Clearbit
StackAdapt
| Feature | Clearbit | StackAdapt |
|---|---|---|
| Pricing | Free only | Contact sales |
| Free Plan | ✓ Yes | ✗ No |
| Rating | 4.3 / 5 | 4.4 / 5 |
| Best For | b2b-marketers, growth-teams, sales-operations, product-led-growth | agencies, brand-marketers, media-planners, performance-marketers |
| Founded | 2014 | 2014 |
| Data Enrichment | ✓ | ✗ |
| Reveal Visitors | ✓ | ✗ |
| Lead Scoring | ✓ | ✗ |
| Form Shortening | ✓ | ✗ |
| Prospecting | ✓ | ✗ |
| Api | ✓ | ✗ |
| Integrations | ✓ | ✗ |
| Native Ads | ✗ | ✓ |
| Display Ads | ✗ | ✓ |
| Video Ctv | ✗ | ✓ |
| Audience Targeting | ✗ | ✓ |
| Contextual Targeting | ✗ | ✓ |
| Creative Studio | ✗ | ✓ |
✓ Clearbit Pros
- Real-time enrichment with 100+ data attributes
- Excellent API for programmatic data access
- Free weekly visitor reports for any website
- Deep HubSpot integration (now owned by HubSpot)
✗ Clearbit Cons
- Full platform pricing is expensive
- Data coverage weaker outside US/Western markets
- Future roadmap uncertain after HubSpot acquisition
✓ StackAdapt Pros
- Excellent native ad inventory
- Strong machine learning
- Good customer support
- Multi-channel reach
✗ StackAdapt Cons
- Minimum spend requirements
- Learning curve for platform
- Reporting could be more granular
The Verdict
Clearbit is built for b2b marketers and growth teams, with a focus on data-enrichment and reveal-visitors. StackAdapt targets agencies and brand marketers and leads with native-ads and display-ads.
Both tools use custom enterprise pricing — you'll need to contact sales for a quote, which makes direct cost comparison difficult.
Clearbit has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. StackAdapt requires a paid subscription from day one.
Feature-wise, Clearbit offers broader built-in capabilities (7 features vs 6), while StackAdapt takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.