ON24

ON24 sells a cloud-based, subscription platform for webinars, virtual events, content hubs and landing pages. It added generative AI services in 2023, and B2B marketing and sales teams use it to generate leads and pipeline. It IPO'd on the NYSE (ONTF) in 2021 and had about $139M in trailing revenue as of early 2026. Cvent acquired it in an all-cash deal of about $400M, announced in Dec 2025 and completed in April 2026, which made it private.