Rocket Fuel continued its growth trajectory last quarter, with revenue more than doubling, the company reported.
The digital advertising tech firm generated $85.6 million in the fourth quarter, 113 percent greater than the same period the year prior. For full-year 2013, Rocket Fuel's revenue grew 126 percent to $240.6 million.
The company went public last year, and shares have been volatile. But in after-hours trading, they trended upward on the quarterly results. Rocket Fuel stock rose nearly 4 percent to $54.75 per share.
The company still doesn’t turn a profit, however, posting a more than $20 million loss last year. A net loss of $2.2 million in the fourth quarter compares to a loss of $5.9 million during the year-ago period.
Rocket Fuel said it doubled its customer base last year versus 2012 and that revenue from mobile, social and video channels improved 721 percent. Revenue from those areas accounted for 32 percent of sales, or $27.4 million, in the fourth quarter.
The company also announced new products, rolling out its Mobile Advertising Suite, which enables a company to place ads across a number of real-time mobile bidding exchanges. The products also offer data on user locations and apps.
Rocket Fuel is a closely watched company in the ad space, as it and other tech firms have recently made public stock offerings. Criteo, Tremor Video and YuMe are among those that have already gone public, while PubMatic and The Rubicon Project recently announced plans to do so.