David Steinberg is a true dealmaker. He has founded and sold multiple companies. Some rising to be worth over a billion dollars. On top of that, he has acquired at least 11 companies over the last 11 years, in addition to making 27 startup investments through his fund.

Zeta Global continued its annexation of the demand-side platform (DSP) category on Wednesday, closing a deal with IgnitionOne to take over as its default DSP.

Advertising technology service Sizmek Inc. is seeking bankruptcy-court approval to sell its digital-ad marketplace to Zeta Global Holdings Corp. for up to $36 million, the first such asset sale since Sizmek filed for chapter 11.