The Toronto SEO company you are considering should have a web site that looks professional and easily to navigate. Research the company to see if they list their clients on their web site. Another way to test SEO vendors is to type the vendor's information into the search engines to see if you can get more information.
For example, by typing "SEO consultants" or "SEO web designers" and similar phrases into a search engine, and see what people online have to say. This will give you a chance to see if the vendor achieved rankings for themselves.
For example, if they are unable to do it for themselves, it is unlikely they will be able to achieve rankings for you. Call the clients and ask if they are achieving higher rankings. Ask if the SEO company is trying to improve the SEO frequently, or if they have not provided any support. Ask if the companies have increased the amount of sales using the SEO consultant.
They should feel that their search engine rank is comparing favorably to their competitor's ranking. It is important that the SEO consultant be someone who is experienced in doing this type of work. They should have an access to a network of sites that can help you with backlinks.
If they develop your web site, they should be able to save you time on how to properly use SEO. The SEO company should be able to save you a significant amount of money by being able to design and optimize a search engine friendly web site, rather than you have to work with a large number of vendors to both design and optimize your search engine ranking.
It is also helpful if the Toronto SEO company is specific to web design and SEO. They should be experts in what they do. They should be able to properly manage an SEO campaign for you without you having to wait a long period of time before you can see a small jump in the search engine results. They can make more money for you and should apply their best people to this area of the business.
SEO firms can quickly startup, but some of them can quickly go out of business. Look for an established company that is able to achieve success in SEO. If the company you are interested in was previously bought by a larger company, this might be a concern that this company was not able to achieve the results in the past that you will need in the future. Find out how long the prospective vendor has been in business.
It will also be necessary to find out if there are lots of people working within a company. A Toronto SEO company that is too small might not have enough manpower to give you the results needed to take your business to the next level. Ask if your vendor does the work or contracts the work to others. You might not achieve the best results by them doing so.