Apollo

Apollo is a sales intelligence and engagement platform that combines a large B2B contact database with tools for finding, sequencing, and reaching out to prospects. Users search the database by filters like title, industry, company size, or funding stage, then build multi-step email and call sequences without switching to separate tools for data, outreach, and dialing. It also includes a Chrome extension for pulling contact and company data while browsing LinkedIn or other sites.

It's built for sales teams and SDRs who need prospecting and outreach in one workflow rather than stitching together a data provider, a sequencing tool, and a dialer. Its AI features help score and prioritize leads, draft outreach copy, and surface buying signals such as recent hiring or funding events. Apollo also offers a conversation intelligence add-on that records and analyzes sales calls.

What sets it apart from point solutions like ZoomInfo or Outreach is the breadth of the single platform: data, engagement, and some call intelligence under one subscription at a lower price point than many enterprise-focused competitors. This has made it popular with startups and mid-market sales teams that want most of what a full sales stack offers without buying and integrating several separate tools.