Does Google have a DSP?

Google offers Google Marketing Platform which is a DSP. Google also reviews other demand-side platforms to ensure guaranteed and predictable campaign delivery. Google Ads is a demand-side platform that exclusively sells its own inventories while other DSPs like Google Ad Manager make it possible to buy inventory from other suppliers.

Google collaborates with demand-side platforms to ensure that DSP’s delivery meets publishers’ expectations and delivers a predictable campaign.

So, Google Marketing Platform is a DSP that helps publishers to sell their inventories to advertisers of all kinds.