Apollo.io alternatives for work: 6 tools compared
Updated · By Robert Breen
The best Apollo.io alternatives are Lusha for accurate B2B contact data with a browser extension, Clay for enriching lists from many data providers, Seamless.AI for real-time email and phone lookup, Snov.io and Hunter for finding emails and running simple campaigns, and Kylon for a workspace where AI agents research accounts and draft outreach for your review.
Why look for a Apollo.io alternative
Apollo.io is a B2B contact database with sequencing and AI research for prospecting. Sales teams compare alternatives to check data quality in their market, to combine several data sources, or to separate data from outreach. See what Apollo.io does.
The 6 best Apollo.io alternatives
Lusha Free plan
Best for: B2B contact and company data with a Chrome extension and CRM sync.
B2B contact and company data for prospecting, with a browser extension and CRM sync.
Key features: Email confidence score and last-updated date for each contact; Account ranking from buying signals, most refreshed weekly; Buying committee mapping, lookalikes and website visitor insights.
Clay Free plan
Best for: Enriching lead lists from 150+ data sources with AI research.
Enrich lead lists from 150+ data sources and research accounts with AI agents. Builds highly personalized outreach.
Key features: Access to 150+ data sources from one place; Waterfall enrichment; Claygent AI research agents.
Seamless.AI Free plan
Best for: Real-time email and phone lookup from LinkedIn.
Finds verified emails and phone numbers for prospects in real time. Chrome extension for LinkedIn.
Key features: Real-time search for B2B emails, cell phones and direct dials; Free Chrome extension that works on LinkedIn and other sites; Buyer intent signals.
Snov.io Free plan
Best for: Email finding, verification and email plus LinkedIn campaigns.
Finds leads, enriches them with verified emails and phone numbers and automates cold email and LinkedIn campaigns. Has a free plan that renews monthly with a small credit allowance.
Key features: Email finder with ICP and company profile search; Email verifier with graylisting bypass and API; Email and LinkedIn steps in one campaign sequence.
Hunter Free plan
Best for: Finding and verifying work emails for a company.
Find and verify professional email addresses for a company or person. Includes simple cold-email campaigns.
Key features: Domain Search finds email addresses at a company; Email Finder and Email Verifier; Bulk find and verify tasks.
Kylon Free trial
Best for: AI agents that research accounts and draft outreach for review.
A shared workspace where your team and AI agents work on company tasks together, such as researching accounts and drafting outreach, with people approving the drafts before anything goes out.
Key features: Shared rooms where teams and agents work from the same context; Bring your own agents (Claude Code, Codex, Devin and others) or use Kylon's; Admins control which rooms, accounts and people each agent can reach.
Free lesson: Kylon AI Sales Agent: Find the Reason to Reach Out
How to choose
Pull the same 50 target accounts from two or three tools and compare how many contacts are correct and current. Data quality differs by country and industry, so test on your own market. Check the privacy and opt-out rules for cold outreach where you sell.
Frequently asked questions
- What is a free alternative to Apollo.io?
- Lusha, Clay, Seamless.AI, Snov.io and Hunter all have a free plan with a small number of credits, which is enough to test their data on your own accounts.
- Which Apollo.io alternative has the best contact data?
- It depends on your market. Lusha shows a confidence score and last-updated date for each contact, and Clay combines many data providers in one list, so you can check quality yourself before you buy.
Descriptions were checked against each vendor’s own site on October 20, 2026. No tool paid to be on this list. Spotted something out of date? Email rbreen@ynteractive.com.
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