Clearbit vs MailerCheck: Data Enrichment Tool Comparison
Compare Clearbit and MailerCheck side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Clearbit and MailerCheck serve different core purposes: Clearbit is a B2B data enrichment platform starting at $45 per month with lead, contact, and account enrichment, while MailerCheck is an email list verification and deliverability tool offering free credits and pay-as-you-go pricing at $0.01 per credit. The right choice depends on budget, team size, and required capabilities.
Key takeaways
- Clearbit's entry plan costs $45/mo and includes 100 credits per month, while its Business plan costs $1667/mo.
- MailerCheck offers 10 free credits for email list verification and a pay-as-you-go plan starting at $0.01 per credit for 1,000 credits.
- Clearbit lists 4 integrations (HubSpot, Segment, Marketo, Salesforce) while MailerCheck lists 7 integrations (MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, Make).
- Both Clearbit and MailerCheck list 8 features on their respective pages, though the two tools serve different core purposes.
- Clearbit offers 3 pricing tiers compared to MailerCheck's 2 tiers.
Reviewed and updated September 4, 2026
Clearbit vs MailerCheck: Data Enrichment Tool Comparison
Clearbit and MailerCheck are both data enrichment tools. Choosing between them depends on your team size, budget, and specific B2B lead data and contact enrichment requirements. Here is what each vendor publishes about pricing, features, and integrations.
The Quick Answer
By each vendor's own wording, Clearbit lists global data coverage and lead, contact, and account enrichment, while MailerCheck lists email list verification and email insights. A capability both offer can appear under different names, so read both feature lists below.
MailerCheck offers a lower entry point at $0/mo compared to Clearbit at $45/mo.
If your priority is finding accurate contact data for target accounts, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.
Understanding the Core Difference
Clearbit is B2B data enrichment platform (now Breeze Intelligence by HubSpot) with real-time enrichment and visitor identification.
MailerCheck is Email list verification and deliverability testing tool that validates single addresses, bulk lists or new signups through an API, and tests email content and inbox placement before a send.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Entry
Free credits
Clearbit Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Entry | $45/mo | 100 credits/month | N/A |
| Business | $1667/mo | Custom | N/A |
| Enterprise | Contact Sales | Custom | N/A |
Source: Clearbit Pricing
MailerCheck Pricing (as of September 2026)
| Plan | Price | Emails |
|---|---|---|
| Free credits | Free | 10 free credits on a new account, for Email List Verification only |
| Pay as you go | Usage-based | 1,000 credits at the entry step, at $0.01 per credit; 1 credit = 1 email verification |
Source: MailerCheck Pricing
Pricing Analysis
MailerCheck offers the lower entry point ($0/mo vs $45/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Clearbit offers 3 pricing tiers compared to MailerCheck's 2, giving you more granularity as you scale.
MailerCheck includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Global data coverage
- Lead, contact, and account enrichment
- Real-time lead scoring and routing
- IP intelligence for visitor identification
- Dynamic form shortening
- Corporate hierarchy mapping
- and 2 more listed below
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- and 2 more listed below
Clearbit Key Features
- Global data coverage
- Lead, contact, and account enrichment
- Real-time lead scoring and routing
- IP intelligence for visitor identification
- Dynamic form shortening
- Corporate hierarchy mapping
- Industry categorization
- Buyer intent signals
MailerCheck Key Features
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- Credits and autopay
- Statuses
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by Clearbit
- Global data coverage
- Lead, contact, and account enrichment
- Real-time lead scoring and routing
- IP intelligence for visitor identification
- Dynamic form shortening
- Corporate hierarchy mapping
- Industry categorization
- Buyer intent signals
Listed only by MailerCheck
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- Credits and autopay
- Statuses
Integration Ecosystem
Clearbit Integrations
Clearbit connects with: HubSpot, Segment, Marketo, Salesforce.
MailerCheck Integrations
MailerCheck connects with: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, Make.
Integrations listed only by Clearbit: HubSpot, Segment, Marketo, Salesforce.
Integrations listed only by MailerCheck: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, Make.
Use Case Recommendations
Best Fit for Clearbit
- Budget-conscious teams looking for an affordable data enrichment tool
- Enterprise buyers who prefer custom pricing and dedicated support
- Revenue operations teams building targeted prospect lists
- Marketing teams enriching CRM data for segmentation
Best Fit for MailerCheck
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (7 integrations)
- Teams that want to start free and scale up as needs grow
Feature Comparison Summary
| Feature | Clearbit | MailerCheck |
|---|---|---|
| Starting Price | $45/mo | Free |
| Top Tier Price | Contact Sales | Usage-based |
| Total Features Listed | 8 | 8 |
| Integrations | 4 | 7 |
Getting Started Checklist
- Define your B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected data credits or contact lookups to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
Clearbit and MailerCheck both serve the B2B lead data and contact enrichment market. MailerCheck offers a more accessible entry point, while Clearbit starts at $45/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit Clearbit and MailerCheck for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Clearbit and MailerCheck?
- Clearbit is a B2B data enrichment platform (now Breeze Intelligence by HubSpot) that provides real-time lead, contact, and account enrichment along with visitor identification. MailerCheck is an email list verification and deliverability testing tool that validates single addresses and bulk lists and tests inbox placement before sending. They target different core tasks despite both being labeled data enrichment tools.
- How much does Clearbit cost compared to MailerCheck?
- Clearbit's entry plan starts at $45 per month with 100 credits per month, and its Business plan costs $1667 per month, with Enterprise pricing available by contacting sales. MailerCheck starts free with 10 credits for email list verification, then moves to a pay-as-you-go plan at $0.01 per credit for 1,000 credits.
- Which integrations does each tool support?
- Clearbit connects with HubSpot, Segment, Marketo, and Salesforce, totaling 4 listed integrations. MailerCheck connects with MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, and Make, totaling 7 listed integrations, making it a better fit for teams with complex tech stacks needing broad integration support.
- Which tool is better for budget-conscious teams?
- MailerCheck is the better fit for budget-conscious teams because it offers a free tier with 10 credits and a pay-as-you-go pricing model, letting teams start free and scale up as needs grow. Clearbit's entry plan starts at $45 per month, which is a higher upfront cost than MailerCheck's free entry point.
- Who is Clearbit best suited for?
- Clearbit is best suited for enterprise buyers who prefer custom pricing and dedicated support, revenue operations teams building targeted prospect lists, and marketing teams enriching CRM data for segmentation. It offers 3 pricing tiers, giving more granularity as a team scales compared to MailerCheck's 2 tiers.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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