What are the best supply side platform (ssp) software?

# Best Supply-Side Platform (SSP) Software

## Top Enterprise SSPs

| Platform | Best For | Key Features |

|----------|----------|--------------|

| **Google Ad Manager** | Large publishers | Massive demand, header bidding, analytics |

| **Magnite** | Premium publishers | Video/CTV focus, cross-channel |

| **PubMatic** | Mid-large publishers | Programmatic, header bidding |

| **OpenX** | Quality inventory | Brand safety, private marketplace |

| **Xandr (Microsoft)** | Enterprise | Advanced targeting, data integration |

## Strong Contenders

- **Index Exchange** – Transparent, publisher-focused

- **Sharethrough** – Native advertising specialist

- **TripleLift** – Native & branded content

- **Sovrn** – Good for mid-size publishers

- **Criteo** – Retail media focus

## Video/CTV Specialists

- **SpotX** (now Magnite)

- **FreeWheel** (Comcast)

- **SpringServe**

## Key Factors to Consider

- **Fill rates & CPMs**

- **Header bidding support**

- **Demand partner connections**

- **Reporting & analytics**

- **Minimum traffic requirements**

- **Revenue share/fees**

- **Brand safety tools**

## For Smaller Publishers

- **Ezoic**

- **Monumetric**

- **AdThrive/Raptive**

Would you like more detail on any specific platform or use case?