Office of the Immigration Services Commissioner The OISC are set up by the UK government in order to scrutinise and assist those in the provision of immigration advice. Home Office is the government department responsible for immigration in the UK. Visit their website for their latest news and information on immigration. Joint Council for the Welfare of Immigrants JCWI is an independent national voluntary organisation, campaigning for justice and combating racism in immigration and asylum law and policy. Immigration Advisory Service is a charity with over thirty years' experience and more than 250 staff members. Companies House is the government department that registers and provides company information. Check out our listing and then let us help you to set up your own company.