How many companies are there globally involved in the design and
construction of ships in the following geographical regions aggregated
by region?
1) Europe, Middle East and Africa (excluding UK and BeNeLux)
2) UK, BeNeLux and the Americas
3) Korea and Japan
4) Greater China (Including Australasia, Malaysia, India and SE Asia
generally but not Korea and Japan).
I realise you will need to make certain assumptions to answer this,
like, for example, only consider organisations with more than 20
employees.  If you can get an answer only by making certain
assumptions I would still like to have the answer but with the
assumptions stated.  Companies can be whole companies or a subsidiary
of companies involved in the same field of work in the same region.