I'm a former employee of Tangoe, regardless of those short selling I can tell you that those allegations of Tangoe cooking the books are true. These guys are nothing more then a Ponzi scheme.  They use investor money to acquire other companies and then claim their revenue then use those numbers to acquire more investor money to acquire more companies, etc...  However, if you look at the numbers Tangoe has never been (except for a short stint after they acquired the company I used to work for calling billingIT/Informatio​n Strategies group as we built a open-source based distributed high volume TEM platform which Tangoe acquired which was very profitable) profitable, is not profitable and never will be profitable as their model is not profitable.  It doens't matter if they acquire 100% of the market share -- even then they will not be profitable.  They are merely a pump and dump.  If you look the board, investors and execs have all been dumping their socks while they can still cash out.  This also reeks of insider trading. They should be in prison right next to Madoff (another crook I also used to work for).