
Tim Bosworth
BSc, MSc, PhD Managing Consultant , AustriaTim 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.
Tim has held leadership positions within the energy sector living and working across the globe and specialising in supply chain and team organisational effectiveness and is a member of the British Psychological Society. Tim is delivers psychometric profiling including Hogan, MBTI, DiSC, NEO PI3, NBI, Clarity 4D, and is registered to use the 6 Conditions of Teams Diagnostic Survey and is a certified change manager through PROSCI. He has been a professional coach for 15 years.
Tim has consultancy experience with companies such as Celcom, bangalink, MTN, Shell, BP, ADNOC, McKinsey, Amgen, General Mills, Smith and Nephew, Societe Generale, United Nations and start ups such as Avast Norton, Ataccama and Zolar.
Tim combines his early career in the energy sector with his leadership consultancy and has created a practical and direct approach within the world of corporate leadership development. His style of consultation is rooted in focus on an adaptive communication style. His delivery is challenging and interactive, enabling leaders to reach clarity and shape action. His work across profit, non-profit, start-ups and commercial incumbents has given him a unique view on what works and what doesn’t in business and leadership.
Education
- BSc Environmental Science
- MSc Environmental Engineering
- PhD Analyical Chemistry
Other team members

Stefan Zehle
Chairman and CEOStefan is the CEO and the co-founder of Coleago Consulting. He has been working in telecoms since 1987 with experience in over 65 countries. Stefan is a director of a start-up mobile operator, and an expert in spectrum valuation and licensing.

Domingo Villanueva
Managing ConsultantDomingo Villanueva is an expert in regulatory cost accounting and definition and valuation of remedies in the context of mergers and acquisitions in the Telecoms sector. He holds an MBA from IE Business School and a BA in Business Administration from ICADE Madrid.

Scott McKenzie
DirectorScott is one of the directors of Coleago and is a highly experienced consultant with over 30 years’ experience in the telecoms and high technology industries. Since joining Coleago, he has led numerous complex spectrum, fibre, MVNO, regulatory, transaction and training projects.