Sebastiaan van den Deijssel
Managing Consultant , NetherlandsSebastiaan has over 15 years of professional experience in marketing, product development, sales, customer care, BSS/OSS, and business modelling for Telecom. He is one of the foremost experts in the field of MVNEs and MVNOs. He gained his experience in key roles within MNOs, MVNOs as well as MVNEs in Europe, Middle East, Africa, Caribbean and the USA.
Sebastiaan van den Deijssel has been involved with multiple core network integrations, in-sourcing wholesale operations and MVNO implementations in several countries. He recently developed a new strategy for an MVNE, focusing on service delivery instead of traditional airtime driven models.
Sebastiaan developed solutions and product portfolios and reference offers (retail, wholesale and M2M) for several MVNEs and MVNOs. His out-of-the-box and customer centric approach has resulted in many innovative concepts, which have significantly contributed to the success of these MVNEs and MVNOs.
Other team members
David Barker
Managing ConsultantDavid is a cellular network and technical radio spectrum domain expert in Coleago’s spectrum strategy and spectrum valuation practice areas. He is a specialist in the analysis of spectrum holdings, inference risks and development of technical valuation models.
Julian Garrett
Managing ConsultantJulian is a highly experienced telecommunications professional with over 25 years of leadership in mobile network innovation and transformation, with a track record spanning 19 countries.
Matt Halfmann
Managing ConsultantMatt Halfmann is an accomplished telecoms strategist, business modeler and executive trainer, has unrivalled expertise in digital infrastructure and telecoms regulation, and has worked in more than 100 countries.
