Question to the Home Office:

To ask the Secretary of State for the Home Department, how many (a) large and (b) small businesses have been found to have employed illegal migrants between 2010 and 2015.

The Home Office does not hold information on the size of businesses found to have employed illegal migrant workers. I can inform you that between the financial years 2010-11 and 2014-15 a total of 8,632 civil penalties were issued to employers who employed illegal migrants. The same employer may have received more than one penalty during this period.