Finding Early Learning Centers in the UK by Region

England: Ofsted (regulator), Childcare Choices (gov. portal), National Day Nurseries Association (membership).
Scotland: Care Inspectorate (regulator), Scotchild (membership).
Wales: Care and Social Services Inspectorate Wales (regulator), Welsh Government childcare portal, Wales Childcare Network.
Northern Ireland: Education Authority (regulator), Department of Education portal, Northern Ireland Pre-School Forum.

Each provides search tools, regulation info, and provider directories.