Apollo.io› offers Apollo Data

Apollo Data is the B2B contact and company data offering of Apollo.io. It supplies verified business email addresses, mobile numbers, and direct dials alongside company firmographic and technographic records. The dataset is assembled from Apollo's contributor network, public web data, and contracted third-party providers, and records are cross-checked across those sources rather than drawn from a single origin.

Quality is maintained through multi-step email verification and real-time phone verification, with records refreshed when Apollo captures a change such as a job move or a new email address. Beyond contact and firmographic detail, the offering carries buying signals including job changes, new hires, funding rounds, company news, third-party intent data, and website-visitor identification, exposed to buyers through a large set of contact and account filters. Apollo.io operates the offering as a registered business-to-business data broker and publishes its collection and privacy practices for it.