Apollo.io

Apollo.io is a B2B sales intelligence and outbound engagement platform founded in 2014 and headquartered in San Francisco. The company provides sales teams with prospect research data, account intelligence, and tools for automated and personalized outreach campaigns. Apollo combines web scraping, company data aggregation, and email verification to help revenue teams identify prospects and execute large-scale prospecting campaigns. The platform serves mid-market and enterprise sales organizations across various industries. Apollo is privately held and operates in the competitive sales and marketing software market.