Unless you have a high domain rank, it will be hard to rank higher than sites like Yelp for competing keywords. I suggest that you take a look at a bunch of long-tail keywords and build out new pages to bring in more web traffic directed to your prospects. You need to set up a link building strategy based on keywords. If you do want to compete for keywords against Yelp, then you need to get some powerful links for those pages. Take a look at Ninja Outreach for link building. This will give you a platform to manage your outreach.