Apollo.io
Find and contact prospects from a large B2B contact database with built-in outreach and engagement tools. Sales teams work from one platform instead of stitching data and sequencing together.
The verdict on Apollo.io: Sales teams building prospect lists and outreach sequences from verified contact data Apollo.io is the default tool to reach for once you've accepted that your outreach needs real contact data behind it, not just a sequencer. Pricing: Free / $49/user/mo Basic / $79/user/mo Professional. Last reviewed: August 2026.
Best For
Sales teams building prospect lists and outreach sequences from verified contact data
Standout Feature
A database of 275+ million contacts with enriched emails, phone numbers, and technographic data built in
TL;DR
The default sales prospecting tool once you need real contact data behind your outreach, not just a sequencer.
Alternatives
Overview
Apollo.io is a sales intelligence and engagement platform providing access to a database of 275+ million contacts and 60+ million companies with enriched data, email addresses, phone numbers, LinkedIn profiles, job titles, technologies used, and funding history, used by sales teams for prospect identification, list building, and outreach sequencing. The prospecting engine filters the database by virtually any combination of criteria: company size, industry, technology stack, growth signals, funding stage, geography, and job function. Apollo's email sequencing tool automates multi-step outreach to the resulting prospect lists, tracking opens, clicks, and replies and triggering follow-up steps based on engagement. The AI personalization layer generates customized first lines for each prospect based on their LinkedIn activity and company news.
Apollo's data enrichment API populates CRM records with current contact information for leads already in your pipeline. The Chrome extension surfaces Apollo data on any LinkedIn profile, showing verified emails and company information without leaving the platform. Free plans provide limited monthly credits for email lookups and exports. Paid plans start at $49/month per user for the Basic tier.
Apollo is most valuable to outbound-heavy B2B sales teams where contact data quality and enrichment speed are direct levers on prospecting efficiency.
Our Take
The 275-plus million contact database with enriched emails, phone numbers, and technographic data lets sales teams build prospect lists and run sequences from the same platform rather than stitching a data provider to a separate tool. Data accuracy varies by industry, which is the real caveat to test before committing. The free tier gives enough access to verify whether contact quality in your target market holds up. Once it does, moving to a paid plan is the straightforward next step.
Trust & Data
Verified 2026-08
- Training on your data
- YesApollo's own AI policy states it develops proprietary machine learning models and may use customer data as input to train those internal models for more accurate recommendations, run only on Apollo's own infrastructure. Data sent to third-party AI providers for specific features is not used for training without first disclosing it to customers and obtaining consent, and is deleted from those platforms within 30 days; data flowing through a customer's own AI integrations is not used for Apollo's training at all.
- Compliance
- ISO 27001, SOC 2 Type 2, GDPR
- Retention
- Apollo states it retains personal information for a period consistent with the purpose it was collected for, unless a deletion request is submitted, with specific durations governed by contract; data sent to third-party AI providers is deleted from those platforms within 30 days.
- Export
- Not published
Sources: apollo.io/privacy policy, apollo.io/ai policy, apollo.io/security, trust.apollo.io
As published by the vendor. Verify independently before purchase decisions.
Key Features
- 275M+ contact database
- AI email sequences
- Conversation intelligence
- Lead scoring
- CRM integration
- • Massive verified contact database
- • sequence personalization
- • Strong LinkedIn extension
- • Good free tier for prospecting
- • Data accuracy varies by industry
- • Can get expensive for full features
- • UI can be overwhelming
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Workflows Using This Tool
Step-by-step playbooks that put Apollo.io to work.
From the Blog
Coverage and comparisons that mention Apollo.io.