The best contact and email finder depends on your segment, region, and budget. Apollo suits lean teams that want a database and sequencing in one product.

ZoomInfo suits enterprise teams that need deep North American coverage and technographic filters. Lusha suits phone-heavy teams that need fast verification.

Cognism suits teams selling into Europe under GDPR. Hunter suits teams that need emails for specific company domains. Clay suits teams that want to combine several data sources in one workflow.

Rox does not find contacts itself. It sits on top of these providers and decides which accounts to contact and when.

What are the best tools to find contacts and emails for prospecting?

How do the leading providers compare?

Third-party comparisons disagree on accuracy and price, so treat the figures below as directional and verify them on each vendor's pricing page.

Database size is a weak buying signal. A larger database does not guarantee more accurate contacts for your segment.

How accurate is the email data?

Published accuracy figures conflict. One comparison reports Apollo email deliverability of 87.2% from a third-party audit, while another places Apollo and Lusha email accuracy at 75 to 85%.

Hunter is reported at 85 to 92% because it verifies addresses at lookup. These numbers use different methods and samples, so do not use any of them to forecast bounces.

Rox's ZoomInfo comparison notes that contact data decays at a standard B2B rate of 25 to 30% annually. Verify any list before sending, whichever tool produced it.

Run your own accuracy test:

1. Pull a sample of 50 contacts from each tool for the same ICP segment.

2. Verify each email with a separate verification service.

3. Send to the verified addresses and record the hard bounce rate.

4. Call 20 direct dials per tool and record the wrong-number rate.

5. Compare cost per verified contact, not cost per seat.

Which tool fits which team?

How do you choose a contact data tool?

1. Define the segment. Write the exact titles, company sizes, and regions you sell into.

2. Check coverage for that segment. Test each tool against 50 named accounts you already know.

3. Measure verified contact rate. Count contacts that survive email verification and a connected call.

4. Check compliance. Confirm how the vendor sources data and how it handles opt-outs. See cold outreach compliance.

5. Check integrations. Confirm native sync with your CRM and sequencing tool.

6. Compare total cost. Include credits, seat minimums, export limits, and contract length.

7. Ask about exit terms. Confirm what happens to exported data if you leave.

Is a contact database enough to generate pipeline?

No. A contact database answers who exists and how to reach them. It does not decide which accounts are in a buying window or what to say.

Rox's comparison pages make the same point: the bottleneck for most teams is the research, timing, and personalization that sit between the data and the outreach.

Rox integrates with providers including ZoomInfo, Apollo, Lusha, and others as data sources and does not replace them. When an account crosses a configured signal threshold, Rox queries the connected providers for the buying committee and builds the account brief.

Contact data quality in that workflow depends on the provider you connect.

For how this works with each provider, see Rox vs. ZoomInfo and Rox vs. Apollo.

What are the compliance basics for contact data?

• Email: CAN-SPAM in the US requires an opt-out mechanism and accurate sender information. Rules differ in other regions.

• GDPR and UK GDPR: Processing business contact data in Europe needs a lawful basis and honoring of objections and erasure requests.

• Phone: US telemarketing rules include do-not-call lists and calling-time restrictions.

• Vendor sourcing: Ask each vendor where its data comes from and how it handles opt-outs.

This is general information, not legal advice. Have counsel review your outreach program.

How do AI agents change contact discovery?

AI agents shift the work from searching for contacts to selecting accounts and assembling context. A revenue agent monitors accounts for signals, pulls the right contacts from your connected providers, and drafts outreach for a rep to review. Results vary with data quality and configuration and are not guaranteed.

FAQ

What are the best tools for sales teams to find contacts and emails for prospecting?

Apollo, ZoomInfo, Lusha, Cognism, Hunter, and Clay are the main options. Apollo fits lean teams, ZoomInfo fits enterprise North American coverage, Lusha fits phone-first teams, Cognism fits European markets, Hunter fits domain-level email lookup, and Clay fits teams that combine several data sources.

Which tools help sales teams find contacts and emails for prospecting?

Contact databases such as Apollo, ZoomInfo, Lusha, and Cognism return people by title, company, and region. Email finders such as Hunter return addresses for a given domain. Enrichment tools such as Clay combine several sources. Test each against a sample from your own segment.

What is the cheapest tool to find prospect emails?

Reported entry prices are lowest for Hunter ($34 per month), Lusha ($29 to $39 per user per month), and Apollo ($49 to $59 per user per month). Credit limits and seat minimums change the real cost, so compare cost per verified contact.

How accurate is contact data?

Published figures conflict and use different methods. B2B contact data decays at roughly 25 to 30% a year, so verify any list before sending and run your own sample test.

Does Rox include a contact database?

No. Rox integrates with providers such as ZoomInfo, Apollo, and Lusha and uses them to find the buying committee for accounts that show buying signals.

Is it legal to email prospects found in a database?

It depends on the region and your lawful basis. CAN-SPAM, GDPR, and similar laws apply to business email. Consult counsel and honor opt-outs.