Magnite – Adspotfinder

Corporate history

Companies that became part of Magnite through acquisitions and mergers, from the reports that confirmed them.

Acquired streamr.aiSeptember 2025Source
Acquired SpotXApril 2021Source

Profile

TierEnterprise (10,000+ publishers)

SpecialtyCTV · Audio · DOOH · Open web

OwnsIts own SSP

Identity solutionsRampID (LiveRamp)

AIAgentic buying

Same publishers asGoogle Ad Manager · PubMatic · Microsoft Monetize

Running campaigns

Audience dataFirst-party audiences · Third-party data

Deals and supplyPrivate marketplace · Programmatic guaranteed · Curated deal

What you buy

FormatsDisplay · Video · CTV · Audio · DOOH

Deal typesPMP

Reach

publishers28,114

Direct share51%

Confirmed by the exchange1,229 / 14,223

Where its publishers are

Italy410+149 more

North America · Latin America · Europe · Middle East & North Africa · Sub-Saharan Africa · South Asia · East Asia · Southeast Asia · Central Asia & Caucasus · Oceania

Quality

Ad-heavy sites reached2.2%

Median publisher rank#150,117

Exclusive ad spots1 (0%)

Supply score64 / 100 · #65 of 1,175

How to buy

How to open an account here, what it takes and the minimum spend.

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In the news

Auction infrastructure

Browsi

Buying access

Dentsu ×3, Yahoo DSP ×2, Adform, The Trade Desk, Shopsense

Data partnership

Anoki ×2, PubMatic ×2, Cognitiv, Index Exchange, FreeWheel, Microsoft Monetize +2

Inventory integration

Index Exchange ×2, The Trade Desk ×2, PubMatic ×2, MNTN, Amazon Publisher Services, Playwire +1

Update

Sep 23, 2026

Magnite Named Primary Video Ad Server and a Programmatic Technology Provider for HP TV+

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Launched

Sep 16, 2026

Magnite extends its AI agent orchestration across formats

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All 41 stories about Magnite