Altair Advisory is a specialist aviation consultancy providing advisory and board-level support for stakeholders and policymakers, with a focus on commercial strategy, technology and sustainability. Our clients include airports, ANSPs, OEMs, policymakers and other stakeholders in Europe and beyond. A growing proportion of our work is in the area of sustainable aviation: identifying effective pathways for aviation emissions reduction, recommending appropriate policy measures and working with aviation companies to define strategies for success in this new environment.