Cognism vs mailfloss: Data Enrichment Tool Comparison
Compare Cognism and mailfloss side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Cognism is a premium B2B sales intelligence platform offering phone-verified Diamond Data contacts and GDPR and CCPA compliant data, priced through custom sales quotes. mailfloss is an email verification service that cleans email lists daily, starting at $29 per month for 10,000 credits. The right choice depends on whether the need is contact enrichment or email list cleaning.
Key takeaways
- Cognism uses custom Contact Sales pricing across all four plans: Sales Prospecting Standard, Sales Prospecting Pro, CRM Enrichment, and Data-as-a-Service.
- mailfloss offers a Lite plan at $29/mo with 10,000 credits/month, a Business plan at $59/mo with 25,000 credits/month, and a Pro plan at $209/mo with 125,000 credits/month.
- Cognism integrates with Salesforce, HubSpot, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365, Bullhorn, and Zapier.
- mailfloss integrates with over two dozen email marketing platforms, including Mailchimp, Klaviyo, ActiveCampaign, Braze, and Constant Contact.
- Both tools share HubSpot and Zapier as common integrations.
Reviewed and updated September 4, 2026
Cognism vs mailfloss: Data Enrichment Tool Comparison
If you are comparing B2B lead data and contact enrichment tools, Cognism and mailfloss will likely both appear on your radar. They share some surface-level similarities, but the details reveal important differences in pricing, capability, and target audience.
The Quick Answer
By each vendor's own wording, Cognism lists diamond data phone-verified contacts and gdpr and ccpa compliant data, while mailfloss lists cleans your list daily and removes addresses that decay over time. A capability both offer can appear under different names, so read both feature lists below.
mailfloss publishes an entry price of $29/mo; Cognism uses custom pricing, so the two cannot be compared on list price.
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
Cognism is Premium B2B sales intelligence platform with GDPR-compliant data, phone-verified Diamond Data contacts, and intent signals.
mailfloss is mailfloss is an email verification service that connects to your email marketing platform and cleans the list daily on autopilot, removing bad addresses, fixing typos and blocking bot and spam signups in real time. Subscriptions are sized by credits per month; prepaid credits cover one-time list uploads.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Sales Prospecting Standard
Lite
Cognism Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Sales Prospecting Standard | Contact Sales | 5 seats included; credits allocated per seat |
| Sales Prospecting Pro | Contact Sales | 5 seats included; credits allocated per seat |
| CRM Enrichment | Contact Sales | - |
| Data-as-a-Service | Contact Sales | - |
Source: Cognism Pricing
mailfloss Pricing (as of September 2026)
| Plan | Price | Emails |
|---|---|---|
| Lite | $29/mo | 10,000 credits/month |
| Business | $59/mo | 25,000 credits/month |
| Pro | $209/mo | 125,000 credits/month |
| Prepaid credits | Usage-based | - |
Source: mailfloss Pricing
Pricing Analysis
One or both platforms use custom or contact-based pricing for some tiers. Reach out to their sales teams for exact quotes based on your usage needs.
Features Breakdown
- Diamond Data phone-verified contacts
- GDPR and CCPA compliant data
- Intent data powered by Bombora
- Technographic data
- Job change and funding alerts
- Browser extension for LinkedIn
- and 4 more listed below
- Cleans your list daily
- Removes addresses that decay over time
- Custom keep and remove rules
- Zapier integration
- Real-time API
- Webhooks
- and 4 more listed below
Cognism Key Features
- Diamond Data phone-verified contacts
- GDPR and CCPA compliant data
- Intent data powered by Bombora
- Technographic data
- Job change and funding alerts
- Browser extension for LinkedIn
- CSV enrichment
- On-demand mobile verification
- Target market analysis lists
- Unlimited admin access
mailfloss Key Features
- Cleans your list daily
- Removes addresses that decay over time
- Custom keep and remove rules
- Zapier integration
- Real-time API
- Webhooks
- Automatically fixes typos
- Prevents bounces in real-time
- Auto-tags subscribers after verification
- Single sign-on
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 Cognism
- Diamond Data phone-verified contacts
- GDPR and CCPA compliant data
- Intent data powered by Bombora
- Technographic data
- Job change and funding alerts
- Browser extension for LinkedIn
- CSV enrichment
- On-demand mobile verification
- Target market analysis lists
- Unlimited admin access
Listed only by mailfloss
- Cleans your list daily
- Removes addresses that decay over time
- Custom keep and remove rules
- Zapier integration
- Real-time API
- Webhooks
- Automatically fixes typos
- Prevents bounces in real-time
- Auto-tags subscribers after verification
- Single sign-on
Integration Ecosystem
Cognism Integrations
Cognism connects with: Salesforce, HubSpot, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365, Bullhorn, Zapier.
mailfloss Integrations
mailfloss connects with: Mailchimp, Klaviyo, HubSpot, ActiveCampaign, Kit, beehiiv, GoHighLevel, Braze, AWeber, Drip, MailerLite, Constant Contact, Brevo, Campaign Monitor, GetResponse, Ontraport, iContact, Sendlane, Moosend, Keap, Intercom, Customer.io, Iterable, Ghost, Emma, SendPulse, Benchmark, Mautic, Zapier.
Shared Integrations
Both tools integrate with: HubSpot, Zapier.
Integrations listed only by Cognism: Salesforce, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365, Bullhorn.
Integrations listed only by mailfloss: Mailchimp, Klaviyo, ActiveCampaign, Kit, beehiiv, GoHighLevel, Braze, AWeber, Drip, MailerLite, Constant Contact, Brevo, Campaign Monitor, GetResponse, Ontraport, iContact, Sendlane, Moosend, Keap, Intercom, Customer.io, Iterable, Ghost, Emma, SendPulse, Benchmark, Mautic.
Use Case Recommendations
Best Fit for Cognism
- Enterprise buyers who prefer custom pricing and dedicated support
- Revenue operations teams building targeted prospect lists
- Marketing teams enriching CRM data for segmentation
- Sales teams researching target accounts
Best Fit for mailfloss
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (29 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | Cognism | mailfloss |
|---|---|---|
| Starting Price | Contact Sales | $29/mo |
| Top Tier Price | Contact Sales | Usage-based |
| Total Features Listed | 10 | 10 |
| Integrations | 8 | 29 |
| Founded | 2015 | N/A |
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
Cognism and mailfloss both serve the B2B lead data and contact enrichment market. mailfloss publishes an entry price of $29/mo, while Cognism uses custom pricing for its plans, so compare on features and on the quote you receive. 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 Cognism and mailfloss for current information.
Frequently asked questions.
Frequently asked questions- How much does Cognism cost compared to mailfloss?
- Cognism uses custom pricing across all four plans, Sales Prospecting Standard, Sales Prospecting Pro, CRM Enrichment, and Data-as-a-Service, requiring a sales quote. mailfloss starts at $29/mo for its Lite plan with 10,000 credits/month, rising to $59/mo for Business and $209/mo for Pro with 125,000 credits/month.
- What is the main difference between Cognism and mailfloss?
- Cognism is a B2B sales intelligence platform focused on phone-verified contact data, intent signals, and GDPR and CCPA compliant data for prospecting. mailfloss is an email verification service that cleans email marketing lists daily by removing decayed addresses and fixing typos. They target different core problems even though both touch contact data quality.
- Which integrations does Cognism support?
- Cognism connects with Salesforce, HubSpot, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365, Bullhorn, and Zapier. Of these, HubSpot and Zapier are the only integrations it shares with mailfloss.
- Which integrations does mailfloss support?
- mailfloss connects with a wide range of email marketing platforms, including Mailchimp, Klaviyo, HubSpot, ActiveCampaign, Kit, beehiiv, GoHighLevel, Braze, AWeber, Drip, MailerLite, Constant Contact, Brevo, and Zapier, among others.
- Is Cognism or mailfloss better suited for enterprise buyers?
- Cognism is positioned as the better fit for enterprise buyers who prefer custom pricing and dedicated support. mailfloss, described as an email verification service that cleans lists daily, is oriented more toward teams needing ongoing email list maintenance rather than enterprise sales intelligence.
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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