Best B2B contact databases in 2026: 8 platforms scored across 231 features

B2B contact databases provide verified emails, phone numbers, and company data for outbound sales teams to fill their pipeline.

The number always comes first, and it always will.

The category is defined by one metric above all others: how many contacts are in the database.

320M contacts. 275M profiles. 1.7 billion records.

Every B2B contact database opens with the biggest figure it can defend, because size ends the comparison before harder questions get asked.

So teams buy the biggest database. They load their sequences. They hit send.

Then one in four emails bounces. Sender domains get flagged.

Sequences built on hours of research land in spam folders.

On credit-based platforms, every bounce is money gone.

We scored 8 B2B contact databases across a 231-point feature framework to find out which ones hold up once you move past the headline number.

Amplemarket scored 29 out of 30 in Data & Lead Generation, the highest of any platform we tested.

Rated 4.6/5 from 571+ reviews on G2 and named a Gartner Cool Vendor in Generative AI for Sales, it delivers 200M+ contacts with bounce rates under 3%, 70M+ records refreshed weekly, and 96.5% phone accuracy.

All data features (email finding, phone numbers, firmographics, technographics, real-time validation, natural language search, and bulk enrichment) are included in a single subscription with no credits and no add-ons.

At $3,200/user/yr (25 users, annual + multi-year commitment), Amplemarket also includes AI-powered engagement, 100+ intent signals, and a full deliverability suite.

The platforms with the largest raw databases (ZoomInfo at 320M+, Apollo at 275M+, Seamless.AI at 1.7B+ claimed) consistently report the worst bounce rates (15-30%) in real-world usage.

The biggest database is not the best database. The most accurate one is.

Here is what we found.

Why database size is the wrong metric

Every B2B contact database leads with a number: 320M contacts. 275M profiles. 1.7 billion records.

These numbers end comparisons before they start.

But database size obscures the only thing that matters: whether the contacts work when you use them.

The bounce rate reality

Seamless.AI claims 1.7 billion contacts, roughly 20% of the world's population. Users report 20-30% bounce.

Apollo claims 275M+ but applying its own "Verified Emails" filter drops the database to 96M, a 65% reduction.

ZoomInfo's 320M+ is the largest verified database with strong firmographics, but users consistently report 15%+ bounce rates on real campaigns.

Why bounce rates matter more than database size

A 15% bounce rate means more than 15% of your emails failing.

It triggers a cascade:

• ‍Sender reputation damage (ESPs flag bouncing domains, landing your entire outbox in spam)
• Wasted pipeline (every bounce represents research and personalization effort that produced nothing)
• Credit waste (on platforms like Apollo and Lusha, every bounce burns credits you paid for)
• Compounding decay (B2B data decays 2-3% per month) 

Weekly refresh keeps this in check. Monthly or quarterly refresh does not.

A 200M-contact database with <3% bounce rates outperforms a 1.7B-contact database with 25% bounce rates on every metric that matters.

How we tested and platform reviews

We evaluated 8 platforms across a 231-point scoring framework spanning 10 categories, with each sub-feature scored 0-3 (0 = not offered, 3 = full native capability).

Data was gathered in February 2026 from hands-on testing, official documentation, G2 reviews (40,000+ across all platforms), Trustpilot, Reddit, and Vendr contract data.

This article focuses on the Data & Lead Generation category (30 points), covering database size, email/phone accuracy, firmographics, technographics, validation, search, and enrichment, while including overall scores for context.

TL;DR rankings table

Seamless.AI was evaluated separately via documentation and reviews, not included in the 231-point scoring.

1. Amplemarket – Most accurate B2B contact database

Best for: Teams that need high-accuracy contact data bundled with AI engagement, intent signals, and deliverability in a single platform.

‍Primary user: Sellers (SDRs, BDRs, AEs) who prospect and book meetings directly, plus RevOps teams who configure data workflows and integrations.

Data & Lead Gen score: 29/30 | Overall score: 219/231 (94.8%)

Database and data quality:

• 200M+ contacts with a verified bounce rate under 3%, the lowest of any platform we tested
• 70M+ records refreshed weekly, keeping data decay in check (vs. monthly or quarterly refresh cycles at competitors)
• Email finding and verification: 3/3. Full native capability with real-time validation before sends
• Phone number database: 3/3. 96.5% phone accuracy across markets
• Company data and firmographics: 3/3. Complete firmographic profiles including industry, revenue, employee count, funding history, and technology stack
• Technographic data: 3/3. Native technology detection across 15,000+ technologies
• Real-time email validation: 3/3. Validates every email address at send time, not at export
• Natural language search: 3/3. Describe your ICP in plain English and the AI returns matching contacts (e.g., "VP of Sales at Series B SaaS companies in the Nordics with 50-200 employees")
• Bulk enrichment: 3/3. Enrich entire CRM databases or CSV uploads without per-record credit charges

What makes it different:

The data is accurate, and that difference compounds.

A 3% bounce rate versus 20% is a gap that separates building pipeline from destroying your sender reputation.

Amplemarket achieves these numbers through a proprietary waterfall enrichment system.

Rather than relying on a single data source, each contact is verified against multiple curated providers in sequence, maximizing match rates while filtering out stale or incorrect records.

The provider mix is tested and reviewed monthly by Amplemarket's data team, ensuring the waterfall stays optimized as data sources evolve.

The weekly refresh of 70M+ records keeps the database current as people change jobs and companies evolve. And the database is embedded in a complete outbound platform.

Find contacts, build sequences, send across 7 channels, monitor deliverability, and track intent signals in one subscription.

The platform also connects directly to tools like ChatGPT and Claude through MCP.

No credits, no per-record charges, no hidden add-ons.

Pros:

• Lowest verified bounce rate of any platform tested (<3% as confirmed by Wasabi and Sendoso)
• All data features included, no credits, no per-record charges, no add-ons
• Weekly data refresh (70M+ records) vs. monthly or quarterly at competitors
• Natural language search: describe your ICP in plain English instead of boolean filters
• 96.5% phone accuracy across global markets
• Embedded in a complete platform (AI, engagement, signals, deliverability)

Cons:

• Raw database size (200M+) is smaller than ZoomInfo (320M+) and Apollo (275M+)
• No free tier, but offers a 14-day free trial
• No revenue forecasting or deal management

Pricing:

• Pricing varies by team size: $3,240/user/yr (5 users, Startup with annual billing), $3,200/user/yr (25+ users, annual + multi-year commitment), $2,880/user/yr (50+ users, annual + multi-year commitment)
• Startup tier: $3,600/user/yr
• No implementation fees. No credit system. No hidden add-ons. Everything included.

G2 rating: 4.6/5 (571+ reviews)

What real users say:

"We switched to Amplemarket from Lusha mainly for better data quality."

Povilas Andrijauskas, Neurons (G2 Review, Verified Active User)

"Amplemarket's data is pretty much the best data that I’ve seen on the market."

Alona Lazarenko, Star (Read the full case study)

“Data quality overall is better than the incumbents we had in place.”

Thanbir Moktadir, LILT (Read the full case study)

"The data quality is noticeably better than what we had with ZoomInfo. Our bounce rates dropped from around 12% to under 3% after switching."

G2 reviewer

Bottom line: Amplemarket has the most accurate B2B contact database we tested.

The <3% bounce rate, 96.5% phone accuracy, and weekly refresh mean the data works when you use it, and it comes bundled with AI, engagement, signals, and deliverability at a lower total cost than assembling those from separate vendors.

2. ZoomInfo: Largest raw database, enterprise standard

Best for: Large enterprises that need the biggest B2B database, deep firmographic and technographic data, and strong Fortune 500 brand recognition.

‍Primary user: Enterprise RevOps teams who configure data feeds, plus SDRs and AEs who use the data for research.

Data & Lead Gen score: 24/30 | Overall score: 107/231 (46.3%)

Database and data quality:

• 320M+ contacts and 100M+ companies, the largest raw database in B2B
• Strong firmographic and technographic data
• 12,600+ G2 reviews, the largest social proof base in the category
• Chorus.ai conversation intelligence (call recording, transcription, deal intelligence)

Pros:

• Largest verified contact database in B2B (320M+)
• Deep firmographic and technographic data that procurement teams trust
• The default choice for enterprise sales organizations. Brand recognition smooths internal approvals
• Chorus.ai adds conversation intelligence that no other data platform offers natively

Cons:

• User-reported bounce rates of 15%+ on real campaigns. One G2 reviewer noted pulling 5,000 contacts and seeing 15% bounce on the first send
• Trustpilot rating of 1.8/5 reveals significant dissatisfaction with billing and cancellation practices
• Requires a 60-day written cancellation notice. Users report being locked into auto-renewals with 15% price increases
• International data requires the Data Passport add-on ($5,000-$15,000), making global prospecting significantly more expensive
• Quote-based, opaque pricing makes cost comparison difficult
• Zero deliverability tools (0/21) and zero contact-level intent signals

Pricing:

• Starting at $15,000+/yr for 3 seats (data only, 3-seat minimum)
• Full enterprise deployments: $35,000-$45,000+/yr
• Data Passport (international data): $5,000-$15,000/yr add-on
• Opaque, quote-based pricing with annual contracts

G2 rating: 4.5/5 (12,600+ reviews) | Trustpilot: 1.8/5

What real users say:

"ZoomInfo is the gold standard for B2B data. When I need to build a list of decision-makers at Fortune 500 companies, no other tool gets me there as fast."

G2 reviewer

"The 60-day written notice requirement is buried in the contract. Most SaaS products let you cancel anytime. ZoomInfo operates like a gym membership from the early 2000s."

G2 reviewer

Bottom line: ZoomInfo has the largest B2B contact database and the strongest brand.

For enterprises that prioritize raw database size, deep firmographics, and Chorus.ai, it remains the default.

But the 15%+ bounce rates, $15K+ starting price, Data Passport surcharges, and aggressive renewals make it hard to justify for mid-market teams.

3. Apollo: Largest free tier, budget starting point

Best for: Early-stage startups and individual contributors who need a free starting point and are willing to accept lower data accuracy.

‍Primary user: SMB SDRs, founders, and early-stage teams who need a free or low-cost starting point.

Data & Lead Gen score: 21/30 | Overall score: 98/231 (42.4%)

Database and data quality:

• 275M+ contacts claimed, but only 96M verified when applying Apollo's own "Verified Emails" filter, a 65% reduction
• Free tier: 100 credits/month for basic prospecting
• Strong search filters and firmographic data
• Built-in email sequences and basic dialer (the only budget platform combining data and engagement)
• Highest G2 rating in the category at 4.8/5 (9,344+ reviews)

Pros:

• Most affordable entry point in B2B data with a genuine free tier (100 credits/mo)
• Paid plans start at $588/user/yr, the lowest among platforms with both data and engagement
• Highest G2 rating (4.8/5) with the second-largest review base (9,344+)
• Useful search filters and firmographic data for basic prospecting

Cons:

• Data accuracy is a persistent problem. Users report 20-30% bounce rates on real campaigns. One G2 reviewer described accuracy "hovering at 65-70% rather than the advertised 91%"
• Two data breaches (2018, with 125.9M records exposed, and 2021, with 11M records exposed) raise legitimate security concerns
• Email warmup was discontinued in 2024. Users report inbox placement dropping from 65% in month one to 23% by month six
• Trustpilot rating of 1.9/5 (754+ reviews) driven by aggressive billing. Users describe "predatory billing practices" and "hidden costs that triple initial pricing"
• CEO transition in February 2026 adds uncertainty to product direction

Pricing:

• Free: 100 credits/mo
• Basic: $588/user/yr ($49/user/mo)
• Professional: $1,188/user/yr ($99/user/mo)
• Organization: $1,428/user/yr ($119/user/mo)
• Credit overages: $0.20+/credit minimum with 50% markup over plan rates

G2 rating: 4.8/5 (9,344+ reviews) | Trustpilot: 1.9/5 (754+ reviews)

What real users say:

"Great value for SMB teams. Free tier lets us test before committing."

G2 reviewer

"Bounce rate was much higher for Apollo."

Mariana Guerci, Albato (Read the full case study)

In Apollo, we couldn’t segment well. We were looking for B2C companies, but the filters were hard to get right.

Deepak Singla, Fini (Read the full case study)

"The bounce rate is a problem – anyone who has used Apollo email data will tell you."

Reddit, r/sales

Bottom line: Apollo is the most affordable B2B contact database with built-in engagement. The free tier and $588/user/yr entry are genuinely attractive.

But the 20-30% bounce rates, two data breaches, and aggressive billing (Trustpilot 1.9/5) make it a risky choice at scale.

Teams outgrowing 100 credits/month should compare actual cost (with overages and bounce waste) against more accurate alternatives.

4. Cognism: Best phone data for European contacts

Best for: Teams running phone-heavy outbound campaigns targeting EMEA prospects who need verified mobile numbers.

‍Primary user: EMEA-focused SDRs and AEs who rely on phone as their primary outreach channel.

Data & Lead Gen score: 23/30 | Overall score: 75/231 (32.5%)

Database and data quality:

• 440M+ claimed profiles across global markets
• Diamond Data: 10M+ phone-verified mobile numbers with 98% accuracy and a reported 20% connection rate
• Strong EMEA data coverage, consistently ranked among the best for European contacts
• ISO 27001, ISO 27701, and SOC2 certifications
• Bombora-powered account-level intent data (available as add-on)

Pros:

• Diamond Data is the gold standard for European phone numbers. No other platform matches the verification depth for EMEA mobiles
• 98% phone accuracy with a 20% connect rate is a real differentiator for phone-first teams
• Strong GDPR compliance posture with multiple ISO certifications
• High G2 rating (4.6/5) with praise for the Chrome extension and support

Cons:

• Outside of Europe, data quality drops sharply. Independent testing revealed 62.5% of US mobile numbers, direct dials, and landlines were incomplete
• Zero engagement capabilities (0/36 in Multichannel Engagement). No email sequences, no dialer, no LinkedIn automation. Teams must purchase Outreach or Salesloft separately
• Expensive for a data-only tool. Starting at $15,000+/yr platform fee, with Diamond Data and implementation adding significant cost. One user budgeted $15K and was quoted $31K after add-ons
• Diamond Data covers 10M+ phone-verified contacts. Impressive for EMEA, but a small fraction of the 440M+ claimed database

Pricing:

• Starting at $15,000+/yr (annual commitment required)
• Diamond Data: included in higher tiers, add-on for lower tiers
• Bombora intent: $600+/yr add-on (account-level only)
• International coverage (outside EMEA) requires careful evaluation. US data is significantly weaker

G2 rating: 4.6/5 (1,201 reviews)

What real users say:

"2-3x higher connect rates with Diamond-verified numbers."

G2 reviewer

"Coverage drops significantly outside Europe."

G2 reviewer

Bottom line: If your team calls European prospects, Cognism's Diamond Data is unmatched. 98% phone accuracy with a 20% connect rate.

But the 62.5% incomplete rate outside EMEA, $15K+ starting price for a data-only tool, and zero engagement or deliverability features mean most teams need 3-4 additional purchases for a complete stack.

5. Seamless.AI: Largest claimed database, tricky cancellation reputation

Best for: US-based teams that need high-volume contact lookups and do not require engagement, deliverability, or easy contract management.

‍Primary user: US-based high-volume SDR teams focused on building large contact lists quickly.

Note: Seamless.AI was evaluated separately and not included in the 231-point scoring framework.

Database and data quality:

• 1.7B+ claimed contacts and 150M+ companies, the largest claimed database
• Real-time AI verification engine claiming 98% accuracy
• Chrome extension for LinkedIn lookups, Autopilot for automated list building

Pros:

• Massive claimed database for high-volume US prospecting
• Real-time verification can surface fresher US results
• G2: 4.4/5 with 5,277+ reviews

Cons:

• Tricky cancellation reputation in B2B SaaS. No cancel button. 60-day written notice. Users sent to collections. BBB complaints describe $18,000 auto-renewals despite cancellation requests
• Users report 20-30% email bounce and ~40% phone connection, far from the claimed 98%
• Real-world cost 40-60% higher than base license with overages
• Purely a data lookup tool. No engagement, deliverability, or AI
• International data "practically unusable" per users
• Trustpilot: 1.5/5, the most extreme G2-to-Trustpilot gap in the category

Pricing:

• Free: 50 lifetime credits
• Basic: ~$147/user/mo (annual contract required)
• Pro: ~$147-$299/user/mo (quote-based)
• Enterprise: $20,000-$100,000+/yr (quote-based)
• All paid plans require annual contracts. No monthly option

G2 rating: 4.4/5 (5,277+ reviews) | Trustpilot: 1.5/5 (~280+ reviews)

What real users say:

"About 30% of the emails I found bounced. For a tool that claims 98% accuracy, that's pretty bad."

Trustpilot reviewer

"They auto-renewed my annual contract without proper notice and refused to cancel or refund despite multiple attempts."

BBB complaint

Bottom line: Seamless.AI claims the largest number in B2B data (1.7B), but the gap between that claim and the 20-30% user-reported bounce rates is the largest credibility gap in the category.

The cancellation practices are alarming. If you sign up, read every line of the contract and set calendar reminders 90 days before renewal.

6. Lusha: Simplest chrome extension for quick lookups

Best for: Individual contributors who need a fast, simple way to grab a contact's email from a LinkedIn profile.

‍Primary user: Individual reps who need quick, ad-hoc contact lookups from LinkedIn.

Data & Lead Gen score: 15/30 | Overall score: 58/231 (25.1%)

Database and data quality:

• Chrome extension with one-click contact reveal from LinkedIn
• Email accuracy rates between 85-90% for North American contacts
• Simple, clean UI that requires zero configuration
• Free tier: 40 credits/month
• CRM and API access gated behind the Scale plan (custom pricing)

Pros:

• Fastest time-to-value of any tool on this list. Install the extension and start prospecting in minutes
• Simple, intuitive UX consistently praised as the easiest in the category
• Decent email accuracy for North American SMB and mid-market contacts
• Free tier allows basic evaluation without commitment

Cons:

• Credit system is the top complaint. Phone number reveals cost 5-10x more credits than emails, causing teams to routinely overrun budgets by 60-80%
• Trustpilot score of 1.3/5 (712 reviews), the lowest of any platform in this comparison, driven by GDPR and privacy complaints
• It is a data lookup tool, not a sales platform. No email sequences, no dialer, no LinkedIn automation, no deliverability tools, no AI
• CRM integration and API access are gated behind the Scale plan (custom pricing). Basic plans cannot sync data to Salesforce or HubSpot
• Coverage drops significantly outside North America

Pricing:

• Free: 40 credits/mo
• Pro: $264/user/yr ($22/user/mo)
• Premium: $624/user/yr ($52/user/mo)
• Scale: Custom pricing (required for CRM integration and API access)
• Phone number reveals: 5-10 credits each (vs. 1 credit for email)
• Budget overrun of 60-80% reported by teams due to phone credit consumption

G2 rating: 4.3/5 (1,611 reviews) | Trustpilot: 1.3/5 (712 reviews)

What real users say:

"Clean UI, simple Chrome extension, quick LinkedIn lookups."

G2 reviewer

"Lusha is a data tool, not an SDR platform – it tells you WHO to contact but not WHEN, WHY, or WHAT TO SAY."

G2 reviewer

Bottom line: Lusha is the simplest contact lookup available.

The credit system makes phone numbers expensive, CRM sync requires the enterprise plan, and you need 3-4 additional tools for real outbound.

7. Lead411: US-focused database with intent data included

Best for: US-focused teams that want Bombora intent data bundled at a mid-range price.

‍Primary user: US-focused SDR teams who want intent signals bundled with data.

Database and data quality:

• Smaller database concentrated on US companies and contacts
• Bombora intent data included, not an add-on (unusual at this price point)
• Growth intent signals: hiring trends, funding events, technology adoption
• Verified email and phone data with good accuracy reports from users

Pros:

• Bombora intent included at ~$99/user/mo. Competitors charge $5K-$15K/yr extra
• Good accuracy for US SMB and mid-market contacts
• Transparent pricing, no aggressive cancellation practices

Cons:

• Smaller database, limited for high-volume or international prospecting
• No AI capabilities, no deliverability tools, limited engagement
• Less well-known brand complicates enterprise procurement

Pricing: ~$99/user/mo (~$1,188/user/yr), intent included | G2: 4.5/5

Bottom line: Solid mid-range choice for US-focused teams that value included intent data.

The trade-off is a smaller database and limited international coverage.

8. UpLead: Simple database with real-time cverification

Best for: Small teams that want a straightforward contact database with real-time email verification before download.Primary user: SMB teams and marketers who need a simple, verified contact database.

Database and data quality:

• 160M+ contacts with a claimed 95% data accuracy rate
• Real-time email verification before download. Contacts verified at export, not at last refresh
• Clean UI with 50+ search filters including technographic data

Pros:

• Verify-before-download means you only spend credits on validated contacts
• Simple interface, minimal learning curve
• 95% accuracy claim is closer to user-reported reality than competitors
• Transparent credit-based pricing

Cons:

• Smaller database (160M+) limits coverage for niche and international markets
• Credit-based model means costs scale linearly. No unlimited access
• No engagement, deliverability, or AI features

Pricing: $99-$199/mo (170-400 credits) | G2: 4.7/5

Bottom line: UpLead is a clean, honest database for small teams.

The verify-before-download approach reduces bounce rates. But the 160M+ database is smaller than competitors, credits limit scale, and there are no engagement or AI features. Best as a supplementary data source or starting point.

Data quality comparison matrix

This is the comparison that matters most. Database size tells you how many contacts are available. Data quality tells you how many actually work.

Email accuracy

The gap between claimed and reported accuracy is telling. Seamless.AI claims 98% but users report 20-30% bounce. Apollo claims 91% but users report 65-70% real accuracy.

Amplemarket's <3% bounce rate is the most consistent with its claims.

Phone data accuracy

Two platforms stand out for phone data. Cognism's Diamond Data offers 98% accuracy with a 20% connect rate for EMEA.

Amplemarket offers 96.5% phone accuracy globally with no per-credit charge, the strongest choice for teams prospecting across both continents.

Data refresh frequency

B2B data decays at 2-3% per month. A quarterly refresh lets 6-9% of records go stale between updates. Amplemarket's weekly refresh of 70M+ records is the most aggressive cycle in the category.

What none of them tell you

The credit trap

Five of the eight platforms use credit-based pricing: Apollo, Lusha, Seamless.AI, UpLead, and Clay.

Credits sound reasonable in a pricing table. In practice, they create three problems: phone numbers cost 5-10x more (Lusha users report 60-80% budget overruns), bounced contacts waste credits (a 25% bounce rate means purchasing 33% more credits than your actual volume requires), and overages carry markups (50% at Clay, $0.20+ minimum at Apollo).

The advertised per-contact cost applies only if you never exceed your plan. Most teams do.

Amplemarket includes all data in a flat subscription with no credits and no per-record charges: $3,200/user/yr (25 users, annual + multi-year commitment), everything included.

The "biggest database" marketing trap

Database size is the easiest number to inflate. Apollo claims 275M+ but only 96M pass its own verification filter. Cognism claims 440M+ "profiles," which may include records with only a name and company, no email or phone.

Stale records from people who changed jobs years ago still count toward the headline. A single person with two email domains and a LinkedIn profile can appear as multiple "contacts."

The question is not "how many contacts does the database have?" It is "how many will actually connect me with the right person?"

The integration tax

Platforms that only provide data (ZoomInfo, Cognism, Lusha, Seamless.AI, UpLead, Lead411) require separate tools for engagement, deliverability, LinkedIn automation, and intent data.

Each integration introduces data loss at handoffs (context from signals does not survive export), multiple contracts with separate renewal dates, and maintenance overhead when APIs change or syncs break.

A ZoomInfo-centered stack at 25 users involves 4-6 separate vendor contracts. Amplemarket eliminates this by including data, engagement, deliverability, AI, and signals in a single platform with one contract and zero data handoffs.

The bottom line

Database size means nothing if contacts bounce. Amplemarket delivers fewer contacts that actually convert, backed by <3% bounce rates.

The B2B contact database market in 2026 is dominated by a misleading metric: database size.

Every vendor leads with the biggest number it can defend because it ends the conversation before the harder questions get asked.

We scored 8 platforms across 231 features.

The data tells a clear story:

Amplemarket (29/30 Data & Lead Gen, 219/231 overall) has the most accurate B2B contact database we tested. The <3% bounce rate, 96.5% phone accuracy, and 70M+ weekly record refreshes mean the data works when you use it. At $3,200/user/yr (25 users, annual + multi-year commitment) with no credits and no add-ons, and with AI, engagement, signals, and deliverability included, it is the best value for teams that need a complete outbound platform.

ZoomInfo (24/30 Data & Lead Gen, 107/231 overall) has the largest database and the strongest brand. It is the right choice for enterprises that prioritize raw database size, deep firmographics, and Chorus.ai conversation intelligence, and can absorb the $15K+ starting price and 15%+ bounce rates.

Cognism (23/30 Data & Lead Gen, 75/231 overall) owns the European phone data niche. Diamond Data's 98% accuracy and 20% connect rate are unmatched for EMEA. But outside Europe, data quality drops sharply.

Apollo (21/30 Data & Lead Gen, 98/231 overall) is the best budget starting point. The free tier and $588/user/yr entry price are real advantages. The 20-30% bounce rates is a real risk.

For every other platform, the trade-offs are more significant: each serves a narrow use case but requires substantial additional investment for a complete stack.

Stop optimizing for database size. Start optimizing for data accuracy.

A 200M-contact database with <3% bounce rates will generate more pipeline, protect your sender reputation, and cost less in wasted effort than a 1.7B-contact database where one in four emails bounces.

Ready to see the data quality bifference?

Amplemarket scored 29/30 in Data & Lead Generation and 219/231 overall, the highest of any platform we tested.

See how our data accuracy compares to your current provider with a personalized data quality audit.