
Dave Tanner
MSc, MA Managing Consultant , United KingdomDave Tanner is an highly experienced senior engineering professional with 30 years of specialist technical and operational expertise in telecoms, specifically, wireless (2G-5G/ WiFi/ IoT), fibre and satellite.
Dave’s career has encompassed roles at Ofcom, ICO Global and various consultancies including Technical Director of Digital Consulting at Mott MacDonald. His wide set of delivery skills span the strategic, operations and technical management consultancy space and include: strategy development; regulatory analysis; due diligence/ lender’s technical advisory; business planning/ modelling; and delivery/ outcome assurance. He has wide project experience, having worked with clients across the globe.
Education
University of Surrey, UK
- MSc (distinction) Satellite Communications Engineering
University of Cambridge, UK
- MA (hons) Electrical and Information Sciences
Member of the Institution of Engineering and Technology
- Chartered Engineer
Other team members

David Conn
Managing ConsultantDavid is a senior finance professional with over two decades of experience in the telecoms sector. He is a specialist in business planning, forecasting, financial modelling and valuation in support of spectrum valuation and strategy projects.

Sebastiaan van den Deijssel
Managing ConsultantSebastiaan 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.

Tim Bosworth
Managing ConsultantTim Bosworth is Coleago’s leadership development and team effectiveness expert. He focuses on supporting for Coleago clients through individual and team coaching, leadership development training and running team and individual psychometric profiling and assessment.