The Naming Matters system currently contains Trademark data from the following four sources.
- United States
- United Kingdom
- European Union
*Note that the EU countries included if an owner has an EU trademark are: Austria, Belgium, Bulgaria, Croatia, Republic of Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden and the UK