Do Proper Research
Search for SEO companies in and around your city. But, make sure you do not restrict your search to the local market instead, try finding for companies outside your city too. Location of the company should not be a concern when you are looking for a professional company. However, finding a good company in your city would be a great advantage, but you should be open to companies from anywhere if you are unable to find a quality service provider in your local market. After you have shortlisted SEO companies, try to search for them online or visit their websites, to find more information about them. See if they have any online presence. If they have an online presence, then try to find out what their online customers are talking about them. Also, check for their social media channels online. You can connect with them via social media channels too.