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Onetag

Ad Exchange

Programmatic advertising technology platform

Corporate history

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

Profile

TierMid-market (1,000+)
OwnsIts own SSP
Identity solutionsRampID (LiveRamp) · ID5
AIAI bidding
StrengthsStrong identity options · AI bidding · Self-serve account
Same publishers asMagnite · Google Ad Manager · PubMatic

Access

How you get inApplication
Minimum spendNot published

Running campaigns

Audience dataThird-party data
Deals and supplyPrivate marketplace

What you buy

FormatsHigh impact
Deal typesCurated

Reach

publishers9,128
Direct share86%
Confirmed by the exchange133 / 7,861

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 reached2.4%
Median publisher rank#179,007
Supply score68 / 100 · #25 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

Data partnership

Audigent ×2

Update

Jun 15, 2026

Onetag Dynamo Delivers 25% Lower CPA with Zero Tech Fee by Optimising Outcomes Before the Bid

Update

Jun 15, 2026

Onetag claims new Dynamo tool cuts CPA by 25% with zero tech fee

All 24 stories about Onetag