This presentation given at the 2015 Asia Clean Energy Forum is focused on the development of the ESCO market in Vietnam and resulting lessons learned. From an analysis of barriers, legal and regulatory framework revisions and development of a national strategy, this presentation includes steps taken to develop the ESCO market in collaboration with MOIT. Experience gained from implemented activities includes: identification of potential stakeholders, tools development (templates, contracts, guidelines, etc.), capacity building of ESCOs and other stakeholders (financial institutions, energy end users, etc.) and market stimulation. The presentation also summarizes the current state of the market and results of technical and financial support.