Semasio

Semasio is a contextual targeting and semantic audience solutions provider that enables marketers to reach consumers through privacy-compliant digital advertising. The company's platform combines audience, contextual, and brand fit targeting capabilities across 50 countries and supports more than 30 languages. Its semantic engine analyzes web content to create targetable audiences based on historic browsing behavior and contextual signals. Through its ContextualPLUS product launched in April 2024, Semasio can generate precise contextual targeting segments from as few as 300 seed records. The platform's First Context technology identifies, crawls, and annotates web pages within 2.1 seconds to five minutes of publication, allowing advertisers to reach users when content is most relevant. Campaigns using this technology typically see a 20% performance increase in the first 24 hours after content publication. In April 2022, Semasio was acquired by Fyllo and operated as Fyllo|Semasio until April 2024, when it rebranded back to Semasio. The company's Multi ID solution, launched in June 2024, harmonizes different identifiers including cookies, Mobile Advertising IDs, hashed email addresses, and signal agnostic IDs to enhance consumer identifiability in a post-cookie environment.

Key customers and partnerships

Semasio serves global agency holding groups, independent agencies, and major technology providers. In March 2024, the company partnered with Fluent Inc. to launch a contextual advertising solution combining Fluent's first-party survey data with Semasio's semantic targeting. In May 2024, Semasio collaborated with Reklaim to launch Factory, enabling data monetization through its platform. The company also maintains partnerships with NewsGuard for brand safety, helping advertisers avoid placements on misinformation sites, and with Gravy Analytics for location-based contextual targeting. Notable clients include Publicis Media and Omnicom Germany.