Purpose The improving global health (IGH) programme is a leadership development programme that aims to develop leadership skills and behaviours alongside quality improvement methodology in National Health Service (NHS) employees in a global health setting. Through collaboration, experiential learning and mentorship, the programme aims to produce both vertical and horizontal leadership development in its participants. This paper aims to describe the programme and its impact, in terms of leadership development, in a sample of participants. Design/methodology/approach Open coding and thematic analysis of leadership development summaries (LDS) completed by 39 returned IGH participants were conducted. LDS are written on completion of the overseas placement; participants reflect on their personal leadership development against the nine dimensions of the NHS Healthcare Leadership Model (2013). Findings These IGH programme participants have reported a change in the way they think, behave and see the world. A development in sense of self and experience in developing team members are the two most commonly reported themes. Adaptability, communication, overcoming boundaries, collaborative working, “big picture” thinking and strategic thinking were also identified. Research limitations/implications The study is limited by the relatively low number of completed LDS. More work is needed to understand the long-term effect of this type of leadership development on the NHS. Other leadership development programmes should consider focussing on vertical and horizontal leadership development. Originality/value This more granular understanding of the leadership skills and behaviours developed and how it is the programme’s design that creates it, has not previously been described.

The Improving Global Health (IGH) programme develops leadership capacity within the National Health Service (NHS) in a novel way. NHS employees collaboratively run quality improvement projects within organisations in low-income and middle-income countries with whom long-standing healthcare partnerships have been built. Leadership behaviours are developed through theoretical and experiential learning, alongside induction and mentorship. The health systems of overseas partners are strengthened through projects that align with local priorities. This article develops solutions to two main problems: how reciprocal global health programmes can be designed and how global health programmes based in leadership can attract women and black and minority ethnic groups into leadership. The outcomes of both sides of the IGH programme are described here. The overseas perspective is described using the reflections of two current partners, highlighting improvements in the local healthcare system and demonstrating growth in local team members. The UK perspective is evaluated using two surveys sent to different groups of returned IGH participants. Leadership, global health and quality improvement skills improve, having a significant and long-lasting impact on career trajectory. The IGH programme is attracting women and black and minority ethnic groups into leadership. Through collaboration and reciprocity, the IGH programme is developing a new cadre of NHS leader that is diverse and inclusive. The use of long-standing healthcare partnerships ensures that learning is shared and growth is mutual, creating development within the overseas and UK partner alike.