Companies
3,806 companies in the AdTech ecosystem
Lefty
Influencer Marketing Technology
Lefty is an influencer marketing platform that empowers brands to discover, manage, and measure their influencer campaigns effectively. It offers a comprehensive suite of tools for influencer discovery, campaign execution, and performance analytics, enabling data-driven marketing strategies.
Lemma
Programmatic Advertising Platform
Lemon8
Social Commerce / Influencer Marketing
Lemon8 is ByteDance's Pinterest-style lifestyle/inspiration app launched 2020 (international 2022). Subject to PAFACA Act + Apple geoblocking in US (March 2026); was NOT included in TikTok USDS JV. Actively marketed in US 2024-2025.
Lemonlight
Video Production & Creative Services
Lemonlight is a video production and creative services company that helps brands create high-quality video content for marketing and advertising campaigns.
LendIt Fintech
B2B Events & Media (Fintech-focused)
LendIt Fintech operates a global event and media platform focused on connecting the fintech lending and digital banking ecosystem.
Lens Studio
Augmented Reality / Social AR Advertising
Snap's creator tool for building AR lenses. Free desktop app, foundation of the Lens Creator program.
Leo
Creative Advertising Agency
Publicis Groupe's largest creative network, formed Jan 2025 by merging Leo Burnett and Publicis Worldwide (~130 agencies, 15,000 staff across 90 countries).
Leo Burnett
MergedCreative Advertising Agency
Leo Burnett is one of the world's most iconic global advertising agencies, known for creating legendary brand characters and emotionally resonant campaigns, operating today as a subsidiary of Publicis Groupe.
Leo Burnett Dublin
Creative Advertising & Brand Communications
Leo Burnett Dublin is the Irish office of the globally renowned Leo Burnett creative advertising agency, delivering integrated creative campaigns and brand communications for major Irish and multinational clients.
Leo Burnett London
Creative Advertising Agency
Leo Burnett London is a leading creative advertising agency and part of the global Leo Burnett network, delivering brand-building campaigns across multiple channels for major international clients.
Letgo
AcquiredClassifieds & Marketplace Advertising
Letgo was a popular mobile classifieds marketplace for buying and selling secondhand goods locally, which merged with OfferUp in 2020 to form the largest mobile C2C marketplace in the US.
Letterboxd
Social Media / Entertainment
Letterboxd is an AdTech Platform that provides a social network and movie discovery platform for film enthusiasts.
LexisNexis Risk Solutions (Marketing Services)
Data & Identity Resolution
LexisNexis Risk Solutions provides data and analytics services including audience data, identity resolution, and consumer intelligence used by marketers and advertisers for targeting and measurement. The company's marketing services division offers access to vast consumer data assets for segmentation, onboarding, and suppression use cases. It competes with other data broker and identity resolution providers in the AdTech ecosystem.
Leyi
AcquiredMobile Gaming / In-App Advertising
Mobile gaming studio. Divested to Tripledot June 30 2025.
LG
Connected TV Advertising / OEM Ad Platform
LG is a global electronics and home appliances manufacturer that operates LG Ad Solutions, providing connected TV advertising and data-driven marketing solutions.
LG Ads Solutions
AcquiredConnected TV (CTV) Advertising & Measurement
LG Ads Solutions is LG Electronics' advertising platform that enables brands to reach audiences across LG's smart TV ecosystem and connected devices through advanced targeting and measurement capabilities.
LG Electronics
Consumer Electronics / Connected TV Advertising
South Korean multinational electronics conglomerate. #2 global TV manufacturer (~120M+ smart TV footprint). Parent of LG Ad Solutions (the AdTech arm formed via the 2021 Alphonso acquisition). Stub created for ATDb hierarchy modeling — full enrichment deferred.
Libsyn
Podcast Hosting and Advertising
Libsyn is a leading podcast hosting and distribution platform that provides podcasters with tools for publishing, monetization, and analytics.
Life360
Location-Based Advertising and Data Intelligence
Family safety and location-sharing platform that has expanded into advertising through its location data and audience insights capabilities.
Lifesight
Marketing Technology (MarTech) - Location Analytics & Attribution
Lifesight is an enterprise-grade customer intelligence and location analytics platform that specializes in bridging the gap between digital marketing activities and real-world customer behavior. The company has developed sophisticated technology infrastructure capable of processing billions of location signals daily, combining geospatial data, location intelligence, and advanced multi-touch attribution modeling to deliver comprehensive online-to-offline (O2O) attribution capabilities. This en...
Lifestreet
Mobile User Acquisition / Programmatic Advertising
Lifestreet is a programmatic advertising platform focused on mobile app user acquisition, using machine learning and reinforcement learning algorithms to optimize campaign performance for app developers and performance marketers. The company operates its own DSP with deep integrations into mobile supply sources and emphasizes predictive bidding technology. Lifestreet has a particular strength in gaming and subscription app verticals.
LiftDNA
AcquiredProgrammatic Advertising / Supply-Side Platform
Supply-side platform acquired by OpenX February 27 2012.
Liftoff
AcquiredMobile App Marketing & Programmatic Advertising
Liftoff is a leading mobile app marketing and retargeting platform, helping app developers and brands drive installs, engagement, and revenue through data-driven strategies and proprietary technology.
Ligatus
MergedNative Advertising
Ligatus was a Cologne, Germany-based native advertising platform — leading native ads in Europe with 37B+ monthly impressions pre-acquisition. Acquired by Outbrain February 2019 from Gruner+Jahr (Bertelsmann subsidiary). Sunset/wound-down by Outbrain in 2020 as part of platform consolidation.