Santa Monica-based Clearstone Ventures has had another exit in its portfolio, this time with the acquisition of Cetas, a developer of cloud data analytics software, by VMware. Financial terms of the acquisition were not disclosed. Cetas was incubated in Clearstone's Palo Alto offices by Sudhakar Muddu, a Ph.D. from UCLA. The acquisition is the third acquisition involving either EMC or VMware from Clearstone's portfolio, including Muddu's last company, Kazeon (acquired by EMC in 2009), and IT management software provider Integrien (acquired by VMware in 2010). Sumant Mandal sat on the board of Cetas.