United Kingdom - Companies House

https://www.gov.uk/government/organisations/companies-house


United Kingdom - HM Revenue & Customs

https://www.gov.uk/government/organisations/hm-revenue-customs


Hong Kong - Companies Registry

http://www.cr.gov.hk/en


Hong Kong - Inland Revenue Department

http://www.ird.gov.hk/eng/welcome.htm


Cyprus - Department of Registrar of companies

http://www.mcit.gov.cy/mcit/drcor/drcor.nsf/index_en/index_en?OpenDocument


Cyprus Inland Revenue Department

http://www.mof.gov.cy/mof/ird/ird.nsf/dmlmission_en/dmlmission_en?OpenDocument


Panama - Public Registry

http://www.registro-publico.gob.pa/en/


Saint Kitts and Nevis - Inland Revenue Department

https://www.sknird.com/


BVI - British Virgin Islands Financial Services Commission

http://www.bvifsc.vg/

 

Ireland Companies Registration Office

https://www.cro.ie/

 

Malta - Malta Financial Services Authority - Registry of Companies

http://rocsupport.mfsa.com.mt/pages/SearchCompanyInformation.aspx

 

Companies registries (other jurisdictions)

https://en.wikipedia.org/wiki/List_of_company_registers