There are different Business Directories :

Try all different Business Directories offered by
Every Engine has different results,
Most companies are listed in serveral directories
but the results are not the same ...

Find Products
find products and order them directly (example Porto, Computers, Shoes)

Product Yellow Pages by Amazon

Video about the Amazon Pop Up Store @ Cremerie de Paris
one of the World's most famous places for Brand Expos
and historic home of the Portuguese Whitepages.

Find Products / Companies via Yellow Pages B2C
Yellow Pages Business to Consumers
Companies froviding Products or Sevices for End Users
(example Restaurant)


Find Products / Companies via Yellow Pages B2B
Pro Yellow Pages Business to Business
Companies from Ireland providing Products for Professionals
(example Machinery)

typical products from Ireland:
coming soon

Find Company Info via Financial Yellow Pages
Financial Infos
Contact Details
All kind of Companies from Ireland

Find Companies via Gov Pages
search through the Government
Government of Portugal
Portugal Gov Search
this search engine goes through
the Irish Gov Portal
all the Irish ministeries,
maybe the company you are looking for
has been mentioned at some point.

Find Companies in other Countries
search in another country
Phone Book of the
Phone Book of the
Annuaire du
maybe the person you are looking for has moved
and can be cound through the directory of another country

good luck ...