CityOptimum

CityOptimum is a well-maintained business directory that is manually worked on by real people to make it worth browsing. CityOptimum offers both free and paid options for submission.

The paid options have a few additional features over the standard free submission. Listings on the directory not only give you an SEO boost but also provides a quality profile for your business that includes a listing of your logo, business profile, website link, as well as anything else you'd like to tell people about your business.