Lucid Imagination, the startup that commercially distributes the open source Apache Lucene and Apache Solr search technology, has raised $10 million in Series B funding from Shasta Ventures with Granite Ventures and Walden International participating in the round. This brings the company’s total funding to $16 million.

Lucid powers enterprise search technologies using the open source Lucene/Solr search. Customers include Zappos, Nike and Netflix. The new funding will be used to accelerate the adoption of Lucene/Solr search technology.

Launched in 2009, Lucid is seeing revenue in the “millions,” and counts Google’s enterprise search product as a direct competitor.