I am an American citizen, who has to travel to Spain for business meetings in a monthy bases, due to the fact that my company is trying to work out a deal with a Spain shoe maker.
My question will be, will I have a problem coming into Spain multiple times a year or will they allow me in without a problem??
I will usually not last in the country for more that 10 days and sometimes leave the EU from another country like France or Germany.

“The Schengen states are countries within Europe who have signed a treaty (in Schengen, Luxembourg) to allow free movement between them.  These countries are Austria, Belgium, Denmark, Finland, France, Germany, Iceland, Italy, Greece, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Czech Republic, Hungary, Estonia, Latvia, Lithuania, Malta, Poland, Slovakia & Slovenia.  Since there are no internal boundary checks between these countries, it means that they can issue a common visa - known as a Schengen visa - which will allow the holder to visit any or all of the 15 countries. 

VISITORS (Schengen Visa)
American Citizens do not need a visa when they travel to most European Countries for business or for personal travel. The stay in the Schengen area should not exceed 90 days in a 6 month period. Please note that the American visitor will need to present a valid American passport (that does not expire before the end of the visit), proof of sufficient funds and a return airline ticket.”

Tallman1818 all you need to have is letter sayying you got meet with then and you have no problems , you must be coming to PARQUE INDUSTRIAL TORRELLANO in Elche , the shoe captail off Eu .... office are here in the park .... not Luis your dealing with ?

jurdy