12 Best B2B Contact Databases for Sales and Marketing

A B2B contact database sits at the centre of modern revenue execution. It determines how effectively organisations can identify, prioritise and engage target accounts, shaping everything from territory planning to pipeline generation.

The quality of that data has direct commercial consequences. Gaps in accuracy, coverage or compliance can limit market reach, distort targeting and reduce confidence in forecasts. This becomes more pronounced in regions such as Europe, where regulatory requirements and market fragmentation add further complexity.

In this guide, we examine what defines a high-quality customer contact database, how leading providers compare and what to consider when selecting a data foundation that supports consistent, scalable revenue growth.

TL;DR

• A contact database underpins how effectively you identify, target and engage accounts
• Data quality,  accuracy, coverage and compliance all directly impact pipeline and forecasting confidence
• US B2B databases dominate the market, but often lack depth and reliability in European data
• Leading platforms include Cognism, Apollo.io, Constant Contact, D&B Hoovers, Lead411, RocketReach, LeadIQ, ZoomInfo, Seamless.AI, 6sense, Demandbase, Breeze Intelligence, and LinkedIn Sales Navigator.
• The right choice depends on your target markets, data requirements and how you operationalise data across sales, marketing and RevOps
• For organisations operating in Europe, compliant, high-quality B2B data is essential for scalable and consistent revenue execution

Let’s get into the list:

1. Cognism

Cognism is a business contact database and a go-to-market intelligence and data infrastructure partner for sales, marketing, and revenue operations (RevOps) teams. With high-quality data you won’t find anywhere else, Cognism delivers data where you need it, to help you work smarter and with full context and control.

What makes Cognism stand out?

• Data quality and compliance: Cognism is the only B2B contact database purpose-built for mid-market and enterprise companies selling into Europe, with local expertise and data fusion models that self-correct for accuracy.
• GTM intelligence platform: The Cognism platform turns data into actionable insight, so your sales team knows when and why to act.
• Data infrastructure and delivery: Cognism’s API and DaaS solution delivers data wherever you need it.

Best for:

Cognism is the best B2B contact database for international expansion into European countries. We speak from experience when we say this, having expanded into France, the DACH region and more using Cognism ourselves. 

Reviewers also agree with this view, with users highlighting that the level of GDPR compliance gives them peace of mind (G2) when doing business in Europe. 

Key features:

• High-quality European data you won’t find anywhere else: 90% coverage of EU decision-makers.
• Fully compliant with global data laws, including GDPR and CCPA compliance, as well as being on more DNC lists than any other provider (15 and counting!).
• A self-correcting data engine; For example, verified mobile numbers that deliver a 3x connect rate.
• Data enrichment for refreshing your CRM with high-quality B2B data.
• Flexible workflows: 2-way CRM integrations and APIs, which help make data available wherever you need it. 

Why customers love Cognism’s B2B database:

“Companies not using Cognism are limiting their sales reps from tapping into this amazing source of prospecting data, and therefore, they’re at a massive disadvantage. Choosing to do things the ‘old-fashioned way’ or manually when Cognism exists doesn’t make any sense.”

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Pricing:

Choose a package to suit your needs; each is inclusive of five seats to get your team started:

• Standard: Includes all the core data you need to prospect, such as company and contact information, and context signals like hiring, funding, and job changes, plus basic dashboards.
• Pro: Includes additional specialist features, such as on-demand mobile phone verification, intent topics, and more.

2. Apollo.io

Apollo.io is a business contact information database that offers access to contact details for your potential leads. Its B2B database includes over 65 advanced search filters, such as company size, job title and more.

Some G2 users have expressed disappointment that Apollo’s emails and numbers are outdated most of the time.

Best for:

Users praise Apollo for being an all-in-one tool (Reddit). It’s great for smaller organisations that need everything in one place, because they don’t need to purchase more tools for outreach and cadence automation.

Key features:

• Identifies prospects actively researching solutions, providing insights and talking points.
• Access contact information, work histories and activity timelines.
• Integrates with popular sales tools like Salesforce, HubSpot, and LinkedIn Sales Navigator.

Pricing:

Apollo’s pricing starts at $49 per user, per month. It offers a free version. All plans have unlimited email credits but limited mobile and export credits.

3. Constant Contact

Constant Contact is a marketing contact database focused on email marketing, contact management and campaign automation. It enables businesses to build and manage contact lists, create campaigns and engage audiences across email and other channels, with an emphasis on ease of use and accessibility.

Best for:

The Constant Contact database is best for small to mid-sized businesses looking for an accessible platform to manage email marketing and customer engagement, rather than organisations requiring advanced B2B data enrichment or large-scale revenue data infrastructure.

Key features:

• Email campaign creation and automation
• Contact list management and segmentation
• Pre-built templates and drag-and-drop editor
• Basic marketing automation workflows with event marketing and registration tools
• Social media posting and ad integration (plus integrations with CRM and third-party platforms)

Pricing:

Constant Contact offers tiered, subscription-based pricing, typically structured by the size of your contact database and the features you access.

Plans scale as contact lists grow, with higher tiers unlocking advanced automation, segmentation and reporting capabilities. Pricing is generally positioned for SMBs, with costs varying based on list size and required functionality. 

4. Dun & Bradstreet

D&B Hoovers is a company contact information database. It helps sales and operations teams find qualified leads and new business opportunities. Its data covers existing customers, high-value prospects, and legacy data.

Some G2 reviewers have called out D&B Hoovers for its out-of-date or incorrect information.

Best for:

Dun & Bradstreet is favoured for its company insights. Users highlight that being able to view the SWOT matrix for SP500 companies is helpful and makes it ideal for targeting larger corporations (Reddit).

Key features:

• Includes advanced search functions for concepts, technology, and trends.
• Provides alerts for business movements.
• Has an intuitive interface with automated workflow features.

Pricing:

Dun & Bradstreet offers monthly and annual pricing plans, both of which come with credit limits. You can also sign up for a free trial.

5. Lead411

Lead411 is a contact database that provides intent signals and trigger alerts to help businesses identify and reach decision-makers. They offer unlimited data when on annual subscriptions.

Best for: 

Lead411 is widely recognised as a US data provider; some users note that the unlimited contacts don’t match the coverage of larger players (Reddit). For this reason, Lead411 may be better if you require data in specific niches and geographies.

Key features: 

• Find and connect with decision-makers through verified data.
• Sales intelligence features like intent signals.
• White-labeled data for resellers. 

Pricing: 

Lead411’s pricing starts at $49 per user per month. Moving up the tiering system unlocks additional features, including CRM customisations, an AI search assistant, and company news updates.

6. RocketReach

RocketReach is an extensive database of company contacts. It includes over 100 advanced filters, including firmographic filters like annual revenue, number of employees, and geographic location.

Some G2 users rate RocketReach as so-so for data accuracy.

Best for: 

Users find RocketReach particularly useful for getting emails (Reddit). The Chrome extension is popular for finding prospects on LinkedIn.

Key features:

• Features over 700 million professional profiles and 35 million company profiles.
• Integrates with your workflows through an API and a range of custom integrations.
• Tracks and measures the performance of your cold email campaigns.

Pricing:

RocketReach’s pricing plans are designed for individuals or teams. Prices start at $29 per user per month, making it one of the more affordable B2B contact databases.

7. LeadIQ

LeadIQ is a B2B database that finds and captures prospect data, including emails and direct dial phone numbers. Its core features can help sales, customer success, and marketing teams.

Some G2 reviewers are dissatisfied with LeadIQ’s contact info, in particular its hit-or-miss phone numbers.

Best for:

Users love LeadIQ’s integration with Sales Navigator and Outreach (Reddit). However, as mentioned above, some users have had issues with the accuracy of contact data, particularly phone numbers (Reddit). 

Key features:

• Offers a prospecting workflow for identifying, capturing, and pushing leads into sequences.
• Provides AI recommendations for personalised email outreach.
• Enriches contacts with location, email, mobile, job title, and social profiles.

Pricing:

LeadIQ offers several pricing plans, from Free to Enterprise plans. Prices start at $36 per user, per month. You can compare plans or book a demo on its website.

8. ZoomInfo

ZoomInfo is a corporate contact database that provides information about businesses and their contacts. It provides key data points for building a contact list, including names, phone numbers, email addresses, and social media profiles.

It’s a global leader, but not all customers are happy. According to a CB Insights survey, some customers voiced dissatisfaction with ZoomInfo, particularly its contact data quality.

Best for:

ZoomInfo is a comprehensive database, especially if you’re prospecting in the US. Users like how it streamlines the prospecting process and integrates well with other tools (G2).

Key features:

• Automates deduplication, verifies new records and cleanses data.
• Intent signals and buying scoops to alert users to potential customers in real-time.
• Integrates with popular CRM and marketing automation tools.

Pricing:

ZoomInfo’s pricing depends on the package/product suite you want - Sales, Marketing, or Talent. It bases its pricing on licences, credit usage, and desired features.

You’ll have to contact the company for a quote.

9. Seamless.AI

Seamless.AI uses artificial intelligence and a real-time contact data search engine to help businesses find potential leads. Its tools help B2B companies improve their prospecting efforts.

Some G2 reviewers complain that Seamless’s data accuracy rate is low.

Best for:

Users of Seamless.AI enjoy the AI prospect research feature (Reddit). However, the pricing is based on a credit model, which some say means they burn through the credits quickly, and other options, like Apollo, work out cheaper per contact (Reddit).

Key features:

• Automate lead management tasks, such as locating contacts, importing data, and converting leads.
• Integrates with third-party apps like HubSpot, Google Sheets, and LinkedIn.
• Offers buyer intent data to identify leads interested in products or services.

Pricing:

Seamless.AI’s pricing is divided into several plans, from Free to Enterprise. Contact its sales team for custom pricing options.

10. 6sense

6sense offers a variety of features to help business development teams find and engage with potential customers. It uses AI to provide insights into customer behaviour, intent, and interest.

Some G2 users dislike 6sense’s data quality and UX navigation.

Best for:

6Sense is primarily positioned as an ABM platform, rather than solely an online contact database. Users report closing enterprise logos using its intent signal data in their targeted campaigns (Reddit). 

Key features:

• Notifies sellers of recent account activity, buying momentum, and changes in engagement levels.
• Provides a variety of attributes for each contact, including firmographic, technographic, and psychographic data.
• Deanonymises website visitor behaviour and maps it back to accounts.

Pricing:

6sense offers a variety of plans, from Free to Enterprise. You can book a demo through its website.

11. Breeze Intelligence (formerly Clearbit)

Clearbit was a contact management database that offered data on decision-makers and other data products. HubSpot acquired it and rebranded it as Breeze Intelligence.

According to some G2 users, Clearbit’s data contained lots of inaccuracies and duplications.

Best for:

Breeze Intelligence offers extensive functionality for inbound contact data, including form shortening that automatically pre-fills fields. Users find Breeze Intelligence useful for enriching target accounts and find the data fairly accurate (Reddit).

Key features:

• Uses AI and machine learning to clean and refresh company records.
• Includes website visitor identification, lead enrichment features, and lead scoring.
• Offers an IP-to-domain dataset to identify website traffic from target contacts.

Pricing:

 Breeze Intelligence pricing is based on credit packs of 100, 1,000 and 10,000. Packs range from $30 to $700 a month. 

12. LinkedIn Sales Navigator

LinkedIn Sales Navigator is a social networking platform for business professionals, and it also serves as a simple contact database. While browsing, you can easily find and connect with users within or outside your network. 

Best for: 

LinkedIn Sales Navigator is best suited for finding prospects who are registered on LinkedIn. Using Sales Nav alongside a tool like Cognism takes it to the next level, as accurate contact information is available for any LinkedIn profile or company page you visit via the Cognism Browser extension.

Key features: 

• Find and connect with people who are using LinkedIn.
• Intent-based signals across LinkedIn.
• Build a personal brand within and outside of your network.

Pricing: 

LinkedIn Sales Nav has three packages: Core, Advanced, and Advanced Plus. You can also get a free one-month trial before committing to one of them. 

Business Contact Database FAQs

Cognism is the best contact database software available.

We’re the choice for you if:

• You work in B2B - our data isn’t for B2C businesses.
• You work in a mid-market or enterprise sales, marketing or RevOps team - our data isn’t for sole traders or smaller businesses.
• You want to connect with other businesses - our data can’t help you connect with freelancers.
• You want to target EMEA, DACH or APAC- our data is best in these regions.
• You’re concerned about compliance - we’re a fully compliant B2B database.

Click to book your demo today!