Lusha is a B2B data platform. Its job is to answer one question quickly: who exactly should we contact, and how do we reach them? It holds a large contact and company database, lets you search and filter it against your own criteria, and reveals the specific email address or phone number you ask for — one record at a time, paid for in credits.
That framing matters because it defines what Lusha is accountable for. It does not run your pipeline, send your sequences, score your deals or report on revenue. Those jobs belong to your CRM and outreach tools. Lusha sits one step earlier: before anyone can be contacted, somebody has to know who they are and trust that the details are real.
The platform has also moved toward AI-era usage. The same data is available in its workspace, through a browser extension, via an API, and through connectors that let assistants such as Claude and ChatGPT query it while you work. The economics do not change: credits are still spent revealing records, whether a person or an agent does the searching.
UK Business Stack classifies Lusha as an optional input layer for sales, in the same way a document capture tool is an input layer for bookkeeping. It is worth paying for when outbound is a weekly discipline; it becomes an expensive address book when it is not.