From the Open Corporates Blog:
Out of a total of a possible 100 points, the average score was just 21, with several major countries (including Spain, Greece and Brazil) scoring zero. A score of 100 means that the company register is an open data register, making detailed information free for reuse under an open licence, and also makes the information available as open data. A score of zero means the central register can not even be search without payment or registration.
Highest score is the Czech Republic, with a score of 50, though the UK will achieve a score of 70 when it starts publishing a limited set of data under an open licence in July.
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