While many of these firms are honest, there are a number of them that use questionable techniques, while others are complete scams.
Knowing what to look for when you are looking to hire an SEO company is very important.
First off, you don't want to work with a firm that uses black hat SEO tricks.
Even though these tricks may get your site to the top of the SERPs, it will be permanently banned by the search engines when they discover what has been done.
If you pay a company $2,000 to optimize your site, do you want to take this risk? Be wary of companies that guarantee they will be able to give you high rankings.
It is likely that they are trying to scam you, or will use black hat SEO tricks.
If the company only alters the meta tags, they are attempting to defraud you.
If they create doorway pages, this is another sign they are bad news.
A high quality SEO company will have a number of characteristics which set them apart from other companies.
Good sites will have good reviews from other webmasters.
If you are not sure which company to go with, join a webmaster forum and ask the webmasters there which SEO companies they recommend.
While some will obviously refer you to their own companies, you will get a sense for which companies are good and which are not so good.
The SEO companies which are the most popular are the companies you should consider.
At the same time, these companies tend to be very expensive, because they have built themselves a reputation.
When you look at an SEO company, cost isn't as important as quality.
Even if one company is cheaper than another, they won't do you much good if they are low in quality or fraudulent.
Because of the costs involved with SEO companies, you will want to make sure the company you use is the best.
You can't afford to waste money on a company that doesn't deliver.