health-care it
Fairfax firm acquires Columbia’s 7Delta

ManTech International, a Fairfax-based defense contractor, has agreed to acquire Columbia-based health-care IT firm 7Delta for an undisclosed sum.

Maryland defense contractor 7Delta provides software development, program management, information assurance and other technical services to defense and civilian customers in the federal government, including the Department of Veterans Affairs.

This is ManTech’s second acquisition in recent months. In February, the Virginia company acquired Allied Technology Group, a Rockville, Md.-based engineering and information management solutions firm contracting with the Department of Homeland Security.

— Mohana Ravindranath

Mobile computing
Competition for ads on devices heats up

The competition for advertising on mobile applications is in full swing, with Twitter, Facebook and Google ramping up efforts.

Twitter said it will offer ads across the mobile Web that are customized to blend into a site’s content. Facebook has been testing a mobile-ad network of its own. And Google unveiled more ways for developers to drive app downloads, days after Twitter announced a similar offering.

The new tools are a big change from this time last year, when Facebook was beaten down by investors concerned that the company’s shift to mobile was too slow and when Twitter’s advertising was limited to its own application. This year, the two companies are making moves to grab mobile-ad dollars by offering marketing services outside their own social networks and Web sites, something Google has been doing for years.

While Google is the No. 1 provider of mobile ads, its share of the $31.5 billion market is slipping. The Internet-search company is set to grab 47 percent of the market this year, down from 49 percent in 2013, according to EMarketer. Facebook may nab 22 percent in 2014, compared with 18 percent last year, while Twitter should get 2.7 percent this year, up from 2.4 percent.

— Bloomberg News