The financial backing of Boston-based VC firm Summit Partners and the guidance of veteran technology executive W. Scott Webber-best known locally as the former CEO of Software Artistry Inc. - enabled Autobase to more than double its annual revenue to $20 million during the three-year span. Adding Autobase to its stable makes good sense for Dominion, said Thilo Koslowski, vice president and lead automotive analyst at Stamford, Conn.-based technology research firm Gartner Inc. "That's the beauty of it for dealers; it makes it easier to source [the auto subsidiaries] rather than having to establish different relationships with a dozen of them," he said.