ConstructionSkills commissioned BMRB to undertake a survey of construction workers to provide reliable data on the nature of the workforce in the UK and the Republic of Ireland (ROI) with regard to their competence/qualification levels and the extent of occupational and geographic mobility within the workforce. This report presents the findings of the survey amongst migrant workers. Migrant workers are defined as non UK/ROI nationals (those who said they were originally from the UK/ROI or had lived all their lives in the UK/ROI were excluded).