It's no secret the cloud space is exploding with growth and that includes cloud names that don't get much attention, such as Ring Central (RNG - Get Report) .

Shares are up over 80% since the start of the year, compared to the S&P 500's 8% gain.

Founded in 1999, Ring central is a cloud communications company and works with a host of major companies like Marriott International (MAR - Get Report) and Hyatt Hotels Corporation (H - Get Report) .

"We place legacy hardware solutions from companies like Cisco (CSCO - Get Report) with a pure cloud based implementation. We tear out old hardware and provide a SaaS solution," said Vlad Shmunis, Ring Central's CEO.

Now watch: Jim Cramer: These 7 Cloud Kings Continue to Trounce the S&P 500