The success or failure of any website is entirely dependent on a single and key aspect and that is traffic. A large volume of traffic can result into greater conversions and this, in turn, ensures greater revenue. But getting traffic is a little tricky job especially if your site is not to the statute of Facebook, LinkedIn etc. That is to say, unless your site has something really interesting that the users themselves become the promoters or in other words your site does not go viral then it will perhaps need witty SEO services to gain the traffic.
SEO services are quite different from Google advertising as the later involves the direct marketing and it is quite costly affair. But there are so many SEO service providers that it becomes quite confusing to choose a genuine one unless you have the domain knowledge. If you are completely new to this field then you might be duped of your money by fictitious or incompetent service providers. The best way to choose a suitable SEO company in this circumstance is to go to a freelancing platform like Elance, oDesk, Guru etc. Post your projects and you will get numerous proposals.
Most of these companies will have feedbacks from their earlier clients; you can try to know about them through this. Besides, these platforms have their own independent and neutral mechanism to provide the ratings. You can choose a suitable company based on their ratings, number of projects they have handled till now and off course their proposed cost of the promotional project. Based on these information you can choose one that suits your business requirements and budget.
Do not get flattered by someone who promises a top ranking because there is no tried and tested formulae for page one ranking and it is a time taking, continuous and cumbersome job to get the site ranked on the first page on competitive keywords. You also need to ensure that the design a development of your site complies with the SEO guidelines. It is better to surf the webmaster segment of Google and prepare a checklist of the design implementations that are Search engine friendly. You can get your designer and developer to work out on these before approving the project. This will ensure that you do not have to incur additional costs of getting the same done when you hire the SEO Company.