Apollo.io
B2B contact database and outreach platform for finding and reaching leads
AI Sales & Outreach

Lead data enrichment and outbound automation pulling from many sources



Clay combines many data providers into one table, then enriches leads and drafts outreach using its research agent, Claygent. A solo founder can build a lead list and personalize messages without wiring together separate tools. The free plan includes 6,000 actions a year, and you can bring your own API keys for data providers.
B2B contact database and outreach platform for finding and reaching leads