About Apollo.io

Apollo.io is an AI-powered go-to-market platform unifying B2B contact data, intent signals, multi-channel sequencing, and a built-in dialer in one connected workspace, covering the full motion from identifying a prospect to booking a meeting. Its Living Data Network continuously validates and refreshes over 240 million contacts and 30 million companies, delivering roughly 90-98% email accuracy depending on the source. Apollo won the 2026 MarTech Breakthrough Award for "Best AI-Powered Sales Solution" and, per Ramp's vendor adoption data, is the fastest-growing vendor in the Sales Data Providers category as of July 2026, holding 38% category adoption. Pricing is transparent and self-serve starting at $49/user/month with a genuine free tier, a sharp contrast to competitors like 6sense or ZoomInfo that require custom enterprise quotes.

Key features

240M+ verified contacts

Living Data Network continuously validates and refreshes contact records

Built-in Power Dialer

Parallel dialer with AI-generated call summaries included natively

Multi-channel sequences

Coordinated outreach across email, phone, and other channels

Waterfall enrichment

Chains multiple data sources for higher-accuracy contact information

Pros and cons

✓ Pros

Transparent, self-serve pricing starting at $49/month, unlike most enterprise competitors

Fastest-growing vendor in its category per independent adoption data

Genuinely unified platform: data, sequencing, and dialer in one workspace

2026 MarTech Breakthrough Award winner for AI-powered sales

✗ Cons

Intent data is less sophisticated than dedicated ABM platforms like 6sense

Direct-dial phone coverage is thinner than premium enterprise data providers

API access requires the pricier Custom plan, a barrier for technical teams

Monthly billing runs roughly 20% higher than annual across all tiers

Best for

Startups and SMBs wanting an affordable, unified GTM platformSales teams wanting data, sequencing, and dialing in one toolGTM engineers building workflows via API, CLI, and MCPTeams prioritizing transparent, self-serve pricing over custom enterprise quotes

Why this score

End-to-end outbound AI with 270M+ contacts acquired Pocus in March 2026

G2 4.8/5 (9800). 270M+ contacts. Acquired Pocus Mar 2026.