10 Top B2B Data Resellers (2025)

Who are the Top B2B Data Resellers in 2025? Sources like G2, Trustradius and Gartner consider the 10 Top B2B Data Resellers to Include:

1. Lead411
2. Demandbase
3. Lusha
4. RocketReach
5. Mixrank
6. Coresignal
7. LakeB2B
8. Exact Data
9. Apollo.io
10. Datarade
FAQs

Talk to a B2B Data Reseller Expert (Ask about Unlimited Data)

Top 10 B2B Data Resellers

Looking to add high-quality B2B data to your offerings? Need an easy-to-access API to white-label reliable business data for your customers? Discover the top 10 B2B data resellers that deliver comprehensive, verified datasets—including company details, employee contacts, verified emails, and direct-dial phone numbers. Compare their features like data accuracy, update frequency, and API accessibility using the comparison list below to find the best solution for your business.

1. Lead411

Headquarters: Boulder, Colorado

Unlimited Data at an Affordable Price

REST API access to white-label data to your customers
# of Contacts in Database: 450M
Mobile Direct Dials included: Yes
Re-Verification Schedule: At Least Every 90 Days
# of Technologies Tracked: 30K
# 0f CRM Integrations – 28
Sales Engagement Tools Built-in: Yes
Training Included: Yes
Unlimited Data offered: Yes

2. Demandbase

Headquarters: San Francisco, CA

Uses REST API
# of Contacts in Database: 156M
Mobile Direct Dials included: Yes
Re-Verification Schedule: Every 6 Months
Intent Data: Yes
# of Technologies Tracked: 34K
# 0f CRM Integrations – 3
Sales Engagement Tools Built-in: Yes
Training Included: No
Unlimited Data offered: No

3. Lusha

Headquarters: Boston, MA

Data Enrichment Only API
# of Contacts in Database: 45M
Mobile Direct Dials included: A Very Minimal Amount
Re-Verification Schedule: Not Advertised
Intent Data: Yes – Bidstream Data
# of Technologies Tracked: Not Advertised
# 0f CRM Integrations – 6
Sales Engagement Tools Built-in: No
Training Included: No
Unlimited Data offered: No

4. RocketReach

Headquarters: Boston, MA

Uses Rest API for Data Enrichment
# of Contacts in Database: 700M
Mobile Direct Dials included: A Very Minimal Amount
Re-Verification Schedule: Not Advertised
Intent Data: No
# of Technologies Tracked: Not Advertised
# 0f CRM Integrations – 0
Sales Engagement Tools Built-in: No
Training Included: No
Unlimited Data offered: No

5. MixRank

Headquarters: San Francisco, CA

SDK for mobile apps
Provides Data Sets about People, Companies and Mobile Apps
# of Contacts in Database: 500M
Mobile Direct Dials included: No
Re-Verification Schedule: At Least Every 5 Months
Intent Data: No
# of Technologies Tracked: 4K
# 0f CRM Integrations – 0
Sales Engagement Tools Built-in: No
Training Included: No
Unlimited Data offered: No

6. CoreSignal

Headquarters: New York, NY

Uses API for Data Enrichment and Search for Company, Employee and Jobs Data
# of Contacts in Database: 780M
Mobile Direct Dials included: Public Data Only
Re-Verification Schedule: When Public Data is Updated
Intent Data: No
# of Technologies Tracked: Not Advertised
# 0f CRM Integrations – 0, only with API
Sales Engagement Tools Built-in: No
Training Included: No
Unlimited Data offered: No, up to 10K data records per batch

7. LakeB2B

Headquarters: Dover, DE

Uses API for Data Enrichment
# of Contacts in Database: 450M
Mobile Direct Dials included: Yes
Re-Verification Schedule: 45 Days
Intent Data: No, only list specific data
# of Technologies Tracked: Not Advertised
# 0f CRM Integrations – 4
Sales Engagement Tools Built-in: Yes via LeadConnect and SalesBuddy
Training Included: No
Unlimited Data offered: No, Limited to Lists

8. ExactData

Headquarters: Chicago, IL

Uses REST API and SDKs for integration
# of Contacts in Database: 300M
Mobile Direct Dials included: Yes
Re-Verification Schedule: Not Advertised
Intent Data: No, only list specific data
# of Technologies Tracked: Not Advertised
# 0f CRM Integrations – 0
Sales Engagement Tools Built-in: No
Training Included: No
Unlimited Data offered: No, Limited to Lists

9. Apollo.io

Headquarters: San Francisco, CA

No dedicated reseller program or API for resellers but partnership opportunities.

Enrichment Only
# of Contacts in Database: 200M
Mobile Direct Dials included: Very Minimal Amount, main focus on email
Re-Verification Schedule: Not Advertised
# of Technologies Tracked: 1500
# 0f CRM Integrations – 4
Sales Engagement Tools Built-in: Yes
Training Included: No
Unlimited Data offered: Yes – but limited functionality, API limitations.

10. Datarade

Headquarters: Berlin, Germany

Uses API
# of Contacts in Database: 18.5M
Mobile Direct Dials included: Yes
Re-Verification Schedule: Relies on other data providers
Intent Data: No
# of Technologies Tracked: 25K
# 0f CRM Integrations – Relies on other data providers for integration
Sales Engagement Tools Built-in: No
Training Included: No
Unlimited Data offered: Yes, through Scrapping Technologies

Frequently Asked Questions About the Best B2B Data Resellers

1. What is a B2B data reseller?
A B2B data reseller collects and sells business contact and firmographic data for sales, marketing, or research purposes.

2. Which reseller offers the most accurate data?
Lead411 is known for ~96% accuracy through real-time verification, making it one of the most trusted B2B data providers.

3. How frequently is the data updated?
Lead411 updates its data every 90 days or less. Other platforms like Apollo or ZoomInfo may update quarterly or semi-annually.

4. Are these platforms GDPR / CCPA compliant?
Most top platforms including Lead411, Demandbase, and Lusha are GDPR and CCPA compliant, using ethical data sourcing practices.

5. Which provider is best for email deliverability?
Lead411 has high deliverability rates thanks to triple-verified email data, outperforming many competitors in reliability.

6. Do providers include mobile direct dial phone numbers?
Yes, Lead411, RocketReach, and LakeB2B include mobile direct dials. Some resellers focus primarily on email-only data.

7. Can these platforms integrate with CRMs?
Most providers including Lead411, Apollo, and Demandbase integrate with Salesforce, HubSpot, Outreach, and more.

8. What types of data do they provide?
These platforms offer contact data, company firmographics, technographics, buyer intent signals, and enrichment tools.

9. Which reseller provides intent data?
Lead411 and Demandbase offer Bombora-powered intent data, helping sales teams identify in-market prospects.

10. How do I choose the right provider?
Look for accuracy, search limits, integrations, data freshness, and cost. Lead411 offers a strong balance of all five.

11. Are there free or trial options?
Yes. Lead411 offers a free trial, and some competitors like Apollo have limited free tiers or demo access.

12. Is buying B2B data worth it for small businesses?
Absolutely. B2B data helps small businesses scale outreach, identify ICPs, and drive faster pipeline growth.

13. Can I upload my own list for enrichment?
Yes, most platforms like Lead411 allow list uploads to enrich contacts with emails, direct dials, and company info.

14. Which provider is most cost-effective?
Lead411 offers unlimited search and verified data at a lower monthly cost than most competitors, making it ideal for SMBs.

15. What about mobile app or browser extension support?
Lead411 and RocketReach offer Chrome extensions for LinkedIn and web prospecting. Some others may not provide this feature.

The Highest Quality Data at your Fingertips

Number of Contacts

Number of Companies Worldwide

Searchable Technologies

Growth Intent Trigger Topics

Why Choose Lead411?

Our sales intelligence tracks key company events that indicate spending and growth. Sell into companies at the perfect time and get to your R.O.I quicker. Access Unlimited B2B Data with zero limitations.

Quality Data

The Only Provider With Triple Verified Emails

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Email Verification

The email addresses in our database are verified using SMTP, human-verified, and email open validation.

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Live A.I. Research

If an email address isn’t currently in our database, use our A.I. based research tool on the fly to find the best possible match.

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Re-Verification Schedule

We have an unmatched email verification schedule compared to the competition; all of our emails are re-verified every 3-6 months.

Phone Numbers

Double Verified Direct Dials

Phone prospecting is one of the more labor-intensive activities in the space. Dialing to numbers that are out of date, general information lines or incorrect is not only ineffective, but it’s also incredibly frustrating. You can change all of that. Be more successful with Lead411’s double verified b2b direct dials.

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