All public limited companies (PLCs) seeking listing on the London Stock Exchange Market are advised to seek professional help to assist in the application to UK Listing Authority for listing.
The law requires PLCs to be represented by an "Approved Sponsor". An approved sponsor must be a person with relevant knowledge and qualifications to undertake the representation.
He must be either an approved person under the financial Services and Markets Act 2000 or an authorised credit institution;
He satisfies the UK Listing Authority that it has sufficient experience and standing to discharge the responsibilities of a sponsor;
He undertakes to the UK Listing Authority to discharge the responsibilities of a sponsor as contained in the listing rules; and be entered on the UK Listing Authority's register of sponsors.
Concise Accountancy - Useful information on public limited company seeking listing on London Stock Exchange