Last verified May 2026
Apollo
Sales engagement platform · all in one engagement
All-in-one go-to-market platform combining a B2B database of 275M+ contacts, multi-step sequences, dialer, and CRM sync for outbound sales teams.
Company
- Founded
- 2015
- Headquarters
- San Francisco, CA
- Funding
- Series D, $110M led by Bain Capital Ventures (2023)
Pricing
| Tier | Monthly | Per seat | Includes |
|---|---|---|---|
| Free | $0 | — | Unlimited email sending · 60 mobile credits/mo · 120 export credits/mo |
| Basic | — | $59 | 1,000 email credits/mo · Sequences · AI writing assist |
| Professional | — | $99 | Unlimited sequences · Dialer with local presence · Buying intent topics |
| Organization | — | $149 | Min 5 seats · Advanced security · Customer success manager |
Key features
- B2B contact database with 275M+ contacts
- Multi-step email and LinkedIn sequences
- Built-in dialer with local presence
- Buying intent and job-change alerts
- CRM sync (Salesforce, HubSpot)
Pros
- Generous free tier — unlimited email plus thousands of search credits
- Affordable compared to ZoomInfo at similar contact volume
- Database and outreach in one tool reduces stack complexity
Cons
- Free credits run out fast for active prospectors
- Data freshness varies versus enterprise-grade providers
- Email deliverability requires careful warmup discipline
Integrations
Alternatives
See full breakdown on the alternatives to Apollo page.
ZoomInfo
b2b-databaseEnterprise B2B sales intelligence platform with a database of 100M+ contacts, intent data, and engagement workflows.
Clay
data-enrichmentProgrammable spreadsheet that pulls from 100+ data sources to build, enrich, and segment B2B prospect lists using AI agents.
Salesloft
enterprise-sequencesSales engagement and revenue orchestration platform combining cadences, conversation intelligence, and forecasting for B2B teams.
Outreach
enterprise-sequencesEnterprise sales engagement platform managing outbound sequences, deal intelligence, and forecasting for large revenue teams.
Reply.io
multichannel-sequencesAI-powered sales engagement platform for multi-channel sequences across email, LinkedIn, calls, and SMS with built-in analytics.