Ad tech firm Vantage Media has rebranded to Katch to focus on engaging in-market shoppers through its real-time bidding platform.

The December sale of Vantage’s education services business to Santa Monica college resource site Campus Explorer marked its final step toward fully investing its time in its advertising business, which has fueled its growth. The El Segundo company last year ranked No. 72 on the Business Journal’s annual list of fastest-growing private companies, posting $143 million in revenue in 2013, an 81 percent increase over the previous two years.

Vantage’s ad verticals have also been renamed: health insurance to, auto insurance to, higher education to and lending to

"Starting in 2010, we invested in technology to become a product company,” Chief Executive Patrick Quigley said in a statement. “Now that we're fully there, it makes sense to change the name to better reflect the business we've become – the leading RTB platform to engage every buyer.”

Staff reporter Melissah Yang can be reached at Follow her on Twitter @MelissahYang for the latest in L.A. tech news.

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