Purchased health insurance lead lists have three problems: they are expensive, they are sold to multiple brokers simultaneously, and by the time you use them, many contacts have already been approached by competitors or no longer have the need that made them a lead in the first place. The alternative is building a prospecting system from public data that is free, current, and exclusive — because you are monitoring it yourself rather than buying a processed version of it.
The Public Data Sources That Replace Purchased Lists
Four public data sources reliably identify people with an active health coverage need. State business registration databases (Secretary of State filings) identify newly self-employed individuals the day they file. Job board data identifies small businesses that are hiring and may need a group plan. LinkedIn posts identify professionals announcing career transitions. Funding announcement databases identify startups entering their hiring phase.
None of these require a purchased list. All of them are publicly available. The cost to access them is either free or low (API fees, aggregator subscriptions). The contacts they generate are identified by a specific, current event — not by demographic matching against an old database.
Contact Enrichment: Finding the Email Address
Public data sources provide names and companies. Getting to a verified email address requires a contact enrichment step — a tool like Hunter.io, Apollo.io, or similar that matches name and company to a professional email address. This step has a cost (typically per-enrichment or subscription-based) but is far cheaper than purchasing a pre-built lead list.
Putting It Together
The complete system — signal detection, contact enrichment, personalized outreach, CRM logging — is what the Health Insurance Broker Signal Engine demonstrates. It shows exactly how four public data sources flow through an automated workflow into personalized broker emails, without any purchased lead list in the process.