An AI-powered sales platform providing access to 275M+ contacts and automated outreach workflows to accelerate revenue.
Apollo.io is an all-in-one B2B sales intelligence and execution platform that helps sales teams find, engage, and close more deals. It provides access to a massive database of over 275 million contacts and 73 million companies. Using advanced AI, Apollo streamlines the sales process with AI-powered lead scoring, AI writing assistants for personalized outreach, and automated Sales Plays that trigger actions based on buyer behavior and intent data.
Apollo serves as a central engine for sales prospecting and outreach:

Apollo.io helps organizations maintain data integrity within their CRM systems. By constantly monitoring job changes and company updates, the platform ensures that sales and marketing teams are never working with stale data. This automated enrichment prevents bounced emails and wasted effort, allowing teams to maintain a reliable and actionable view of their market.
Sales development teams use Apollo.io to overcome the limitations of generic cold outreach. The AI Writing Assistant analyzes prospect profiles to generate personalized messaging at scale, increasing open and response rates. This automation ensures that every email feels hand-crafted, building trust with the recipient while maintaining high outreach volume.
Apollo.io is the primary engine for high-precision B2B lead generation. Sales professionals leverage its massive database to find contacts that perfectly match their target persona. By combining buying intent data with verified contact info, teams can build highly targeted lists that ensure their outreach efforts are focused on prospects most likely to convert.
Operations managers deploy Apollo.io to create AI-driven sales workflows that react to real-world triggers. By automating the transition from a market signal to a sales action, teams can engage prospects faster than competitors. These Sales Plays ensure that no opportunity is missed and that outreach is always timely and relevant to the prospect's current situation.
This tool is specifically for B2B sales teams and growth hackers looking to combine massive lead databases with automated, AI-driven outreach. It provides a more unified "all-in-one" prospecting-to-closing experience than using separate tools like LinkedIn Sales Navigator and HubSpot.