ZipRealty Inc. boosted revenue by 14.6 percent in 2009, to $120.7 million, helping the company trim its annual loss to $12.9 million, down 3.4 percent from 2008. In the final three months of the year, the Emeryville, Calif.-based brokerage company handled 6,355 transactions, a 46.6 percent increase from the same period a year ago.

Revenue was up less dramatically, growing 35.4 percent to $33.9 million, as average net revenue per transaction fell by 7.6 percent from a year ago, to $5,199. ZipRealty nevertheless posted a $2.1 million loss for the quarter, down from $2.7 million a year ago. At the end of the year, the company employed 3,085 agents, up 9.5 percent from the same time a year ago, but down 3.7 percent from the 3,205 agents employed at the end of September.