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Apollo.io

Challenger#7 in Sales & Revenue

B2B sales intelligence platform with 270M+ contacts; prospecting database plus automated email/LinkedIn sequences at competitive pricing competing with ZoomInfo for SMB and mid-market sales.

Best for: Sales Intelligence
56
AI Score
Grade C↑ Trending
AI Visibility Score (Beta)
Sales & RevenueSales IntelligenceWebsiteUpdated March 2026

Brand Intelligence Graph

Competes with
Integrates with
Capabilities
Sales Intelligence

Company Overview

About Apollo.io

Apollo.io is an all-in-one sales intelligence and engagement platform providing B2B contact data, company information, and automated outreach sequences — enabling sales and marketing teams to find prospects, enrich leads with contact details, and execute multi-channel outreach campaigns from a single platform. Founded in 2015 by Tim Zheng and Ray Li in San Francisco, Apollo.io has raised over $250 million and serves over 160,000 companies — from individual SDRs to enterprise sales teams — who need accurate contact data and prospecting workflow tools at competitive pricing.

Business Model & Competitive Advantage

Apollo's database contains over 270 million B2B contacts with work emails, phone numbers, LinkedIn profiles, and technographic data about the companies they work at. The prospecting engine enables filtering by job title, company size, industry, technology stack, growth signals, and funding status to build highly targeted prospect lists. Apollo Sequences automates multi-step outreach (email, LinkedIn, phone) with AI-personalized messaging, tracking opens, clicks, and reply rates to optimize conversion.

Competitive Landscape 2025–2026

In 2025, Apollo.io is one of the fastest-growing sales tech companies, competing with ZoomInfo (the enterprise incumbent), Outreach, Salesloft, and Clay for sales prospecting and engagement platform share. Apollo's competitive advantage is its aggressive pricing (significantly cheaper than ZoomInfo for similar contact data) and its all-in-one design that bundles data and engagement — where ZoomInfo data must be purchased separately from engagement tools. The 2025 strategy focuses on improving data accuracy and freshness (a key differentiator from competitors), launching Apollo AI for automated outreach personalization, and growing its enterprise customer segment with SSO, advanced admin controls, and CRM sync capabilities.

Founded
2015
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Key Differentiators

Strong Challenger

Apollo.io is an established challenger with significant market presence and competitive offerings in Sales & Revenue Operations.

Top 10 Ranked

Ranked #7 in the Sales & Revenue Operations category, among the industry's best.

Frequently Asked Questions

Estimated Visibility Trend (Beta)

Simulated 8-week rolling score

56
↑ Trending

Based on estimated brand signals. Historical tracking coming soon.

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