RichRelevance, a retail technology company, has raised USD 8milion from RTP Ventures, Shea Ventures, Gray Ventures and existing investor Tugboat Ventures. The funding is part of a larger USD28 million round that also included Crosslink Capital, Greylock Partners and Draper Fisher Jurvetson. The company, based in San Francisco, develops technology which allows retailers to offer their customers product recommendations and more personalised shopping experiences. RichRelevance aims to using the financing to invest in product development and global expansion.