Seedtag
Madrid contextual advertising company applying its Liz AI to display, online video and connected TV
Quick Overview
| Company | Seedtag Advertising, S.L. |
|---|---|
| Category | Programmatic Advertising Platforms |
| Headquarters | Madrid, Spain |
| Founded | 2014 |
| EU Presence | Yes - Spain (EU) |
| Data Location | Not stated on the pages reviewed |
| Open Source | No |
| GDPR Compliant | Yes |
| Self-Hosting | No |
| Main Features | Contextual AI (Liz), neuro-contextual targeting, CTV, online video and display, creative studio, brand safety policy, research and measurement program |
| Pricing | Not published; talk to an expert |
| Best For | Brands that prefer context-based targeting to user-level tracking |
| Replaces | The Trade Desk contextual buying, Google Display & Video 360 |
Detailed Review
Seedtag was founded in Madrid in 2014 by Jorge Poyatos and Albert Nieto, according to its about page, and the legal notice names Seedtag Advertising, S.L. in the Madrid Mercantile Register. It reports 700+ employees, 16 markets and 15 office locations.
Its pitch is that ads should match the interest, emotion and intent of the page rather than a profile of the reader, which it calls neuro-contextual advertising.
Context as the targeting signal
Liz is the company's proprietary AI that reads the context around an ad slot. The advertiser page describes planning with first-party interest data and lookalike audiences, execution with in-house creative studio, delivery over 30,000+ publishers and a feedback loop of campaign learnings.
Three channels
Solutions are organised by channel: Contextual TV for connected TV, online video and display for the open web. A curation platform and a neuro-contextual exchange page extend the offer towards publishers and buyers who bring their own deals.
Research programme
A LAB programme pairs the context data with guidance from planning to post-campaign analysis, and the homepage claims 3.5 times higher neural engagement than non-contextual ads. That figure comes from the vendor's own research.
Limitations to Consider
Seedtag is closer to a contextual media partner than a self-serve DSP: the site offers a 'talk to an expert' flow and no sign-up. No pricing is published, and the engagement claims are its own research. Reach is tied to the Seedtag network of publishers. Confirm the contracting entity in the order form for campaigns outside Europe. For hands-on bidding use BidTheatre or Adnuntius.
Who Should Use Seedtag
Brands and agencies that want cookie-free contextual campaigns in Spain, the rest of Europe and Latin America under a Spanish contract.
Pros and Cons
Pros
- Context-based targeting without user-level tracking
- CTV, video and display from one partner
- Spanish S.L. with Madrid register details
- Large publisher network
- Research and measurement program
Cons
- Managed, no self-serve seat
- No public pricing
- Engagement claims are the vendor's own
- Entity for non-European campaigns not stated
Alternatives to Seedtag
Other European programmatic advertising platforms worth comparing before you decide:
Adnuntius
Norway · Nordic marketplace, ad server and DMP with direct supply
BidTheatre
Sweden · Independent self-serve DSP run from Stockholm since 2012
Active Agent
Germany · Omnichannel DSP for display, TV, DOOH, cinema and radio
Adform
Denmark · DSP, ad server and DMP in one Copenhagen platform
See all European programmatic advertising platforms or compare them directly against The Trade Desk contextual buying on our alternatives page.
Frequently Asked Questions
It is a contextual advertising platform sold through a managed relationship. The site does not show a self-serve buying seat.
The company's term for matching ads to the interest, emotion and intent of the content around them, using its Liz AI.
The legal notice names Seedtag Advertising, S.L., with its address in Madrid and registration in the Madrid Mercantile Register.