Also known as: Demand-side platform, DSP.
An AdTech platform that enables agencies and advertisers to buy inventory from Supply-side platform (SSP)s and Ad exchanges.
DSPs are typically used to purchase inventory on an impression-by-impression basis during Real-time bidding (RTB) auctions.
![An image that shows how DSPs buy inventory from SSPs and ad exchanges during real-time bidding (RTB) media transactions](https://clearcode.cc/app/uploads/2018/04/templatedsp-1024x485.png)