ON24 vs ElevenLabs
Side-by-side comparison of AI visibility scores, market position, and capabilities
B2B digital event platform with $160M revenue; webinar engagement data (poll responses, downloads, time watched) as first-party pipeline intelligence feeding Salesforce and Marketo.
About
ON24 is a digital experience platform for B2B marketing, enabling companies to run webinars, virtual conferences, and on-demand content experiences that capture audience engagement data and convert viewers into qualified sales pipeline. Founded in 1998 and headquartered in San Francisco, ON24 is listed on NYSE (NYSE: ONTF) and generates approximately $160 million in annual revenue serving enterprise marketing teams at companies including Microsoft, SAP, and Merck who use digital events as a primary demand generation channel.\n\nON24's platform goes beyond basic webinar hosting — every attendee interaction (poll responses, Q&A questions, resource downloads, content watched, time spent) is captured as first-party engagement data that flows into CRM and marketing automation systems (Salesforce, Marketo, HubSpot) as behavioral intent signals. This transforms webinars from one-way broadcasts into data-generating demand generation assets. ON24 Intelligence analyzes this engagement data to score prospects by their buying signal strength based on their webinar behavior patterns.\n\nIn 2025, ON24 operates in the digital events and webinar platform market that exploded during COVID-19 and has since contracted as in-person events returned. The company has repositioned from "webinar platform" to "digital experience platform" emphasizing the first-party data and pipeline generation value rather than the meeting technology. ON24 competes with Zoom Webinars, Hopin (now RingCentral Events), Cvent, and video marketing platforms for B2B event and content marketing budgets. The 2025 strategy focuses on ON24 AI-powered personalized content experiences (where each viewer sees customized content based on their profile), growing its Content Hub (always-on content experience) product, and helping marketers demonstrate revenue attribution from digital events.
$500M Series D at $11B valuation (Feb 2026) — largest voice AI funding round ever. $330M ARR; 1M+ developers using the API. Enterprise customers: Deutsche Telekom, Revolut, Meta, Salesforce. Voices in 32 languages; real-time cloning from 1 second of audio.
About
ElevenLabs was founded in 2022 by Piotr Dabkowski and Mati Staniszewski, two former Google and Palantir engineers who set out to break the language barrier using AI voice technology. The company specializes in AI-powered voice synthesis, cloning, and dubbing, enabling developers and enterprises to generate human-quality speech in over 30 languages. Its core technology combines deep learning models trained on massive speech datasets to produce natural-sounding voices indistinguishable from real humans.\n\nElevenLabs offers a suite of products including its flagship text-to-speech API, voice cloning tools, and an AI dubbing platform that localizes video content while preserving the speaker's original voice. Its products target a broad audience—from indie developers building audio apps to large enterprises deploying voice interfaces at scale. Key differentiators include ultra-low latency streaming synthesis, fine-grained voice customization, and a growing library of pre-built AI voices across accents and styles.\n\nElevenLabs has grown rapidly, surpassing $330M in annualized revenue and serving over 1 million developers. Enterprise clients include Deutsche Telekom, Spotify, and leading media companies. In February 2026, the company closed a $500M Series D at an $11B valuation, cementing its position as the market leader in AI voice. Its APIs power podcasts, audiobooks, video games, and customer service bots worldwide, making ElevenLabs the default infrastructure layer for AI-generated audio.
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