
Graham Friend
MA, MPhil (Cantab), ACA Managing Director , SwitzerlandGraham Friend is the co-founder and Managing Director of Coleago, where he focuses on strategic business planning, valuation, auction bidding strategy and regulatory issues.
With over 25 years in the telecoms sector, Graham boasts a wealth of experience advising a diverse clientele including operators, regulators, governments and investors across both developed and emerging telecom markets. His academic journey includes graduate and postgraduate studies in Economics at Trinity College, Cambridge, as well as being a qualified chartered accountant and the co-author of the Economist’s Guide to Business Planning and Guide to Business Modelling. Graham also provides coaching on communication, presentation and impact skills where he leverages his experience as a TEDx speaker coach. Outside of the telecoms industry, Graham is an ultra-endurance athlete and has represented Great Britain as an age-group athlete in the Olympic and Ironman distance triathlon.
Education
Cambridge University, United Kingdom
- MPhil (Cantab) Economics
- MA (Cantab) Economics
Institute of Chartered Accountants of England and Wales
- Chartered Accountant
Other team members

Mike Johnston
Managing ConsultantMike has over 25 years’ experience in telecoms and specialises in fibre network infrastructure and project delivery. He works on strategic development projects for government intervention to accelerate fibre delivery, technical M&A due diligence for private sector and financial institutions and business strategy and planning for telecom operators.

Dave Tanner
Managing ConsultantDave 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.

Karl Wermig
Managing ConsultantKarl Wermig specialises in national broadband planning and related infrastructure deployments, operations and commercialisation and has delivered more than 100 telecoms consulting engagements.