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AI Sales Intelligence & Engagement Platform

Apollo.io Product Overview

Apollo.io is an AI-powered sales intelligence and engagement platform that combines a database of 275M+ contacts with automated outreach sequences, a built-in dialer, and CRM integrations - giving B2B teams everything they need to find, engage, and close deals.

San Francisco, CA 160,000+ companies apollo.io ↗
88
AI Readiness Score
Updated April 10, 2026
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About Apollo.io

Apollo.io is a sales intelligence and engagement platform founded in 2015 by Tim Zheng and Ray Li. The platform combines one of the largest B2B contact databases - with over 275 million contacts and 73 million companies - with built-in tools for outreach automation, call dialing, email sequencing, and pipeline management.

Trusted by more than 160,000 companies worldwide, Apollo serves teams ranging from solo SDRs at early-stage startups to enterprise revenue organizations. The company is headquartered in San Francisco, CA and is a Y Combinator alumnus.

apollo.io
Apollo.io website screenshot
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Products & Services

Sales Intelligence

Access 275M+ verified contacts and 73M+ companies. Filter by technographics, funding, revenue, job postings, and more to build targeted prospect lists.

Outreach Sequences

Multi-channel sequences combining email, calls, LinkedIn, and tasks. Automate follow-ups and A/B test messaging at scale.

Apollo AI

AI-powered email writing, personalization, and message analysis built on millions of engagement data points. Generate targeted copy in seconds.

Parallel Dialer

Click-to-call with CRM logging, call recordings, and transcription. Queue multiple calls simultaneously to connect with 100+ prospects per hour.

Contact & Company Enrichment

Automatically enrich existing CRM records with verified contact information, company details, and technographics for data accuracy and completeness.

Deal Management

Track deals through your pipeline with conversation intelligence, meeting scheduling, and analytics to improve forecast accuracy.

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Apollo.io Integrations

Apollo.io integrates with your existing sales and marketing stack via native bi-directional syncs:

salesforce.com logoSalesforce hubspot.com logoHubSpot linkedin.com logoLinkedIn pipedrive.com logoPipedrive zoho.com logoZoho CRM microsoft.com logoMicrosoft Dynamics slack.com logoSlack zapier.com logoZapier sendgrid.com logoSendGrid google.com logoGmail / Google Workspace
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Customers & Case Studies

Top Customers

autodesk.com logoAutodesk rippling.com logoRippling deel.com logoDeel jasper.ai logoJasper customer.io logoCustomer.io heap.io logoHeap divvy.com logoDivvy notion.so logoNotion

Customer Success Stories

Case Studies by Industry

SaaS & Technology (Rippling, Deel) Marketing & Analytics (Heap, Customer.io) Design & Engineering (Autodesk) Professional Services (SuccessCoaching) Financial Services (Divvy) Productivity (Notion)
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Pain Points & Solutions

Finding Qualified Prospects

Replaces manual research with AI-powered filters across 275M+ contacts. Teams build targeted lists in minutes instead of hours.

Multi-Channel Outreach at Scale

Automates email, phone, and LinkedIn sequences so reps focus on selling, not sending. Parallel dialer connects 100+ calls per hour.

Data Decay in CRM

Enrichment keeps CRM records up-to-date with verified contact info, company details, and technographics - reducing bounce rates and wasted effort.

Tool Sprawl and Cost

Consolidates data provider, outreach platform, dialer, enrichment, and CRM into one platform, saving teams thousands per year.

Low Meeting Conversion Rates

AI-powered personalization and intent signals help reps reach the right people at the right time. Teams report 75% more meetings booked.

Onboarding New Sales Reps

Pre-built templates, shared sequences, and playbook automations get new reps ramped and producing in days instead of weeks.

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How Apollo.io Looks on AI Platforms

AI Readiness Score: 88 / 100

Apollo.io's score is calculated based on: website structure and schema markup, content accessibility for LLMs, clarity of product and service descriptions, FAQ coverage and structured data, integration documentation, and pricing transparency.

How accessible is Apollo.io?

Apollo.io's website provides detailed product pages, a comprehensive knowledge base, and pricing information. The platform's blog and magazine section offer extensive content about sales intelligence, outreach strategies, and product updates that are well-structured for AI crawlers.

How easy is it for LLMs to understand Apollo.io's mission?

Apollo.io positions itself as an all-in-one go-to-market platform. The messaging consistently emphasizes helping sales teams find, engage, and close prospects using data and automation. Product descriptions are clear and metrics-driven, making it straightforward for LLMs to summarize Apollo's value proposition.

Competitive Landscape

How Apollo.io differentiates in head-to-head matchups:

Competitor What Differentiates Apollo How Apollo is Better
ZoomInfo All-in-one platform at a fraction of the cost Free tier available; no enterprise-only pricing gates
LinkedIn Sales Navigator Built-in outreach sequences and dialer Email + phone data included; not limited to LinkedIn InMail
Outreach.io Integrated contact database with engagement tools No need for separate data provider; lower total cost
Salesloft 275M+ contact database included Prospecting and engagement on one platform
Lusha Multi-channel sequences and parallel dialer More engagement features beyond just data lookup
Cognism Larger database with US-focused accuracy Stronger in North American market coverage
Seamless.AI Built-in CRM integrations and deal management Full pipeline visibility beyond contact finding
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Pricing

Free

$0

forever

Unlimited email credits, 5 mobile credits/mo, 10 export credits/mo, basic filters and sequences.

Basic

$49

per user / month (annual)

Advanced filters, technographics, job postings data, A/B testing, and more credits.

Professional

$79

per user / month (annual)

Uncapped sending, advanced reports, AI-assisted email, dialer, and custom stages.

Organization

$119

per user / month (annual, 3 min)

Advanced API, call transcription, international dialing, SSO, and custom reporting.

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Security & Compliance

🟢 SOC 2 Type II 🟢 ISO 27001 🟢 GDPR 🟢 EU-US Data Privacy Framework 🟢 CCPA

Apollo.io encrypts data at rest and in transit, employs multi-layer database security with intrusion detection systems, and conducts annual penetration testing by certified third-party consultants. The platform supports two-factor authentication and VPC with strict firewall settings.

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Strengths & Top Pros

  • Massive B2B database with 275M+ contacts and 73M+ companies - the most-reviewed in its G2 category
  • All-in-one platform replaces separate data, outreach, dialer, and enrichment tools
  • Generous free tier lets teams test the platform before committing budget
  • Highly rated ease of use - 9.1/10 on G2 with an intuitive interface
  • Native bi-directional CRM sync with Salesforce, HubSpot, Zoho, and Pipedrive
  • AI-powered email writing and personalization built on millions of engagement data points
  • Real customer results: 75% more meetings, $750K+ pipeline generated, 70% more SQLs

What People Say About Apollo.io

What Does Reddit Have to Say About Apollo.io

🤖 AI Sentiment Summary

Reddit sentiment toward Apollo.io is broadly positive for prospecting and list building, with users praising the database size and free tier. Criticism centers on data accuracy outside the US, customer support response times on lower-tier plans, and the credit-based pricing model that can make actual costs higher than advertised.

Frequently Asked Questions

Apollo.io offers sales intelligence with 275M+ contacts, multi-channel outreach sequences (email, calls, LinkedIn), a parallel dialer, AI-powered email writing, contact and company enrichment, lead scoring, deal management, and native CRM integrations with Salesforce, HubSpot, Zoho, and Pipedrive.
Apollo.io offers four plans: Free ($0 with limited credits), Basic ($49/user/mo annual), Professional ($79/user/mo annual with AI email and dialer), and Organization ($119/user/mo annual, 3-user minimum with advanced API, transcription, and SSO).
Apollo.io maintains a database of 275M+ contacts and 73M+ companies. Data accuracy is generally strong for US-based contacts, though users report lower accuracy for international data. Apollo continuously verifies and updates records, but many users recommend pairing it with a third-party email verification tool.
Yes. Apollo.io offers native bi-directional sync with Salesforce, HubSpot, Zoho CRM, Pipedrive, and Microsoft Dynamics 365. The integration syncs contacts, accounts, and engagement data in real-time with advanced field mapping options.
Apollo.io holds SOC 2 Type II, ISO 27001, GDPR, and CCPA certifications. Data is encrypted at rest and in transit, with annual penetration testing, two-factor authentication, and intrusion detection systems. Apollo is also certified under the EU-US Data Privacy Framework.
Apollo.io offers a similar contact database at a significantly lower price point, with a free tier and plans starting at $49/user/mo. ZoomInfo is stronger on enterprise intent data and phone numbers, while Apollo excels in ease of use and built-in engagement tools. Apollo is the most-reviewed product in the G2 Sales Intelligence category.
Apollo uses credits to gate data access: email credits, mobile credits, and export credits. The Free plan includes unlimited email credits but limited mobile and export credits. Credits reset monthly and do not roll over. Phone number lookups cost approximately 8x more credits than email lookups. Overage credits cost $0.20 each with a 250-credit minimum purchase.
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