Apollo
The AI sales platform for smarter, faster revenue growth
What is Apollo?
Apollo is a sales and data enrichment platform used by over 600,000 companies for verified contact outreach. Recruiting and staffing teams access 230M+ contacts and 30M+ company records with refreshed emails and phone numbers. Teams use Apollo to run outbound sequences, enrich inbound leads, and consolidate prospecting, enrichment, and deal tracking in one workflow. Apollo consolidates functions that otherwise live in separate sourcing, sequencing, and enrichment tools on most GTM recruiting stacks.
What are Apollo's key features?
230M+ contact database with verified emails and direct-dial phone numbers, updated continuously for freshness
AI-powered multichannel outbound sequences with built-in email deliverability guardrails
Real-time inbound lead enrichment and automated routing with built-in calendar scheduling
CRM data cleansing and enrichment to maintain accurate records across integrated stacks
AI-powered call summaries, pre-meeting research, and pipeline deal boards for deal execution
How do staffing agencies use Apollo?
- A staffing firm's BD team uses Apollo to identify hiring managers at target accounts, enrich those contacts with verified direct dials, and enroll them in automated email sequences, cutting prospecting time by 75%.
- A recruiting agency uses Apollo's data enrichment to cleanse and update stale CRM records before a new outbound campaign, improving targeting accuracy and reducing bounce rates.
- An SDR team uses Apollo's inbound routing to automatically qualify and schedule discovery calls with companies that submit contact forms, ensuring no warm lead goes uncontacted.
Who is Apollo best for?
- Best for High-Volume Outbound Sourcing
- Best for Staffing Business Development Teams
- Best for CRM Data Enrichment at Scale
- Best for Small to Mid-Size Recruiting Agencies
What are Apollo's pros and cons?
Pros
- Apollo's database of 230M+ contacts with continuously refreshed verification reduces bounced emails and invalid phone numbers, directly improving outreach connect rates.
- Customers report a 4x increase in SDR efficiency and 64% lower tech stack costs by consolidating prospecting, sequencing, enrichment, and deal tracking into one platform.
Cons
- Apollo's contact data coverage is strongest in North America and Western Europe, meaning staffing firms operating in APAC or emerging markets may find lower data density and accuracy.
- The platform's breadth of features - outbound, inbound, enrichment, and deal execution - creates a steep onboarding curve for smaller teams without a dedicated RevOps or sales ops resource.
What are people saying about Apollo?
Users rate Apollo.io highly for its 230M+ contact database and the all-in-one GTM workflow combining prospecting, sequencing, enrichment, and deal tracking. Recruiters running outbound cite it as a tool-stack consolidator. Friction points: data accuracy softens outside North America and Western Europe, and the feature breadth creates a steep onboarding curve for teams without RevOps support.
Source: G2 (9238 reviews) · Updated April 22, 2026
How does Apollo compare to alternatives?
| Feature | Apollo | Clay |
|---|---|---|
| Category | Talent Data APIs | Data Enrichment |
| Pricing | Free | Free |
| AI-first | ||
| API | ||
| MCP | ||
| GDPR | ||
| Best for | Best for High-Volume Outbound Sourcing | Best for High-Volume Candidate Sourcing |
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Implementation support
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We've set up Apollo inside recruiting teams across 110+ engagements. Book a call to map it against your stack, data, and workflows.
Frequently asked questions about Apollo
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