The URL you posted is incorrect. Look closely at the word, company, in the URL. You spelled it copmpany. The correct URL is
http://www.webdesigningcompany.net/.
So, you received an unsolicited email; that's commonly called spam. Having said that, I took a look at their site. It's a well developed site; it's very professional. I like the way they show prices for various levels of web development right on their home page. And, they have a testmonials page and, at the bottom of the home page, you see links to various porfolios of their work.
So, if you are looking for a web designer to do a project for you, that site seems worth serious consideration, in my opinion.