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 Schampoo, Perfume, Shoes)

Product Yellow Pages by Amazon

Video about the Amazon Pop Up Store @ Cremerie de Paris,
the World's most famous Brand Expo location
and historic home of the Whitepages from many countries

Product Yellow Pages by Ali Express

Video about the Ali Express Pop Up Store @ Cremerie de Paris,
historic Telecom hotspot and former seat of the Postal Services
of King Louis XIV

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

Pages Jaunes du
Pages Jaunes du

Find Products / Companies via Yellow Pages B2B
Business to Business
Companies providing Products for Professionals
(example tissues to produce clothes)

Find companies through Gov Pages
search through the Government
Government of Senegal
Senegal Gov Search
this search engine goes through
all the Senegal 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 ...