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Marketing analytics company Zeta Interactive closed its series D round with $125 million, the startup announced today.The investment is a mix of debt and equity from Blackstone’s GSO Partners.

Zeta’s COO Steve Gerber told VentureBeat that the startup “aligned well” with GSO, apparently because of its “great reputation and great track record.”

“We were fortunate that they were able to take this on their own and we are very excited,” Gerber said.

Despite the large amount of money involved in the investment, GSO will not join Zeta’s board. However, the capital’s principal Brad Colman will be “active in meetings,” the COO explained.

Zeta says it provides companies a comprehensive solution, with real-time analytics and machine learning tech to help them “acquire, retain and monetize companies”

Gerber told VB that the funds from the round will be used for “strategic acquisitions” and that they are “always evaluating opportunities.” The $125 million will also target expansion in the U.S and U.K. markets.

One of the startup’s latest acquisitions was marketing software company ClickSquared.

Zeta Interactive has raised at least $205 million to date.

Updated at 7:25 a.m. PT : A previous version of this post had the name GSP Partners. It is GSO Partners and has been corrected.

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