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Contextual advertising solution for global brands

201-500 employees
  • B2B
  • Artificial Intelligence
  • Enterprise
  • Analytics
  • Machine Learning
  • SaaS
  • Advertising
Justicia, Madrid, MD

Company mission

To inspire not only their own people but also their partners and clients, continuously challenging the market and taking advertising into a new era.

Few candidates hear
back within 2 weeks

44% employee growth in 12 months

Otta's take

Theo Margolius headshot

Theo Margolius

COO of Otta

The advertising industry is undergoing a significant change in terms of targeting audiences. In the next few years, it's expected that brands will no longer be able to leverage third-party cookies to reach target audiences. Without the use of cookies, Seedtag is best positioned to provide a deep understanding of consumers' interests, build a contextual strategy based on data and gather a range of insights that can help brands improve their results.

Already the leader in contextual advertising in EMEA and LATAM, the company intends to use funds to expand into the US market and continue investing in its contextual AI technology. Following the funding, the company has acquired KMTX (previously Keymantics), a French company specialised in building AI models to optimise and automate performance campaigns. By merging with KMTX, Seedtag can now provide advertisers with a full-funnel cookie-less solution that delivers results for both branding and performance objectives.

Seedtag has achieved significant growth following further development and improvement of its product capabilities. Looking forward, the company is set on strengthening its position in the US and has high hopes for expanding further afield.


  • Access to a flexible benefits plan (plan de retribución flexible) with restaurant, transportation and kindergarten tickets and discounts on medical insurance
  • Access to learning opportunities (learning & development budget)
  • A great workplace location with food, snacks, great coffee and much more
  • We love what we do, but we also love having fun. We have many team activities you can join and enjoy with your colleagues!
  • Optional company-paid English and/or Spanish courses
  • Real flexible work methodology. The option to work from home when you need to, also real flexible working hours

Company values


Funding (last 2 of 6 rounds)

Jul 2022



Sep 2021




Total funding


Jorge Poyatos


Experience as Industry Strategist for Google, and Entrepreneur at Endeavor for 5 years.

Albert Nieto Riera


Previous Retail, Automotive & CPG Industry Analyst at Google for 2 years, and Advisor for Crowdcube Spain.

Jobs (7)

All locations

Software Engineering