Company Bank statements, or company credit card statements, issued by a regulated financial sector firm (original copies within last 3 months)
Official Tax Company Revenue Letter from HMRC or National Tax Authority (This can be dated from the last 12 months)
Company Utility Bill (Letter issued by utility provider, contain name, contain address & be issued within last 3 months - not including mobile phone bills)
Letter by your bank/lawyer/accountant OR affidavits confirming your company name, your company address dated within the last 3 months.
Local Government (Council) issued tenancy agreement