Some of your best prospect sources are not databases. They are a conference attendee page, an association member directory, a marketplace listing. Copy-pasting those into a spreadsheet is a job nobody enjoys.
The Sellvance browser extension captures company and person data from the page you are on and sends it into a segment in your workspace. It handles both single records and list pages, so a directory of eighty members becomes eighty leads in one pass rather than eighty clicks.
Captured records go through the same pipeline as everything else — deduplicated against your existing leads, then enriched and qualified by whatever automations that segment runs.