Clay

Clay works like a spreadsheet where each column can fetch data. You start with a list of companies or people, then add columns that look up details from dozens of data providers, scrape websites, or ask an AI model to research and summarize something about each row.

Because it checks several providers in order, it can fill gaps that one database would miss, such as a work email or a company's tech stack. The results can feed personalized outreach, lead scoring or routing, and sync back to HubSpot, Salesforce or a sequencing tool.

Growth and sales operations teams use it to build targeted lists and enrich CRM records. It has a learning curve, and costs depend on how many lookups you run, so test a small list before enriching a whole database.