COMPANY

About Us

Programmatic Technology Built for the Buy Side

Onetag was founded in 2015, taking its name from our very first publisher integration solution. From there, we quickly became a trusted DSP partner for Dentsu, Publicis, Omnicom, GroupM and Havas Italy. We also had the opportunity to fully replacing Hawkeye by AudienceScience for P&G Italy – a milestone that showcased our ability to deliver quality outcomes scale.

To support publishers we launched a unique Prebid tech integration that dramatically streamlined supply partner onboarding and performance.

During this period we also built the first iterations of our intelligent supply optimization technology: ensuring media quality that converts for buyers on inventory that performs from publishers.

Giving Buyers and Publishers
the Assist They Need

By 2020 we expanded globally, helping publishers and advertisers worldwide leverage our advanced programmatic technology.

We launched the Onetag Global Exchange, integrated today with all major demand platforms, and driving results for over 2,000 premium publishers and 5,000 advertisers worldwide. Our sell-side decisioning eliminates programmatic waste by optimizing for the impressions that matter, at the optimal price for the buy side.

The Onetag Smart Curation Platform is vertically integrated with our exchange, giving curators free, seamless access to sell-side deal creation and activation. With powerful curation levers and precise targeting, we ensure buyers hit their quality goals in their DSP seats of choice.

Our competitive edge for media quality is founded on exceptionally efficient infrastructure, enabling us to process and analyze vast volumes of data. This powers our AI Engine, built for real-time decisioning that drives faster, better buy-side outcomes.

Creating a new Value Exchange for the Open Internet

Following our acquisition of Aryel, the Italian ad tech company specializing in immersive and interactive advertising experiences, we have moved into a new phase of Onetag’s evolution as the next-generation value exchange for the open internet.

For the first time, quality media, creative technology, data and AI-driven decisioning are being brought together to deliver measurable business outcomes at scale.

By integrating Aryel, Onetag brings together three critical pillars in a single proprietary platform:

Quality media, a global exchange connected directly to premium publishers
Immersive, high-impact creative experiences, designed to drive meaningful user interaction with formats that brands love
AI-driven decisioning for outcomes, optimizing campaigns toward concrete business objectives rather than surface-level metrics

All of this is delivered through one truly self-service solution, removing operational complexity to support higher adoption, while empowering buyers and advertisers to secure successful outcomes.

Headquartered in Italy,
Growing Globally

Together Onetag and Aryel are driving growth across Europe, the U.S. and Globally – led by a diverse, friendly and focused team committed to making programmatic advertising work better for everyone.