International Companies / Scope

http://www.businessweek.com/1999/99_28/g1000_content.htmhttp://www.transitionsabroad.com/listings/work/careers/index.shtml

Top Companies / By Category / Why at Top

http://money.cnn.com/magazines/fortune/global500/
http://www.no1company.com/
http://www.onpointconsultingllc.com/data/Top%20Company%20Press%20Release.pdf

How do i approach a company / Recruitment

You can approach the company by phone, email or by sending a resume & cover Letter,whichever you feel most comfortable with.The Contact details are available at Company Websites
http://knowrecruitment.blogspot.com/

Alphabetically Companies List

http://www.careerbuilder.com/JobSeeker/Companies/CompanySearch.aspx
http://company.monster.com/
http://finance.mapsofworld.com/company/

Wiki

http://wikibusiness.org/
http://en.wikipedia.org/wiki/Company

http://en.wikipedia.org/wiki/Lists_of_companies