The next big "disruptor" stock is a name most investors might not have heard of, AlphaOne's Dan Niles said Tuesday.
With 1 percent penetration in a potential market of $75 billion, RingCentral, a business-oriented, cloud-based phone system, could see big gains in its future, he added.
"There are not that many markets left that are of that size that you can disrupt," Niles said. "At AlphaOne, we're actually switching to RingCentral after having been pretty unhappy with the AT&T service that we had. And it saves us about 60 percent on our phone bill by using this new technology."