It is well known that Google gives credit in search engine rankings if you have a part or all of the search term in your domain name.
This is logical since perhaps you are looking for that exact company.
How Google has dealt with this has changed. A couple of years ago it had to be an exact match or you got no credit for it. Even singular versus plural washed out the advantage.
Now even one word from the search phrase will give you a leg up in rankings.
According to Matt Cutts, Google’s spokesperson for Search Quality, this is under debate at Google. The article referenced has more interesting material on what Google is and has been up to.

Matt Cutts at PubCon