From what I can find out from wikipedia (the source of all knowledge ), a corporation and a company are the same thing. Now the word incorporate (i.e. inc AFAIK) means to bring together or something along those lines. The wikipedia definition of incorporation is the creation of a company, and so from this I would hazard a guess that an incorporation is when multiple companies have joined together to form one whole. But don't quote me on that. Also, check out wikipedia and google for the terms company, corporation, and incorporation and you might find a better (perhaps more correct?) answer to your question.

[edit] After another search on google, I think I've found the answer. I believe that inc(s) are the same as ltd (limited liability) companies in the UK. Here's a link that might (if you read between the lines, as it were) give you some more detailed info: http://www.inc.com/articles/1999/10/14610.html [/edit]

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