Possible Clues:

• Model employers
• Businesses taking long time, possibly nice to work in
• American spirits found in bottles around conservative offices
• A long time since wrinkly's operations
• Businesses that provide services on behalf of another businesses
• Government bureaus
• Get older Northern Irish transport system close to southern bureaus
• They organise transactions, between advertisers and media perhaps
• 10 across belongs to these sort of businesses
• Companies that sign talent