The one place that provides all this knowledge and more is the guildhall Library in Square Mile within London.So, move to Square Mile and prosper!. The fee goes down  to 10 GBP plus VAT for each batch of additional 250 companies. You are equally encouraged to contact the library by traditional post or by electronic means like fax or email. Every possible information can be gathered here for establishing and enhancing of a business. 

The services of a professional researcher can also be resorted