Identify UK School Stationery Importers

I need a concise, accurate list of the 20 leading UK-based companies that import school stationery—specifically pencil cases, scissors and ring-binder folders. The focus is on genuine importers only, not domestic wholesalers or retailers.

Your research must be done manually through Google, LinkedIn and respected industry directories so the data is verifiable and up-to-date.

Deliverables (spreadsheet or Airtable is fine):
• Company name and website
• Confirmation they act as an importer (a brief note or source link)
• Primary contact name, role and LinkedIn profile link
• Direct email and phone number where publicly available
• Registered office or warehouse address

I will review the list for completeness, relevance to the three product types, and source accuracy before releasing payment.