Infillion acquires Foursquare

In September 2026, Infillion announced the acquisition of Foursquare, the well-known location intelligence and data platform, in a move that significantly expands Infillion's data and targeting capabilities. Foursquare, originally founded as a consumer check-in app, had evolved over the years into a leading provider of location data, place intelligence, and audience targeting solutions used widely across the AdTech and marketing ecosystem. The acquisition adds Foursquare's extensive Points of Interest (POI) database, foot traffic measurement tools, and location-based audience segments to Infillion's growing stack of advertising technology assets.

This acquisition positions Infillion as a more formidable player in the location intelligence and data-driven advertising space, directly competing with companies like Near Intelligence, Placer.ai, and GroundTruth. By integrating Foursquare's location data assets, Infillion can offer advertisers richer audience targeting, improved attribution, and stronger measurement capabilities — particularly for offline-to-online conversion tracking. The deal reflects a broader industry trend of consolidation in the AdTech space, where mid-tier platforms are aggressively acquiring data assets to differentiate in a post-cookie, privacy-constrained environment. It also underscores the enduring value of first-party and permissioned location data as a cornerstone of modern advertising targeting and measurement strategies.