Apollo.io

Apollo.io is a software company that offers an AI-powered go-to-market platform for sales, marketing and revenue teams, built to help them find prospects, engage customers and close deals. Go-to-market software of this kind usually sits between a company's CRM and its outbound channels, pulling contact data, prospect research and outreach into one place. The company pairs its AI-native platform with a B2B database of more than 240 million contacts and 30 million accounts, maintained through regular data refreshes and waterfall enrichment.

Apollo organises its product into three layers: data, unifying a customer's own records, Apollo's proprietary data and third-party signals; intelligence, where the GTM Harness trains agents that research accounts and prioritise leads; and execution, through a Workspace for prospecting, outreach and dialling. Apollo Anywhere brings these functions into CRMs, Gmail, ChatGPT, Claude and other tools, and the platform offers more than 200 integrations alongside deliverability features such as domain warming and inbox rotation. Since outbound email and calling are regulated under regimes such as GDPR, CAN-SPAM and do-not-call rules, Apollo builds in consent and opt-out support. It also holds SOC 2 Type II and ISO 27001 certifications and provides governance and admin controls for large, multi-team organisations.

Millions of people and more than 600,000 companies use the platform, which is designed for teams of any size. The company also runs a Solutions Partner Program for RevOps, lead generation and marketing agencies, as well as freelancers and consultants. Partners earn a 20% lifetime commission on referred clients and get partner-only training and certification, and successive Builder, Driver, Accelerator and Leader tiers add perks such as marketing development funds and priority customer support. Partner programmes like this are common in sales software, where many companies outsource outbound campaigns to agencies or consultants.