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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

TierEnterprise (10,000+ publishers)
OwnsOwn SSP
Identity solutionsRampID (LiveRamp) · ID5
AIAI bidding
StrengthsStrong identity options · AI bidding · Self-serve account
Same publishers asMagnite · Google Ad Manager · PubMatic

Access

AccessApplication
Minimum spendNot published

Running campaigns

Audience dataThird-party data
Deals and supplyPrivate marketplace

What you buy

FormatsHigh impact
Deal typesCurated

Reach

publishers23,669
Direct share85%
Confirmed by the exchange144 / 20,124

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#185,074
Ad spot score69 / 100 · #16 of 1,179

How to place an ad

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

In the news

Update

Jun 15, 2026

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

Update

Jun 15, 2026

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

All 20 stories about Onetag

As an SSP: DSPs that buy through Onetag

1 DSP

Exchanges selling the same publishers as Onetag

8 exchanges

Publishers Onetag can sell

Which publishers this platform can sell, largest first.