NTCS was founded in 2001 by Marcel van Dam and late Sjef Ramakers. Marcel and Sjef were both working for KPN (International Consultancy) when, in 2001, KPN ceased all international telecom consultancy activities. Marcel and Sjef used this opportunity to take on all ongoing projects and founded Netherlands Telecom Consulting and Support, now simply known as NTCS. Since 2001, the company has grown into a specialist within every aspect of telecom consulting.


Marcel van Dam

Marcel has worked for KPN and KPN Mobile in various commercial (management) positions. Resulting from his last position as an Area Director with KPN International Consultancy he founded NTCS in 2001, with Sjef as founding partner. Eversince he has helped NTCS expand.


+31 6 5317 0440

Henk van Rooijen

Henk is a seasoned senior executive and has a wealth of expertise in innovation, transformation, operational excellence and ICT on board/C-level.


Partner and Consultant
+31 6 2042 3960

Jelmer Gulmans

Jelmer focuses on broadband network technology strategy and deployment. Including fixed (FttH/HFC/DSL) and mobile networks as well as triple-play and value added services.


Partner and Consultant
+31 6 2189 8390

Mark Boeren

Mark Boeren was responsible for Fixed Portfolio and later Sales & Marketing at KPN. Mark focusses on business planning, target setting, portfolio management, transformation and performance management, including both financial and non financial items.


Partner and Consultant
+31 6 5369 6086

Ise Vermeire

Ise is specialised in IT strategy, IT bids and sourcing queries. Besides his career in the Netherlands Ise has worked and lived a.o. in the Caribean and South Africa.


Business Development Manager and Consultant
+31 6 1940 9545

Petra van der Heij

Pertra works as Operations manager for NTCS. She takes care of project administration and is point of contact for consultants, clients and suppliers.


Operations Manager

Albert Bakker

Albert Bakker specializes in interim management, program and project management. He has been active in telecom and IT for over twenty years and has experience in outsourcing changes within organisations, fusions, setting up new organisations and solution management.


Associate Partner