IT Service Providers

Gemius SA

International research firm measuring online, TV, radio and outdoor audiences for advertisers, publishers and media houses

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TrustList summary

Gemius SA is a research and technology company that measures how audiences use online, television, radio and outdoor media. Its clients are advertisers, agencies, publishers, ad networks and e-commerce companies in many countries.

Products and services

Audience measurement: consumption data across online, TV, radio and outdoor media, including large closed platforms.
Cross-media analytics: evaluation of campaigns after they run, across several channels.
Traffic analytics: measurement of website and app visits.
Campaign monitoring: a real-time system for tracking advertising campaigns.
Ad serving: a tool for online and TV publishers.
Engagement visualisation: a view of how visitors interact with a site.

Who it serves

Marketers, publishers, advertising agencies, media houses and online retailers.

Key facts

Experience: more than twenty years in online audience measurement
Cross-media focus: since 2018
Clients: nearly two thousand companies, according to its earlier profile

Summary written by TrustList from the business's own published information, Oct 2026.

Categories & features

Gemius SA rankings

Gemius SA is ranked on 1 TrustList ranking at #31.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Gemius SA has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

It service provider · 1 ranking

#31of 223
E commerce development
It is the only one of the top 94 here listing advertising and one of 6 here listing IT solution.
Of the top 94 here, 86 also cover eCommerce and 77 also cover web development; 6 also work in Delhi NCR and 5 also work in Ahmedabad.
Behind Bigger Picture.

As of 2026-11-14. Organic ranks only; sponsored placements are never ranks. How TrustList ranks