You can register your enterprise (for free) within Google My Business: https://www.google.com/business
This is the place to get your business onto Google Search, Maps and Google+. Google My Business helps to provide useful information to customers, i.e. driving directions to your premises within Maps, opening hours in Search or a clickable telephone number so that customers can call you via their mobile phone.
At the time of writing, there is an orange bar at the top of the Google My Business page. Click on ‘Review updates’ and you will find that it is easy to edit the information: just click the little pencil symbol.
Having clicked on https://www.google.com/business …scroll down to Share something interesting; discover Insights (i.e Views); Google Analytics (i.e. New visits): Reviews (which are important); and Hangouts.
Google My Business enables customers to give ratings and reviews, use the +1 button to endorse your content and share your Google+ posts.
Over the years, Google has experimented with a number of services including Google Places for Business and Google+ Pages Dashboard to manage business information. If you have previously registered for these services, you should appear automatically within Google My Business. However, it is worth checking that your enterprise is there and that the information is up-to-date.
I have recently updated my SEO e-book. I wrote the original version several years ago and during that time I have noticed that quite a few directories have disappeared. I imagine that some of them have merged with each other; however, I have a feeling that quite a few of them just couldn’t compete with Google.
If you have any questions, you can ask via The Marketing Compass.