If you're short on time, start with these three providers:
Leadsforge: Best for GTM teams and agencies that need verified emails, mobile numbers, and LinkedIn profiles. It combines chat-based prospecting with waterfall enrichment across 20+ data providers.
ZoomInfo: Best for enterprise sales teams that need detailed North American contact data, buying intent signals, and organizational charts.
Apollo.io: Best for SDRs who want to find B2B contacts and manage email outreach from one platform.
Here's how I evaluated the providers on the full list.
What I Looked for in a B2B Data Provider
I weighed each provider on five things:
Data accuracy: Emails and phone numbers are verified before they reach your list.
Coverage: The database reaches the regions, industries and job levels you sell to.
Credit rules: One credit has a clear value, and the rollover terms are easy to find.
Workflow fit: Lists export to a CRM or an outreach tool without manual cleanup.
Reviewer feedback: G2 users report how the provider performs on data quality, support and contract terms.
A Quick Comparison of 8 B2B Data Providers for 2026
Let's now have a quick overview of each tool from the following table.
Real-time email verification with a stated 95% accuracy rate
$74/month
7-day trial (5 credits)
4.7/5
8 Best B2B Data Providers for 2026: A Detailed Review
Let's now look at each of the tools in detail.
1. Leadsforge
Leadsforge is an AI-powered B2B data provider that helps you find verified emails, mobile numbers, and LinkedIn profiles. It gives you access to a database of 500M+ contacts.
Best for: GTM teams, sales agencies, and businesses that want to build targeted prospect lists with less manual research.
User Ratings
G2: 4.6/5 ⭐
Why Is Leadsforge One of the Best B2B Data Providers?
Leadsforge offers several ways to find and enrich B2B contacts:
AI-powered search: Describe your ideal customer profile in a chat prompt. For example, find heads of sales at SaaS companies in the UK with 50 to 200 employees.
Company lookalikes: Find companies similar to your existing customers.
Competitor followers: Identify people who follow your competitors on LinkedIn.
Buying signals: Find companies based on funding, acquisitions, hiring, and job changes.
CSV enrichment: Upload existing contact lists to find missing emails, phone numbers, and LinkedIn profiles.
Leadsforge also uses waterfall enrichment to check 20+ data providers for contact details. You can set custom qualification criteria to evaluate and filter prospects based on your ICP.
Its credit system lets you search and refine lists without spending credits. You pay 1 credit for a work email or LinkedIn URL and 10 credits for a mobile number. Unused credits never expire.
Once your list is ready, export it as a CSV or send it to Salesforge for outreach. You can also connect HubSpot and Salesforce or use its API, MCP, and CLI integrations.
Overall, Leadsforge is a strong option for teams that need targeted B2B contact data, multiple enrichment sources, and flexible prospecting options in one platform.
Pros of Leadsforge
Finds prospects from a chat prompt instead of boolean filters
Checks 20+ data providers in a waterfall before a contact reaches your list
Includes company lookalikes, competitor followers and buying signals on the Essential plan
Offers API, MCP and CLI access with HubSpot and Salesforce integrations
Cons of Leadsforge
Verified mobile numbers use 10 credits each, against 1 credit for a work email
Leadsforge does not send emails, so outreach runs through Salesforge or another tool
Leadsforge Pricing
Essential Plan: $49/month billed monthly for 2,000 credits, or $588/year for 28,000 credits granted upfront
Extra Credits: Available in the plan builder, with the price shown for the number of credits you choose
Free Trial: Leadsforge does not offer a free trial. New accounts get 100 free credits instead.
ZoomInfo is a B2B data and go-to-market intelligence platform that helps you find contacts, track buying intent and map target accounts. It sells its platform as GTM Workspace, with a database of 500M contacts.
Best for: Enterprise sales teams that sell into North America and want contacts, intent signals and org charts from one data source.
User Ratings
G2: 4.5/5 ⭐
Why Is ZoomInfo One of the Best B2B Data Providers?
ZoomInfo combines contact data with account intelligence:
Contact and company search: Filter contacts by role, seniority, company size and industry.
Intent data: See which accounts are researching topics related to your product.
Website visitor tracking: WebSights shows which companies visit your website.
Org charts: See reporting lines and buying committees at a target account.
CRM enrichment: Keep Salesforce and HubSpot records updated with fresh contact data.
ZoomInfo's coverage runs deepest in North America. Sales reps reveal contact details with credits, and a Chrome extension shows the data on LinkedIn profiles and company websites.
Paid plans come as custom quotes on annual contracts. Critical G2 reviews often mention the 60-day notice needed to stop an auto-renewal.
Overall, ZoomInfo is a good fit for enterprise sales teams that want contact data, intent signals and account mapping from one vendor on an annual contract.
Pros of ZoomInfo
Covers North American contacts and companies in depth
Adds intent data and website visitor tracking to contact search
Shows org charts for mapping buying committees
Syncs and enriches Salesforce and HubSpot records
Cons of ZoomInfo
Paid plans need a custom quote, an annual contract and 60 days of notice to cancel
G2 reviewers report outdated job titles and higher bounce rates outside North America
ZoomInfo Pricing
ZoomInfo Lite Plan: $0 for 10 credits a month, with no credit card required
GTM Workspace Paid Plans: Custom quote on an annual contract. For the price, you can contact ZoomInfo's sales team.
Free Trial: ZoomInfo Lite works as the free way to test the data before a paid contract.
Apollo.io is a sales intelligence and engagement platform that helps you find B2B contacts and reach them from the same workspace. It combines a contact database with email sequences and a dialer.
Best for: SDRs and small sales teams that want to find contacts and run basic email sequences from the same login.
User Ratings
G2: 4.7/5 ⭐
Why Is Apollo.io One of the Best B2B Data Providers?
Apollo.io brings prospecting and basic outreach into one login:
Contact search: Filter the database by job title, company size and industry.
Email sequences: Build multi-step sequences with follow-ups from the same screen as the list.
Built-in dialer: Call prospects from inside Apollo.io.
Waterfall enrichment: Check several providers for a missing email or phone number on the Professional plan and above.
Chrome extension: See Apollo.io contact data on LinkedIn profiles and company websites.
Its credit system charges 1 credit for an email reveal and 8 credits for a phone number reveal. Admins can set credit caps for each user to protect the shared balance.
G2 reviewers report outdated job titles and bounced emails, especially for contacts outside the US. Verify each list before it goes into a sequence.
Overall, Apollo.io is a good fit for SDRs and small sales teams that want contact data and outreach on one bill at a listed price.
Pros of Apollo.io
Combines contact search, email sequences and calling in one platform
Offers waterfall enrichment on the Professional plan
Provides a Chrome extension that shows contact data on LinkedIn profiles
Cons of Apollo.io
G2 reviewers report outdated job titles and bounced emails
Phone numbers use 8 credits each, against 1 credit for an email
Apollo.io Pricing
Free Plan: $0 for 900 credits per year
Basic Plan: $49/seat/month billed annually or $65/seat/month billed monthly
Professional Plan: $79/seat/month billed annually or $99/seat/month billed monthly
Organization Plan: $119/seat/month billed annually, with a 3-seat minimum
Free Trial: 14 days with 75 credits on the Basic plan and the Professional plan
4. Lusha
Lusha is a B2B contact data platform that helps you reveal direct dials, mobile numbers and work emails while you browse LinkedIn or company websites. It works mainly through its Chrome extension.
Best for: Account executives and SDRs who look up a few contacts a day on LinkedIn and want a phone number in one click.
User Ratings
G2: 4.3/5 ⭐
Why Is Lusha One of the Best B2B Data Providers?
Lusha is set up for fast lookups during the working day:
Chrome extension: Reveal contact details on a LinkedIn profile or a company website in one click.
Prospecting search: Build lists by job title, seniority and industry.
Bulk enrichment: Enrich a CSV file or CRM records in one pass on the Starter plan and above.
Signals: Track job changes and other buying signals on the Pro plan.
API and webhooks: Connect Lusha data to internal tools on the Pro plan.
Lusha meters every reveal from one shared credit pool. A verified email costs 1 credit, and a phone number costs 5 credits. Monthly plans roll unused credits over up to twice the monthly cap. Annual plans reset unused credits at the end of the year.
CRM integrations with Salesforce and HubSpot come with the Free plan. Lusha also holds ISO 27701 certification alongside GDPR and CCPA compliance.
Overall, Lusha is a good fit for reps who look up a few named contacts a day and want a phone number without building a full list.
Pros of Lusha
Reveals phone numbers and emails on LinkedIn in one click
Includes CRM integrations on the Free plan
Adds API access, signals and webhooks on the Pro plan
Holds ISO 27701 certification alongside GDPR and CCPA compliance
Cons of Lusha
G2 reviewers say coverage drops outside the US and UK
Each phone number uses 5 credits, so the 400-credit Starter plan covers 80 numbers
Lusha Pricing
Free Plan: $0 for 40 credits a month and 1 seat
Starter Plan: $37.45/month billed annually or $49.90/month billed monthly (400 credits a month, 1 seat)
Pro Plan: $52.45/month billed annually or $69.90/month billed monthly (600 credits a month, 2 seats)
Premium Plan: $299.95/month billed annually or $399.90/month billed monthly (3,400 credits a month, 5 seats)
Scale Plan: Custom quote for more than 5 users. For the price, you can contact Lusha's sales team.
Free Trial: Lusha lists a Free plan with 40 credits a month in place of a free trial.
5. Cognism
Cognism is a B2B data provider that helps you reach decision-makers in the UK and Europe by phone and email. Its researchers verify mobile numbers by calling them.
Best for: Sales teams that cold call into the UK and Europe and need verified mobile numbers screened against do-not-call lists.
User Ratings
G2: 4.5/5 ⭐
Why Is Cognism One of the Best B2B Data Providers?
Cognism pairs contact data with compliance checks:
Contact and company data: Search emails and mobiles with job titles, revenue and headcount.
Diamond Data: Reach mobile numbers that Cognism's researchers verify by phone.
Do-not-call screening: Check records against do-not-call registers before they reach you.
Signals: Track hiring, funding, acquisitions and job changes at target accounts.
MCP and API access: Send contacts into AI assistants and internal tools.
One credit reveals one full contact with emails and mobile numbers together. Viewing a contact you already revealed costs nothing. The Pro plan adds Bombora intent data on 12 topics chosen from 11,000+.
Cognism sells the Standard plan and the Pro plan with 5 seats each. Contracts renew automatically for at least a year unless you give notice 60 days before the end of the term.
Overall, Cognism is a good fit for sales teams that call into Europe and need mobile numbers checked against do-not-call registers.
Pros of Cognism
Verifies mobile numbers by phone through Diamond Data
Screens contacts against do-not-call registers
Reveals a full contact with emails and mobiles for 1 credit
Includes MCP and API access on the Standard plan
Cons of Cognism
The Standard plan and the Pro plan need a custom quote and an annual contract
G2 reviewers report thinner coverage in North America
Cognism Pricing
Standard Plan: Custom quote with 5 seats included. For the price, you can contact Cognism's sales team.
Pro Plan: Custom quote with 5 seats included, adding Bombora intent data and on-demand mobile verification
CRM Enrichment: From $12,000/year as an add-on or a standalone product
Free Trial: Cognism does not offer a self-serve free trial. It offers a free sample of 25 leads instead.
6. Seamless.AI
Seamless.AI is a real-time B2B contact search engine that helps you find emails and phone numbers for prospects. It builds each contact record at the moment of search instead of serving a stored one.
Best for: High-volume SDR teams that prospect in fast-moving markets and want recent job changes to show up in search results.
User Ratings
G2: 4.4/5 ⭐
Why Is Seamless.AI One of the Best B2B Data Providers?
Seamless.AI puts fresh contact records first:
Real-time search: Find contacts that a stored database may have missed after a job change.
Chrome extension: Find contacts while browsing LinkedIn or company websites.
Data enrichment: Fill in missing details on existing records for 1 credit per contact.
Autopilot: Build lists on a schedule from criteria you set.
Connect: Run email, calls and tasks from inside Seamless.AI.
A click on Find returns a person's emails and phone numbers for 1 credit. An AI Assistant drafts outreach copy from contact data for 0.2 credit per message.
Paid plans are annual and need a custom quote. They renew for 12 months unless you cancel 60 days before the renewal date.
This Seamless.AI review explains what users report about its data and contracts.
Overall, Seamless.AI is a good fit for high-volume SDR teams that want recently changed job titles to appear in their searches.
Pros of Seamless.AI
Builds contact records in real time at the moment of search
Returns emails and phone numbers for 1 credit per contact
Includes Connect for email, calls and tasks
Cons of Seamless.AI
G2 reviewers report data accuracy that varies from search to search
Paid plans renew for 12 months unless you cancel 60 days before renewal
Seamless.AI Pricing
Free Plan: $0 for 50 credits and 1 user, with no monthly refresh
Pro Plan: Custom quote per user with annual credit packages. For the price, you can contact Seamless.AI's sales team.
Enterprise Plan: Custom quote for unlimited users and custom credit packages
Add-ons: AI Assistant, Data Enrichment, Autopilot and Buyer Intent are sold as custom quotes
Free Trial: Seamless.AI does not offer a free trial. The Free plan with 50 credits is the way to test the data.
7. RocketReach
RocketReach is a contact lookup platform that helps you find emails and phone numbers for named people. It covers more than 700 million professional profiles and 60 million companies.
Best for: Sales reps and recruiters who look up named individuals across industries and need contact details beyond standard B2B job roles.
User Ratings
G2: 4.4/5 ⭐
Why Is RocketReach One of the Best B2B Data Providers?
RocketReach reaches people outside standard B2B databases:
Person search: Find contacts by name, employer, title or LinkedIn URL.
Bulk lookups: Upload a CSV file and enrich it in one pass.
Email sequences: Send up to 500 emails a day with help from an AI email writer.
Chrome extension: Reveal contacts on LinkedIn and company websites.
CRM integrations: Connect Salesforce, HubSpot and Outreach on the Pro plan and above.
RocketReach uses up a lookup only when it finds and verifies an email or a phone number. Empty lookups are refunded. API access comes with each individual plan.
The Essentials plan covers email addresses. Phone numbers start on the Pro plan, and intent data starts on the Ultimate plan.
Overall, RocketReach is a good fit for sales reps and recruiters who need contact details for people that B2B-only databases skip.
Pros of RocketReach
Covers 700M+ profiles and 60M+ companies
Refunds lookups that return no verified email or phone
Includes API access on the Essentials plan, the Pro plan and the Ultimate plan
Cons of RocketReach
The Essentials plan gives email addresses without phone numbers
G2 reviewers report accuracy gaps on senior contacts
RocketReach Pricing
Essentials Plan: 33/monthbilledannually(399/year), with email addresses only and 1,200 exports a year
Pro Plan: 75/monthbilledannually(899/year), with phone numbers, CRM integrations and 3,600 exports a year
Ultimate Plan: 142/monthbilledannually(1,699/year), adding intent data and 20,000 exports a year
Monthly Billing: Available on each plan at a higher price that RocketReach notes can vary by region
Team Plans: Custom quote with pooled credits. For the price, you can contact RocketReach's sales team.
Free Trial: RocketReach does not offer a free trial. A free account includes 5 lookups to test the data.
8. UpLead
UpLead is a B2B contact database that helps you find verified work emails and mobile direct dials. It verifies each email in real time at a stated 95% accuracy rate.
Best for: Founders and small sales teams that care more about low bounce rates than database size and want one contact per credit.
User Ratings
G2: 4.7/5 ⭐
Why Is UpLead One of the Best B2B Data Providers?
UpLead puts data accuracy ahead of database size:
Prospector search: Filter companies and contacts by industry, headcount and revenue.
Email verification: Check each email at the moment of export.
Technographics: Find companies that use any of 16,000+ technologies on the Plus plan.
Data enrichment: Update company and contact data in your CRM on the Plus plan.
Buyer intent data: Find in-market accounts on the Professional plan.
One credit unlocks one contact for download or CRM export. That credit covers the work email and the mobile direct dial together. Suppression lists keep contacts already in your CRM out of new searches.
UpLead integrates with Salesforce, HubSpot and Pipedrive, plus outreach tools such as lemlist. The Essentials plan and the Plus plan are single-user accounts.
Overall, UpLead is a good fit for founders and small sales teams that want fewer bounces from a smaller, verified database.
Pros of UpLead
Unlocks the email and the mobile direct dial together for 1 credit
Verifies emails at a stated 95% accuracy rate
Adds technographics on 16,000+ technologies on the Plus plan
Cons of UpLead
The Essentials plan and the Plus plan are single-user accounts
Buyer intent data and full API access start on the Professional plan
UpLead Pricing
Essentials Plan: $74/month billed annually for 2,040 credits a year, or $99/month billed monthly for 170 credits a month
Plus Plan: $149/month billed annually for 4,800 credits a year, or $199/month billed monthly for 400 credits a month
Professional Plan: Custom quote on annual billing with custom seats and credits. For the price, you can contact UpLead's sales team.
Extra Credits: $0.60 per credit on the Essentials plan and $0.50 per credit on the Plus plan
Free Trial: 7 days with 5 credits
How to Choose the Right B2B Data Provider
Before choosing a B2B data provider, consider who you sell to and how many contacts you need each month.
List the regions and industries you sell into, then check coverage there with a sample search.
Decide whether your outreach needs mobile numbers for calling or work emails for cold email.
Check what one credit buys, because a phone number can cost 5 to 10 times more than an email.
Confirm whether unused credits roll over or reset at the end of the month or year.
Read the renewal clause and the notice period before you sign an annual contract.
Count the seats you need, since some providers price per user and others by credits.
Test 20 to 50 contacts you already know and count how many emails and numbers are correct.
Check that lists export to your CRM and your outreach tool without manual cleanup.
Ask whether buying signals such as funding and hiring come with your plan or as an add-on.
Verify every new list before sending, even when the provider states a high accuracy rate.
If you plan to email the list, this guide to cold email spam rates explains how to keep messages out of spam.
Final Verdict: Which B2B Data Provider Should You Choose?
The right provider depends on your target market and outreach needs. ZoomInfo is a strong option for enterprise sales teams, while Cognism suits teams that focus on European markets. Lusha and RocketReach work well for individual contact lookups.
If you're running a GTM team or agency and building prospect lists for cold email and LinkedIn outreach, I'd recommend Leadsforge. It gives you access to 500M+ contacts and uses waterfall enrichment across 20+ data providers to find verified contact details.
B2B data providers are companies that sell contact and company data for sales and marketing. The data includes work emails, phone numbers and job titles. It also covers firmographics such as headcount and revenue. Sales teams use it to build prospect lists and keep CRM records current.
2. How Do B2B Data Providers Collect Their Data?
B2B data providers combine public sources with licensed data and verification. Public sources include company websites, social profiles and business registries. Many providers buy data from other vendors and verify emails before delivery.
3. How Much Do B2B Data Providers Cost?
Prices range from free plans to five-figure annual contracts. Self-serve providers such as Leadsforge, Lusha and UpLead start between $37.45 and $74 per month. ZoomInfo, Cognism and Seamless.AI sell paid plans through custom quotes on annual contracts. The final cost depends on credits, seats and the credit price of each phone number.
4. What Is Waterfall Enrichment?
Waterfall enrichment is a method that checks several data providers one after another until one returns a verified contact. It raises the match rate compared with a single database. Leadsforge runs every lookup through a waterfall of 20+ providers and charges credits for verified results.
This Apollo vs ZoomInfo comparison explains how two of the largest databases find contacts.
5. Which B2B Data Provider Has the Best Data Accuracy?
No provider is accurate for every region and every role. UpLead states a 95% email accuracy rate, and Cognism verifies mobile numbers by phone. Test any provider on 20 to 50 contacts you already know before you buy a plan.
6. Are B2B Data Providers GDPR Compliant?
Large providers such as ZoomInfo, Cognism and Lusha publish GDPR and CCPA compliance. Compliance on the vendor side does not cover your own outreach. Your legal basis for contacting a person still depends on the country you sell into.
7. Can I Send Cold Emails From a B2B Data Provider?
Apollo.io, RocketReach and Seamless.AI include basic email features. Other providers hand the list to an outreach tool. Leadsforge exports lists straight into Salesforge, which runs email and LinkedIn sequences from unlimited mailboxes.
8. How Do I Protect Deliverability When Emailing a New List?
Verify every email before you send, and start slowly from warmed mailboxes. A new mailbox needs about 14 days of warmup before a campaign. Warmforge warms mailboxes and shows a Heat Score™, a health score where 85 or more means the mailbox is ready to send. Sending from separate domains through Mailforge keeps your main company domain safe.
The 2026 State of B2B GTM Report surveyed 300 B2B software and AI companies. Outbound gained more ground as a primary motion than almost any other and cold outreach is still core for 46% of companies. Budget is now moving to signal-based outbound, the second biggest investment bet for 2027.
Compare the 7 best places to find doctors email lists in 2026. Explore features, pricing, and contact data to choose the right provider for your needs.
