• Wholesale and Retail Trade; Repair of Motor Vehicles and Motorcycles42
• Professional, Scientific and Technical Activities24
• Construction23
• Information and Communication23
• Real Estate Activities20
• Accommodation and Food Service Activities12
• Financial and Insurance Activities11
• Administrative and Support Service Activities11

• Northern Ireland (BT)19
• East Central London (EC)17
• West London (W)13
• West Central London (WC)13
• Manchester (M)6
• East London (E)6
• Leicester (LE)6
• North London (N)4

• Retail sale via mail order houses or via Internet4791022
• Other letting and operating of own or leased real estate6820916
• Management consultancy activities other than financial management702299
• Business and domestic software development620128
• Buying and selling of own real estate681008
• Construction of domestic buildings412026
• Other retail sale in non-specialised stores471906
• Take-away food shops and mobile food stands561036
• Other software publishing582906
• Information technology consultancy activities620206

Companies list up to four SIC codes, so a company appears under each of its codes.