DiscoverOrg

Was a top-tier B2B sales intelligence provider before merging with ZoomInfo to form the dominant player in the space

DiscoverOrg was a pioneering B2B sales intelligence and data platform founded in 2007 and headquartered in Vancouver, Washington. The company built its reputation on providing highly accurate, human-verified contact and organizational data — including direct-dial phone numbers, email addresses, org charts, and technographic data — targeting sales, marketing, and recruiting professionals who needed reliable intelligence to reach decision-makers at enterprise organizations. Unlike competitors that relied solely on automated data harvesting, DiscoverOrg employed a team of researchers to verify and refresh its data, resulting in industry-leading accuracy rates that became a core differentiator. The platform served thousands of B2B companies across technology, finance, healthcare, and other verticals, helping revenue teams prioritize accounts, personalize outreach, and shorten sales cycles. DiscoverOrg grew aggressively through organic expansion and strategic acquisitions, including the purchase of RainKing in 2017, which significantly expanded its coverage of IT, marketing, and finance buyer personas. By 2018, the company had raised over $500 million in funding and was widely regarded as one of the most valuable private companies in the sales intelligence space. In 2019, DiscoverOrg acquired ZoomInfo — a competing contact database platform — and subsequently rebranded the combined entity under the ZoomInfo name. The ZoomInfo brand was chosen for the go-forward identity, and the DiscoverOrg brand was retired. ZoomInfo went public on the Nasdaq in June 2020 under the ticker ZI, becoming one of the largest AdTech and MarTech IPOs of that year. The DiscoverOrg platform and its capabilities were fully absorbed into the ZoomInfo product suite.