Indexation Mystery...help?

Greetings!

Our site has been live for over a month now. I post content regularly in the finance space. All our posts are being indexed on bing, yahoo, and all the other engines, but not Google. Our site was private for several months while we were building it. Out of 37 posts, Google is only showing a handful (4), and none ranking (we already rank on all other engines). A few things: 1.) I have submitted all the posts to Google to no avail. 2.) We have a functioning sitemap. 3.) There are no robot issues. 4.) The content is original and we'll written (not spammy). Most people say time, but all time is doing is reducing our handful of indexed posts ha. Ideas? Thanks!