8 Best B2B Contact Data Providers [2026 Comparison]

Choosing a B2B contact data provider affects who you can reach, how much effort prospecting takes, and how reliably your CRM routing and scoring work.​​​​​​​​​​​​​​​​

Most teams already use some form of contact data provider. The problem is that many of those tools were designed for list building and periodic exports, not for workflows that need to stay accurate as data changes.                                                    

What changes in 2026 is how closely that data needs to fit the way teams actually work. Some teams rely on list building and exports. Others pull contact data directly into CRMs, enrichment jobs, AI agents, or outbound systems and expect it to stay usable without constant cleanup.

This guide compares 8 B2B contact data providers with that reality in mind. Each one is described based on who it serves best, how contact data is delivered, and the trade-offs teams typically encounter when using it.

What Is a B2B Contact Data Provider?

A B2B contact data provider gives teams access to information about people inside companies they want to reach. This usually includes names, roles, company details, and professional contact information.

Teams rely on these providers to:

• Find new prospects for outbound sales

• Enrich CRM records so routing and scoring stay accurate

• Support automated GTM workflows that depend on structured people data

Providers differ in how they deliver contact data. Some focus on UI-based list building. Others are designed for programmatic access so data can be pulled directly into internal systems. That difference shapes how well a provider fits into day-to-day workflows.

8 Best B2B Contact Data Providers Comparison

Every B2B contact data provider solves a slightly different problem. Some are built for list building and manual prospecting. Others are designed to supply contact data directly into systems where it can be filtered, enriched, and acted on programmatically.

The table below compares eight providers across delivery model, data scope, and ideal use case. 

1. Crustdata

Crustdata is an API-first B2B contact data provider built for teams building AI agents, recruiting platforms, and deal sourcing tools. The platform aggregates data from 16+ verified sources to deliver over 250 company fields and 90 people fields for workflows that identify prospects, trigger outreach based on role changes, and maintain accurate contact records.

Key Features

• Real-Time Contact Enrichment: Append missing email addresses, phone numbers, and social profiles to existing leads or accounts through live data crawling at the moment of request

• Email-to-Profile Enrichment: Send a business email and receive complete professional profiles including current job title, skills, social links, and detailed work history

• Multi-Source Data Integration: Combine contact information from multiple public sources including social platforms, SEC filings, funding announcements, and employee ratings into unified profiles

• Webhook Profile Monitoring: Receive instant notifications through the Watcher API when tracked contacts change jobs, update profiles, or show notable activity for timely outreach

• Flexible Data Delivery: Access enriched contact records through API integration or download lead databases as parquet files for immediate use in outbound campaigns

Pros

• Supports programmatic workflows where contact data needs to stay relevant and up-to-date inside internal systems

• Automatically surfaces new contacts when companies meet your criteria, so prospect lists stay current without manual rebuilding

• Enriches only the specific contacts you query instead of requiring bulk database purchases, reducing costs for teams that don't need entire contact list

Cons

• Requires technical setup to get full value from APIs and webhooks

Pricing

Crustdata offers a free trial and custom pricing that scales with API consumption.

2. Cognism

Cognism is a sales intelligence and contact data provider used by outbound teams operating in regulated markets. It emphasizes managed data delivery and compliance-focused processes alongside contact and account data.

Key Features

• Diamond Data: Access phone-verified mobile numbers with 87% connect rates, significantly higher than industry standard direct dial accuracy

• Diamonds-on-Demand: Request fresh mobile number verification within 48 hours when existing contact data doesn't meet quality standards

• AI/ML Email Verification: Validate email deliverability using artificial intelligence and machine learning algorithms combined with SMTP checks before emails enter your system

• VP+ Contact Refresh: Automatically update vice president and C-level contacts every 30-60 days to account for high executive turnover rates

• Compliance-First Verification: Maintain GDPR and CCPA compliance with 13-country Do Not Call list checking to protect teams from regulatory violations

Pros

• Supports teams operating under strict compliance requirements

• Handles GDPR compliance checks, removing the need for internal legal review of contact data

• Fits structured outbound sales motions

Cons

• Centers usage around UI-driven workflows

• Limits flexibility for custom or API-first data pipelines

• Constrains targeting logic to predefined platform workflows

Pricing

Cognism pricing is custom and varies by region, seat count, and data access. Contact sales for a quote.

3. Lead411

Lead411 is a B2B lead generation database that combines contact records with sales alerts tied to company activity. It is commonly used by teams that want event-based signals to guide outbound timing.

Key Features

• Triple Email Verification: Validate every email address through SMTP checks, AI pattern recognition, and human verification for maximum accuracy

• Send Technology Verification: Test email deliverability across different platforms and providers to ensure messages reach inboxes rather than spam folders

• Double-Verified Direct Dials: Confirm phone number accuracy through two separate validation processes before contact data enters your CRM

• 90-Day Re-Verification Cycle: Automatically recheck all contact data quarterly to catch job changes, disconnected numbers, and updated email addresses

• 24-Hour On-Demand Verification: Refresh critical contacts before major campaigns with same-day verification for highest-priority outreach targets

Pros

• Adds event context to contact discovery

• Supports timing-based outreach

• Works well for alert-driven prospecting

Cons

• Provides event alerts for timing but lacks comprehensive org charts, budget cycle data, and multi-stakeholder buying group analysis

• Limits flexibility outside native workflows

• Restricts high-volume enrichment and automated workflows through limited API functionality

Pricing

Lead411 offers a 7-day free trial with paid plans starting at $49/month per user. Annual subscriptions include discounted rates.

4. Demandbase

Demandbase is an account-based marketing platform that includes contact and account data to support ABM execution. It is designed to coordinate sales and marketing activities at the account level rather than contact-first prospecting.

Key Features

• Real-Time Enrichment: Automatically update new CRM contact records as they're created when they match configured enrichment criteria

• Email Validation: Run verification checks across all CRM and marketing automation contacts to confirm deliverability and flag risky addresses

• Scheduled Enrichment Workflows: Configure automated contact data updates to run hourly, daily, or weekly through Data Integrity workflows

• Forms Enrichment: Capture visitor contact data through IP-API and Domain API methods, using email addresses to identify companies and append contact details to form submissions

• Multi-API Priority: Ensure contact identification accuracy by preferring Domain API results (based on email) over IP-API or Company Autocomplete for higher reliability

Pros

• Aligns sales and marketing around shared accounts

• Supports large ABM programs

• Provides account-level buying signals and decision-maker mapping across departments, not just individual contact records

Cons

• Prioritizes account orchestration over contact-first prospecting

• Requires significant setup and cross-team coordination

• Offers limited flexibility for standalone contact enrichment

Pricing

Demandbase uses custom enterprise pricing based on modules, account volume, and contract length. Contact sales for a quote.

5. Lusha 

Lusha is a B2B contact data provider focused on fast access to contact details during prospecting. It is commonly used by individual sales reps and small teams that need lightweight enrichment without complex setup.

Key Features

• Confidence Scoring: Evaluate contact data quality with confidence scores across every email and phone number record

• List Verification: Automatically enrich and validate email addresses and phone numbers before outreach campaigns to reduce bounce rates and protect sender reputation

• Bulk Contact Enrichment: Process thousands of contact records simultaneously through CSV uploads or Google Sheets integration, appending verified emails, phone numbers, and job titles at scale

• Real-Time Verification: Check email deliverability and phone number validity at the point of enrichment to ensure current contact information

• Chrome Extension: Reveal verified contact information directly on LinkedIn profiles and Sales Navigator without switching tools or exporting data

Pros

• Speeds up individual rep workflows

• Has a low barrier to entry

• Works well for small teams

Cons

• Caps usage through credit-based limits

• Provides limited account-level or organizational context

• Supports manual prospecting better than automation-heavy workflows

Pricing

Lusha offers a free plan with 40 credits per month and paid plans starting at $22.45/user/month billed annually for 3,000 credits per year. Higher tiers start at $52.45/month (7,200 credits) and custom enterprise plans with advanced features.

6. Datanyze 

Datanyze provides technographic and market intelligence data alongside business contacts. It is commonly used to support prospecting and targeting in technology-focused segments.

Key Features

• Verified Direct Dials: Access verified phone numbers with regular verification updates focused on established companies and North American markets

• Technology-Linked Contacts: Identify decision-makers at organizations running specific tech stacks by connecting contact data to technographic intelligence

• Continuous Verification: Maintain contact accuracy through automated refresh cycles that update firmographic and employee information regularly

• Mobile Number Accuracy: Access verified mobile phone numbers with high accuracy for direct outreach to decision-making units

• Credit-Based Contact Access: Pay only for accurate contact data with a credit system where each retrieved contact consumes credits

Pros

• Supports tech-focused prospecting

• Adds context beyond basic firmographics

• Helps align outreach with product fit

Cons

• Centers more on technographic insights than direct contact discovery

• Covers non-technology industries less deeply

• Supports limited large-scale enrichment or automation workflows

Pricing

Datanyze offers a 90-day free trial with paid plans starting at $29/month per user. Enterprise plans require custom quotes.

7. Hunter.io 

Hunter.io is a B2B contact data provider focused on finding and verifying professional email addresses tied to companies and domains. It is most often used by sales, marketing, and growth teams that prioritize outbound email accuracy over broad account intelligence.

Key Features

• Email Finder: Discover professional email addresses using name and company domain, with automatic verification and confidence scoring for each result

• Multi-Layer Email Verification: Validate email addresses through syntax checks, domain verification, MX records, SMTP server testing, and catch-all detection before sending

• Bulk Email Verification: Process large contact lists simultaneously through CSV uploads or Google Sheets integration to check thousands of emails at scale

• Disposable Email Filtering: Identify and filter temporary or disposable email addresses that are typically used to bypass authentication

• Domain Search: Extract all email addresses associated with a specific company domain along with contact names and job titles

Pros

• Improves email deliverability by reducing hard bounces

• Works well for outbound email campaigns

• Offers clear, focused functionality

Cons

• Focuses narrowly on email discovery rather than full contact profiles

• Excludes role hierarchy, seniority, and buying context

• Lacks account-level and intent-based signals

Pricing

Hunter.io offers a free plan with 25 monthly searches and paid plans starting at $49/month for 2,000 credits. Annual billing provides two months free.

8. ZoomInfo

ZoomInfo is a B2B contact data provider widely used by mid-market and enterprise sales teams that want large-scale contact and company coverage delivered through a sales-facing platform. It is most often used for prospecting, account research, and CRM population within structured sales workflows.

Key Features

• Proprietary Send-and-Bounce Data: Overcome SMTP check limitations by leveraging unique bounce data to verify domains that cannot be validated through standard methods alone

• Multi-Layer Verification: Combine Natural Language Processing, AI, machine learning, and 300+ in-house researchers to validate contact information through both automation and human expertise

• Real-Time Contact Enrichment: Automatically update contact and account records across your tech stack on-demand, on-schedule, or in real-time through APIs and webhooks

• Contact Accuracy Scoring: Evaluate contact reliability using machine learning algorithms that assess multiple factors beyond just last updated date or human verification status

• Multi-Vendor Data Enrichment: Access contact data from 60+ vendors through flexible, rules-based enrichment workflows via a codeless interface

Pros

• Covers a wide range of roles and markets

• Fits well into enterprise sales workflows

• Combines contact and company context in one system

Cons

• Relies heavily on UI-based workflows

• Offers limited flexibility for API-first use cases

• Requires long-term contracts for most customers

Pricing

ZoomInfo pricing is custom and varies by features, user count, and contract length. 

Which B2B Contact Data Provider Should You Choose?

The right B2B contact data provider depends on how your team works and what systems you're feeding.

UI-first providers like ZoomInfo, Lusha, or Lead411 fit teams where reps build lists manually, prospecting happens inside the platform, or simple CRM syncs handle most workflows without custom automation.

API-first providers like Crustdata or Hunter.io work for teams building AI agents or automation platforms, running workflows that require programmatic data access, or enriching records selectively based on triggers rather than in bulk.

ABM-focused platforms like Demandbase serve GTM motions centered on account orchestration, where sales and marketing coordinate around shared targets and individual contact prospecting matters less than account-level campaigns.

How Crustdata Fits Into Modern B2B Contact Data Workflows

Crustdata is built for teams that need contact data to stay accurate inside real systems, not just look good in a prospecting interface. It provides REST APIs and webhooks that push contact and company data into your existing systems as conditions change, without requiring manual exports or UI-based list building.

What sets Crustdata apart is how it supports continuous workflows. Teams use it to power data enrichment workflows that run only when contacts qualify, maintain account-based intelligence without rebuilding lists, and rely on live employee data to keep roles and seniority aligned as organizations change. Event-based updates make it possible to surface new contacts at the right moment, which is critical when AI SDR timing depends on the current context.

For teams building scalable, automated GTM systems, Crustdata offers the most control over how contact data is discovered, enriched, and activated over time.

Book a demo to see why Crustdata is the best fit for modern B2B contact data workflows.

FAQs

Do Contact Data Providers Verify Phone Numbers The Same Way They Verify Emails?

No. Email verification runs automated SMTP checks that happen instantly. Phone verification needs carrier lookups, line-type detection, and sometimes actual dial testing. Cognism even uses human callers to verify mobiles. That's why phone accuracy tends to be lower and why some providers specialize in one contact type over the other.

What Happens To My Contact Data Accuracy When Someone Changes Jobs?

Work emails usually deactivate within days of a job change, and direct dials disconnect within weeks. Real-time providers catch these changes immediately through live crawling. Batch-update systems can take months to reflect the same moves. Job change alerts let you reach contacts before competitors know they switched roles.

Can I Use Multiple Contact Data Providers Without Creating Duplicates?

Yes. Waterfall enrichment checks providers one after another until it finds what you need. If Provider A doesn't have a mobile number, it automatically tries Provider B. You can also set rules for which provider handles specific fields. Just configure your system to only fill empty fields so you don't overwrite existing data.