International Football Business Institute (www.ifbi.brussels), Economist master degree in sport management, Guest professor at the Free University of Brussels (VUB), Author of: Analysis of Professional Football in Belgium: Proposal for a new Structure.

Phone: +32 475/ 467 840

E-mail info@ismantwerp.be

Thomas Troch

Thomas Troch

Born on 24/08/1981 in Belgium, Belgian nationality, Working with ISM since March 2012, Corporate Management, Option Marketing, 10 years youth training Club Brugge, Belgian national team U12-U18.

Phone: +32 488/ 484 868

E-mail thomastroch@ismantwerp.be


Karel D’Haene

Karel D’Haene

Born on 05/09/1980 in Belgium, Belgian nationality, Speaks Dutch, French, English, Professional football career: R Antwerp FC 2000-2003, Trabzonspor 2003-2005, Manisaspor 2005-2006, SV Zulte Waregem 2006-2016. Bachelor’s degree in business engineering.

Phone: +32 478/ 521 965

E-mail: karel.ismantwerp@gmail.com

Alan Parisi

Alan Parisi

Born on 19/09/1981 in Belgium, Belgian and Italian nationality, Speaks Dutch, French, Italian, Youth education in Belgium and Holland, Trade Degree, Manager Avanti.

Phone: +32 485/ 539 754

E-mail: alan.ismantwerp@gmail.com

Glenn Pfaff

Glenn Pfaff

Born on 30/03/1994 in Belgium, Belgian nationality, Speaks Dutch, French, English, Secundary Education, option Corporate Governance.

Phone: +32 471/ 513 681

E-mail: pfaffglenn@hotmail.com

Looking for ISM contact information?

Since we are on the road and in the field a lot, just send us an email and we will get back to you.
Please provide contact details (email, phone) along with an indication of time when we can contact you preferably.

International activities

As the company is based in Belgium, we are one of the most important agents. We defend the interest of about 90 players worldwide. We have excellent relationship with a lot of leading clubs all over the world. In addition the company has build up a world wide network of reliable business partners and realised transfers in different countries, as well in Europe as in Asia. The company benefits an excellent reputation and wants to develop a long term business relationship with his partners. ISM, founded by René Vijt and Walter Mortelmans, can offer to the partner-clubs our experience and network in the football market.