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About us

Llewellyn Consulting, founded in 2009, is a well-established, respected independent macro advisory firm, providing strategic research, analysis, and thought leadership. 


We set particular store by our independence. We combine the depth of experience and breadth of expertise of our global team of recognised experts and network of business partners, built up over decades, to:


  • Assess intelligence – so as to ‘cut through the noise’; 

  • Provide early insight into key developments, turning points, and risk; and 

  • Assess implications for companies and markets.

With economics firmly at the core, our focus is on the main drivers of economies and markets, across technology, climate change, and energy; through to ESG, policy, and political issues. 

The firm is led by the two partners: Dr John Llewellyn, former Head of International Forecasting and Chef de Cabinet at the OECD, and Global Chief Economist at Lehman Brothers; and Managing Partner Preston Llewellyn, who specialises in ESG, political economy, emerging technologies and, as an economist with a background in industry and an MBA, implications for corporate strategy and markets.

Our distinguishing features
  • A broader and longer term perspective than typically offered by City economists.

  • Unbiased and uncorrelated research.

  • Strong connections with senior policymakers and decision makers.

  • Involvement of our senior people throughout all projects.

  • Experience in working constructively with in-house teams.

  • Communication in plain, clear English.

  • Total trust, discretion, and confidentiality.

Our philosophy
  • ​We use our experience 

  • We build long-term relationships.

  • We do not overburden our clients.

  • We listen to our clients, and deliver what they ask for.

  • We generally work on a retainer basis.

Our clients
  • We advise leading asset managers, governments, multinational corporates, and law firms.

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