# The 11 Best B2B Data Providers & Contact Databases

> The best B2B data provider is ZoomInfo for its unmatched database size and feature depth, followed by Apollo.io for its exceptional value and Cognism for its European data compliance.

- URL: https://topelevens.com/b2b-data-providers
- Last verified: 2026-06-18
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## Ranking

### #1 ZoomInfo · 9.2/9.4
- Best for: Enterprise teams needing the largest, most feature-rich database with advanced intent data and deep filtering.
- Vancouver, WA, USA · founded 2007 · $$$$ (Custom quotes, from $15k/yr)
- ZoomInfo is the top provider because it offers the most extensive and detailed B2B database on the market. Its combination of contact data, firmographics, and high-quality intent signals (via its Scoops feature) makes it the default choice for large sales organizations that can afford the premium price.
- Pro: The platform's company hierarchy and org chart features are unmatched, allowing reps to map out entire buying committees within target accounts in minutes.
- Con: The high cost and mandatory annual contracts with minimum seat requirements (often 3+) put it out of reach for most small businesses and startups.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #2 Apollo.io · 9/9.4
- Best for: Startups and SMBs looking for the best value, combining a massive contact database with built-in sales engagement tools.
- San Francisco, CA, USA · founded 2015 · $$ ($0 to $149/mo/user)
- Apollo.io earns the second spot by offering an incredible package of B2B data and sales automation at an unbeatable price point. While its data accuracy isn't quite at ZoomInfo's level, its 275M+ contact database, generous free tier, and integrated email sequencer make it the go-to choice for lean teams.
- Pro: The free tier is genuinely useful, offering 60 mobile and 120 export credits per year, which is enough for a founder or solo rep to start prospecting immediately.
- Con: The platform can feel overwhelming due to its sheer number of features, and the quality of intent data lags behind more specialized, expensive enterprise tools.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #3 Cognism · 8.8/9.4
- Best for: Sales teams prospecting in Europe who need high-quality, GDPR-compliant mobile numbers and contact data.
- London, UK · founded 2015 · $$$ (Custom quotes, from $10k/yr)
- Cognism stands out for its focus on data quality and compliance, particularly within the EMEA market. Its proprietary 'Diamond Data' provides human-verified mobile numbers, making it the top choice for teams where direct phone outreach is critical and GDPR adherence is non-negotiable.
- Pro: Cognism's strict GDPR compliance, including checking against do-not-call lists, gives sales leaders peace of mind when running campaigns in Europe.
- Con: Its database is smaller than ZoomInfo's or Apollo's, and its strength in North America, while growing, is still secondary to its European focus.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #4 Lusha · 8.6/9.4
- Best for: Individual sales reps and small teams who prioritize ease of use and a simple, credit-based pricing model.
- Tel Aviv, Israel · founded 2016 · $$ ($0 to $74/mo/user)
- Lusha excels in simplicity and user experience, making it incredibly easy for individual reps to find contact information quickly. Its straightforward credit system and highly-rated browser extension allow users to get value almost instantly, without the complexity of larger platforms.
- Pro: The browser extension is one of the fastest and most intuitive in the market, allowing reps to pull contact data from LinkedIn profiles in a single click.
- Con: The platform lacks advanced features like deep intent data or org charts, and unused credits do not roll over on most plans, which can feel wasteful.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #5 6sense · 8.4/9.4
- Best for: Enterprise marketing and sales teams running sophisticated account-based marketing (ABM) programs.
- San Francisco, CA, USA · founded 2013 · $$$$ (Custom quotes, from $30k/yr)
- 6sense is ranked for its market-leading predictive intelligence and intent data, which are core to modern ABM strategies. While it's more than just a contact database, its ability to identify and prioritize in-market accounts based on anonymous web traffic and keyword research is a critical data function for enterprise GTM teams.
- Pro: Its ability to uncover 'dark funnel' intent signals, identifying anonymous buyers showing interest before they ever fill out a form, is a significant competitive advantage.
- Con: The platform is complex, requires significant investment and internal resources to manage effectively, and is priced exclusively for the high end of the market.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #6 Uplead · 8.2/9.4
- Best for: Teams that demand the highest email accuracy and are willing to pay a premium for a 95% accuracy guarantee.
- Walnut, CA, USA · founded 2017 · $$$ ($74 to $299/mo/user)
- Uplead earns its place by backing its data with a 95% accuracy guarantee, a bold promise in an industry where data decay is constant. Its real-time email verification process means users burn fewer credits on bounced emails, making it a reliable choice for teams focused on email-heavy outbound campaigns.
- Pro: The platform refunds credits for any email that bounces, directly aligning its business model with the success of the customer's campaigns.
- Con: The overall database size is smaller than top competitors, and it lacks the sophisticated intent data or workflow automation features of larger platforms.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #7 Clearbit · 8/9.4
- Best for: Marketing teams focused on data enrichment for inbound leads, website personalization, and form optimization.
- San Francisco, CA, USA · founded 2015 · $$$$ (Custom quotes, from $12k/yr)
- Clearbit (now part of HubSpot) specializes in real-time data enrichment, making it a powerful tool for marketing operations. Its APIs are designed to enrich inbound leads from forms, de-anonymize website traffic, and power personalization, focusing more on inbound marketing intelligence than pure outbound prospecting.
- Pro: The 'Reveal' feature, which identifies anonymous companies visiting your website, is a powerful tool for both marketing and sales to prioritize outreach.
- Con: As a pure outbound prospecting database, it's less extensive than competitors, and its acquisition by HubSpot may narrow its focus to that ecosystem.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #8 SalesIntel · 7.9/9.4
- Best for: Teams that need human-verified data and research-on-demand for niche industries or specific accounts.
- Washington, D.C., USA · founded 2018 · $$$ (Custom quotes, from $5k/yr)
- SalesIntel differentiates itself with a commitment to human verification, re-verifying its entire database every 90 days. This process results in highly accurate data, and their unique 'Research-on-Demand' service allows clients to request specific contact or account data that isn't already in the platform.
- Pro: The Research-on-Demand feature acts like a personal research assistant, filling data gaps for high-priority accounts within 2-4 hours.
- Con: The size of its pre-verified database is smaller than the automated giants, and the platform's user interface is less modern than some competitors.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #9 Seamless.AI · 7.7/9.4
- Best for: Sales teams focused on high-volume prospecting who need unlimited credits and a fast search engine.
- Columbus, OH, USA · founded 2018 · $$ ($0 to $149/mo/user)
- Seamless.AI is built for speed and volume, offering 'unlimited' credits on its paid plans, which appeals to high-output SDR teams. Its real-time search engine scours the web to find contact information, positioning itself as a search engine rather than a static database.
- Pro: The 'unlimited' credit model (subject to fair use) removes the anxiety of credit limits, encouraging reps to build large, ambitious prospect lists.
- Con: Data accuracy can be inconsistent compared to human-verified or curated databases, and the 'unlimited' promise comes with fair use policy limitations.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #10 RocketReach · 7.5/9.4
- Best for: Recruiters and sales reps who need a massive database with a mix of personal and professional email addresses.
- Bellevue, WA, USA · founded 2016 · $$ ($39 to $249/mo)
- RocketReach provides access to a huge number of contacts (over 700 million), making it a useful tool for finding specific, hard-to-reach individuals. Its strength lies in the breadth of its data, which often includes personal emails, making it popular with recruiters as well as sales professionals.
- Pro: The sheer scale of the database means you can often find contacts here that are not listed in more curated, business-focused platforms.
- Con: The platform lacks advanced filtering, intent data, and the data accuracy for professional emails can be lower than more specialized B2B providers.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

### #11 [WILDCARD] Clay · 7.3/9.4
- Best for: Technical sales and growth teams who want to build automated, multi-source enrichment and outbound workflows.
- New York, NY, USA · founded 2020 · $$ ($149 to $800/mo)
- Clay is the wildcard because it's not a database itself, but a powerful data orchestration platform that connects to dozens of them. It allows users to build 'waterfalls' that chain together multiple data sources (like Clearbit, PeopleDataLabs, and even OpenAI) to find and verify information, representing a new, more flexible approach to prospecting.
- Pro: Its spreadsheet-like interface and deep integrations (over 100) empower non-engineers to build sophisticated data enrichment flows that were previously only possible with custom code.
- Con: It has a steep learning curve, and costs can become unpredictable since you pay for both Clay and the underlying data providers you use in your workflows.
- Risk signals (none, checked 2026-06-18): No material public risk signals as of 2026-06-18.

## FAQ

**What is the best B2B data provider for startups?**

Apollo.io is widely considered the best B2B data provider for startups. It offers a generous free tier, affordable paid plans, and combines a large contact database with sales engagement tools, providing an all-in-one solution for small, budget-conscious teams.

**Are B2B contact databases legal?**

Yes, B2B contact databases are generally legal, but they must comply with data privacy regulations like GDPR in Europe and CCPA in California. Reputable providers take compliance seriously, offering features like do-not-call lists and processing data under legitimate interest for B2B marketing.

**How much do B2B data providers cost?**

Prices vary widely, from free tiers to over $100,000 per year. Per-user plans can range from $49 to $200 per month, like those from Lusha or Uplead. Enterprise platforms like ZoomInfo or 6sense require custom quotes and often start around $15,000 to $30,000 annually for a small team.

**Can I get mobile phone numbers from these providers?**

Yes, most top B2B data providers offer mobile numbers (direct dials). Providers like Cognism and Lusha built their reputations on the quality of their mobile data, which is often harder to source and verify than email addresses.