Apollo AI

Find, enrich, and reach 275 million B2B contacts with AI-powered outreach.

Apollo AI Review: All-in-One AI Sales Intelligence Platform for B2B Teams

Finding the right prospects, getting their verified contact details, personalising outreach, and tracking the pipeline used to require four or five separate tools. Apollo AI consolidates all of that into one platform — a database of 275 million contacts and 73 million companies, combined with AI-powered sequencing, email personalisation, and analytics. It is the most widely adopted all-in-one sales intelligence platform for B2B teams and the first tool most sales leaders recommend to anyone building an outbound motion from scratch.

Quick Summary

Apollo AI is an all-in-one B2B sales intelligence and engagement platform with a database of 275 million contacts, AI-powered outreach sequencing, and built-in email sending — making it the most complete prospecting-to-pipeline tool available.

Is it worth using? Yes — the most complete single-platform solution for B2B outbound sales.

Who should use it? SDRs, account executives, sales managers, and founders running outbound prospecting campaigns.

Who should avoid it? Teams doing purely inbound sales with no outbound motion, or those needing hyper-custom data enrichment (Clay is stronger for that).

Verdict Summary

Best for

Sales teams needing a single platform for prospecting, enrichment, and outreach
Founders building an outbound sales motion without a large tech stack
SDRs needing verified contact data at scale with built-in email sequencing

Not for

Teams needing the deepest possible data enrichment from 75+ sources (use Clay)
Purely inbound sales teams with no outbound prospecting motion
Enterprise teams with complex custom CRM workflows

Rating ⭐⭐⭐⭐½ 4.6 / 5

What Is Apollo AI?

Apollo AI is a B2B sales intelligence and engagement platform founded in 2015 and headquartered in San Francisco. It combines a massive proprietary contact database — 275 million verified contacts across 73 million companies — with outreach automation, AI writing assistance, and pipeline management in one integrated platform. Unlike Clay which focuses on enrichment depth, or Instantly which focuses purely on email sending, Apollo provides the entire outbound workflow from finding a prospect to closing the deal within a single tool.

Apollo’s AI layer added in 2024 and expanded through 2025 includes AI-generated email personalisation, conversation intelligence for call recordings, and predictive lead scoring that identifies which prospects in your database are most likely to convert based on behaviour signals.

How Apollo AI Works

Build your prospect list — Use Apollo’s search filters to find contacts by job title, company size, industry, technology used, funding status, location, and 65+ other criteria across 275M contacts.
Verify contact data — Apollo provides verified email addresses and direct dial phone numbers with a waterfall verification system that checks multiple sources for accuracy.
Enrich your CRM — Connect Salesforce or HubSpot and Apollo automatically enriches existing CRM records with missing contact and company data.
Build an outreach sequence — Create multi-step email sequences with AI-generated personalised opening lines for each prospect based on their profile data.
Launch and track — Send sequences directly from Apollo and track opens, clicks, replies, and meeting bookings in the built-in analytics dashboard.
Score and prioritise — Apollo’s AI lead scoring identifies which prospects show buying intent signals and surfaces them for priority follow-up.

Key Features

275 million contact database with verified emails and direct dials
65+ search filters for precise ICP targeting
AI-powered email personalisation and sequence building
Multi-step outreach sequences — email, call, LinkedIn in one flow
Conversation intelligence — AI analysis of recorded sales calls
Predictive lead scoring based on intent signals
Native CRM integration with Salesforce, HubSpot, and Pipedrive
Chrome extension for prospecting directly from LinkedIn

Real-World Use Cases

Outbound prospecting: Build a targeted ICP list, get verified contact details, and launch a personalised email sequence without leaving Apollo.
CRM enrichment: Automatically fill missing fields across existing Salesforce or HubSpot records with Apollo’s contact and company data.
Intent-based outreach: Use Apollo’s intent data to identify prospects actively researching solutions in your category and prioritise them for immediate outreach.
Sales call coaching: Record and analyse sales calls with conversation intelligence to identify what top performers do differently.

Pros and Cons

Pros	Cons
275M contacts — largest B2B database available	Data accuracy varies on less common contacts
All-in-one — prospecting, enrichment, and sending	Less enrichment depth than Clay for complex workflows
Generous free plan with real prospecting capability	UI can feel overwhelming for new users
AI personalisation built into sequences	Phone number data less reliable than email
Intent data identifies active buyers	Advanced features require Professional plan

Pricing & Plans

Free — $0/month

10 email credits per month
Unlimited email sequence sending
Basic search filters
CRM integrations included

Basic — $59/user/month

1,000 email credits per month
All search filters
AI email writing
Advanced analytics

Professional — $99/user/month

2,000 email credits per month
Conversation intelligence
Intent data access
Custom reporting

Organisation — $149/user/month

4,000 email credits per month
All Professional features
Advanced permissions
Dedicated CSM

Best Alternatives & Comparisons

Clay — Deeper enrichment from 75+ sources, better for hyper-personalised outreach at scale
HubSpot — Better full CRM for inbound-led teams, weaker outbound prospecting database
Instantly AI — Better pure email sending volume and deliverability, no prospecting database
AIOutreach.io — Simpler AI outreach automation, smaller contact database

Frequently Asked Questions (FAQ)

What is Apollo AI?

Apollo AI is a B2B sales intelligence and engagement platform with 275 million verified contacts, AI-powered outreach sequencing, and built-in email sending for end-to-end outbound sales.

Is Apollo AI free?

Yes — the free plan includes 10 email credits per month with unlimited sequence sending and CRM integrations. Paid plans start at $59/user/month.

How many contacts does Apollo have?

Apollo’s database contains 275 million contacts across 73 million companies, making it the largest B2B contact database available in a single platform.

How does Apollo AI compare to Clay?

Apollo is an all-in-one platform — prospecting, enrichment, and sending in one tool. Clay focuses on deep enrichment from 75+ sources with more personalisation power but requires a separate sending tool.

Does Apollo AI integrate with Salesforce?

Yes — Apollo integrates natively with Salesforce, HubSpot, Pipedrive, and other major CRMs for two-way data sync and automatic record enrichment.

What is Apollo's Chrome extension?

Apollo’s Chrome extension allows you to find and save contact information for prospects directly from LinkedIn profiles and company websites without leaving the page.

Final Recommendation

Apollo AI is the default starting point for any B2B team building an outbound sales motion. The combination of the largest contact database, built-in AI sequencing, and CRM integration makes it the most complete single tool for prospecting-to-pipeline workflows. The free plan provides enough access to validate whether Apollo’s data coverage matches your target market before committing.

Next steps