Axios, a news and business technology company, said it had been acquired by the online news conglomerate for $1.5 billion.
The deal, which also includes the company’s parent company, Yahoo!, is expected to close by the end of the year.
Axios has grown rapidly in recent years.
In February, the company said it would pay $1 billion for a stake in its parent company in exchange for Yahoo acquiring its business.
The news comes amid increasing concerns that technology companies are moving to consolidate their businesses in an effort to save costs.
In January, Yahoo announced it would sell its media business to Verizon for $4.7 billion.
Yahoo is also in talks to buy AOL.