Apollo.io is an all-in-one AI sales platform combining a 240M+ contact B2B database with prospecting, multichannel outreach, inbound routing, deal execution, and an AI assistant, positioned to replace a fragmented sales tech stack. Founded in 2015 by Tim Zheng, it reached unicorn status with a $1.6B valuation after a 2023 Series D, and now serves 600,000+ companies including Ernst & Young, Oracle, and Lyft, with plans starting at $49/month per user and a generous free tier.

The AI sales platform for smarter, faster revenue growth

Key features

Apollo Data: 240M+ verified contacts and 30M+ companies with advanced filtering
Outbound automation: AI-powered, multichannel campaigns with deliverability guardrails
Inbound lead conversion: anonymous visitor ID, real-time form enrichment, instant routing
Deal Execution: pre-meeting insights, AI call summaries, follow-ups, pipeline boards
AI Assistant: AI-driven GTM guidance across prospecting, outreach, and deal workflows
Apollo MCP: gives reps access to Apollo's data directly inside their own AI tools
Workflow Automation: automations to identify and scale successful outbound/inbound plays

Strengths

Massive scale: 600,000+ companies, 4.7/5 rating across 9,015+ reviews, #1 ranked on G2
Consolidates 5+ typical sales-stack tools into one platform at a fraction of the combined cost
Well-funded and proven at unicorn scale: $250M+ raised, $1.6B valuation
Enterprise-grade compliance stack: GDPR, SOC 2, CCPA, CPRA, ISO/IEC 27001, CASA Tier 2, EU-US DPF, PCI DSS
Serves both SMBs (generous free tier) and Fortune 500 enterprises on the same core platform
Deep integrations with major CRMs and sales tools: Salesforce, HubSpot, Outreach, SalesLoft, Marketo

Best for

Sales development reps (SDRs) and account executives needing verified contact data and automated outreach
Sales leaders and RevOps teams wanting a consolidated tech stack replacing multiple point tools
Marketers running inbound lead qualification, routing, and nurture sequences
Founders and small teams needing an affordable, all-in-one prospecting and CRM enrichment tool
Enterprise sales organizations (Fortune 500) needing SSO, advanced security, and API access via Custom plans

Integrations

SalesForce (native, deep, system)
HubSpot (native, deep, system)
SalesLoft (native, deep, system)
Outreach (native, deep, system)
Marketo (native, deep, system)

Pricing

USD 49 / month - 14-day free trial

Apollo.io

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