Apollo.io

Apollo.io is a sales engagement product. Building the industry's first fully agentic GTM platform, transforming how revenue teams execute. In practice that means sequencing calls, emails and tasks so reps work a list instead of guessing.

It makes the most sense for outbound sales teams. They also list Artificial Intelligence (AI), Lead Generation, Sales and Sales Automation, so expect those to show up in the feature set. They are a large team, 501 to 1,000 people, which usually shapes who they work with. At that size expect formal onboarding, documentation and a longer sales cycle.

Apollo.io is based in San Francisco, California and founded in 2015. You can read more at apollo.io.

Our checklist for this category: deliverability tooling, dialer quality, and seat minimums. Ask for a trial on your own data, not a canned demo.

If you have worked with Apollo.io, tell the next buyer what you paid and what surprised you. That is the part of this page we cannot write.