Top 10 B2B Data API Providers Compared (2026)
Comprehensive comparison of the best B2B data API providers. Features, pricing, pros/cons, and recommendations for different use cases.
How We Evaluated These Providers
We evaluated each provider based on:
- Data Quality: Accuracy, completeness, and freshness
- Coverage: Number of profiles and geographic reach
- API Performance: Response times and uptime
- Pricing: Cost per enrichment and value for money
- Features: Available endpoints and data types
- Developer Experience: Documentation and ease of integration
- Support: Response times and quality
- Compliance: GDPR, CCPA, and legal safeguards
1. Netrows
Best For: Startups and growing companies looking for affordable, real-time data
Starting Price: $49/month
Free Trial: 100 credits
⭐ Our Top Pick for Value
Pros
- 10x cheaper than competitors ($49 vs $499/month)
- Real-time data (not cached)
- Fast API response times (<2 seconds)
- 74+ API endpoints (professional data + X/Twitter)
- 99.9% uptime SLA
- Month-to-month pricing, no contracts
- Excellent documentation
- Global coverage
Cons
- Newer platform (less brand recognition)
- Smaller customer base than established players
Best Use Cases
- Lead enrichment for sales teams
- CRM data enhancement
- Recruitment and talent sourcing
- Market research
2. Clearbit
Best For: Enterprise companies with large budgets
Starting Price: $499/month
Free Trial: Limited demo only
Pros
- Established brand with large customer base
- Pre-built integrations (Salesforce, HubSpot)
- Technographic data (tech stack detection)
- Good US coverage
Cons
- Very expensive ($499-$2,999/month)
- Cached data (3-6 months old)
- Slow response times (~5 seconds)
- Annual contracts required
- Complex onboarding process
3. ZoomInfo
Best For: Large enterprises with dedicated sales teams
Starting Price: $14,995/year
Free Trial: Demo only
Pros
- Massive database (100M+ contacts)
- Intent data and buying signals
- Sales intelligence features
- Direct dial phone numbers
Cons
- Extremely expensive ($15k-$50k/year)
- Complex platform with steep learning curve
- Requires annual commitment
- Overkill for small teams
4. Apollo.io
Best For: Sales teams needing prospecting + enrichment
Starting Price: $49/month (limited features)
Free Trial: Free plan available
Pros
- All-in-one sales platform
- Email sequencing included
- Good for prospecting
- Free plan available
Cons
- Data quality inconsistent
- Limited API functionality
- Focused on sales, not pure data API
- Email deliverability issues reported
5. Hunter.io
Best For: Email finding and verification
Starting Price: $49/month
Free Trial: 25 searches/month
Pros
- Excellent email finding
- Email verification included
- Simple, focused tool
- Good API documentation
Cons
- Limited to email data
- No company or professional data
- Not suitable for full enrichment
6. Lusha
Best For: Contact information enrichment
Starting Price: $29/month
Free Trial: 5 credits/month
Pros
- Good contact data coverage
- Chrome extension available
- Direct dial numbers
- Easy to use
Cons
- Limited API functionality
- Focused on contact info, not full profiles
- Data accuracy varies
- Credit system can be expensive
7. Cognism
Best For: European market data
Starting Price: Custom pricing
Free Trial: Demo only
Pros
- Strong European coverage
- GDPR compliant
- Intent data included
- Good for international teams
Cons
- Expensive (similar to ZoomInfo)
- Complex pricing
- Requires sales calls
- Limited US coverage
8. Snov.io
Best For: Budget-conscious small teams
Starting Price: $39/month
Free Trial: 50 credits
Pros
- Affordable pricing
- Email drip campaigns included
- Good for small teams
- Simple interface
Cons
- Lower data quality
- Limited API features
- Smaller database
- Basic documentation
9. LeadIQ
Best For: Sales teams using Salesforce
Starting Price: $75/month
Free Trial: 14 days
Pros
- Good Salesforce integration
- Chrome extension
- Contact tracking
- Job change alerts
Cons
- Limited API access
- Focused on sales workflow, not pure data
- Smaller database
- Higher pricing for API access
10. RocketReach
Best For: Recruitment and talent sourcing
Starting Price: $53/month
Free Trial: 5 lookups
Pros
- Large database (700M+ profiles)
- Good for recruitment
- Email and phone numbers
- Chrome extension
Cons
- Data accuracy inconsistent
- Limited API functionality
- Credit system expensive at scale
- UI-focused, not API-first
Pricing Comparison Table
| Provider | Starting Price | Free Trial | Contract |
|---|---|---|---|
| Netrows | $49/mo | 100 credits | Monthly |
| Clearbit | $499/mo | Demo only | Annual |
| ZoomInfo | $14,995/yr | Demo only | Annual |
| Apollo.io | $49/mo | Free plan | Monthly |
| Hunter.io | $49/mo | 25/mo | Monthly |
Which Provider Should You Choose?
For Startups & Small Teams
Recommendation: Netrows
Best value for money with real-time data and comprehensive API. At $49/month, it's affordable for startups while providing enterprise-grade features.
For Growing Companies
Recommendation: Netrows or Apollo.io
Netrows for pure data API needs. Apollo.io if you need an all-in-one sales platform with prospecting features.
For Enterprise
Recommendation: Netrows or ZoomInfo
Netrows for cost-effective, real-time data. ZoomInfo if you need intent data and have a large budget.
For Recruitment
Recommendation: Netrows or RocketReach
Netrows for comprehensive professional data. RocketReach if you primarily need contact information.
For European Markets
Recommendation: Netrows or Cognism
Netrows for global coverage including Europe. Cognism if you exclusively target European markets.
Frequently Asked Questions
Which B2B data provider has the best data quality?
Real-time providers like Netrows offer the best data quality (90-95% accuracy) since data is fetched live. Cached databases like Clearbit and ZoomInfo have 70-80% accuracy due to outdated information.
What's the most affordable B2B data API?
Netrows at $49/month offers the best value. While some providers like Snov.io are cheaper, they have lower data quality and fewer features. Netrows provides enterprise-grade data at startup-friendly pricing.
Do I need an enterprise plan for good data?
No. Modern providers like Netrows offer the same data quality across all plans. The main differences are volume limits and support levels, not data quality.
Can I use multiple providers together?
Yes. Many companies use multiple providers for different use cases. For example, Netrows for professional data + Hunter.io for email verification. This approach maximizes coverage and accuracy.
Which provider has the best API documentation?
Netrows and Clearbit have excellent API documentation. Netrows' docs are more developer-friendly with clear examples and quick-start guides. ZoomInfo's documentation is more complex due to platform complexity.
Are these providers GDPR compliant?
Most reputable providers (Netrows, Clearbit, Cognism) are GDPR compliant. Always verify compliance measures, data processing agreements, and opt-out mechanisms before choosing a provider.
How do I migrate between providers?
Most providers offer similar REST APIs, making migration straightforward. Test the new provider with free credits, map API endpoints, update your code, and gradually shift traffic. Migration typically takes 1-3 days.
Which provider offers the fastest API?
Netrows has the fastest response times (<2 seconds) compared to Clearbit (~5 seconds) and ZoomInfo (~8 seconds). Faster APIs mean better user experience and higher throughput.
Try the Best Value B2B Data API
Netrows offers enterprise-grade B2B data at startup-friendly pricing. Get started with 100 free credits today.