RingCentral
RingCentral is noteworthy because of its many strategic partnerships in recent years, Arnold said.
“RingCentral has skillfully assembled a series of strategic partnerships, looking to expand its global footprint,” Castanon said. “These partnerships, which include big names such as Alcatel-Lucent Enterprise (ALE), Avaya, Mitel and European IT services firm Atos, are a strong testament to the company’s product vision.”