Apollo.io

Apollo.io combines a massive B2B contact database of over 275 million contacts with AI-powered sales engagement tools. The AI helps sales teams find ideal prospects by analyzing buying signals, job changes, funding events, and technographic data to surface accounts most likely to convert. Apollo's AI writing assistant generates personalized email sequences, LinkedIn messages, and call scripts based on prospect data. The platform scores leads automatically and recommends the best outreach timing and channels for each prospect. Beyond prospecting, Apollo provides a full sales engagement suite with email sequencing, dialer, meeting scheduler, and deal management. AI-powered analytics track team performance, sequence effectiveness, and pipeline health. The platform integrates with major CRMs including Salesforce and HubSpot.