Cold outreach that references a prospect's real job change, company funding, or published content outperforms generic templates. LinkedIn enrichment APIs provide the data layer for personalized sequences. Five ranked for outreach teams.
Top Pick
Apollo leads for LinkedIn enrichment with the largest B2B contact database. Scavio complements by providing search context — what the prospect's company ranks for, Reddit discussions, YouTube presence.
Full Ranking
#1
Apollo.io
Largest B2B contact database with LinkedIn data
Pros
- 250M+ contacts with email + phone
- Job change tracking
- Company enrichment
- Sequence builder included
Cons
- $49/mo minimum
- Credit system can be confusing
- Data freshness varies
#2
Hunter.io
Domain-to-email with verification
Pros
- Email finder + verifier
- Domain search
- Simple API
Cons
- Email only, no phone/LinkedIn profile data
- 25 free/mo is very limited
#3Our Pick
Scavio
Search context enrichment for outreach personalization
Pros
- Google SERP shows prospect company's online presence
- Reddit mentions reveal pain points
- YouTube shows thought leadership content
- Cheaper than Apollo for search data
Cons
- Not a contact database
- No email/phone lookup
- Enrichment, not prospecting
#4
Clearbit (now HubSpot)
Real-time enrichment integrated with CRM
Pros
- Company + person enrichment
- HubSpot native integration
- Firmographic data
Cons
- Pricing opaque since HubSpot acquisition
- Best value with HubSpot CRM
- API access may require enterprise plan
#5
Instantly
Email outreach with built-in lead database
Pros
- B2B lead database included
- Email warmup + sending
- Affordable entry price
Cons
- Lead database smaller than Apollo
- Email-focused, not LinkedIn
Side-by-Side Comparison
| Criteria | Scavio | Runner-up | 3rd Place |
|---|---|---|---|
| Contact database | No (search data) | 250M+ (Apollo) | Domain-email (Hunter) |
| LinkedIn profile data | No | Yes (Apollo) | No (Hunter) |
| Search context | Google + Reddit + YouTube | No | No |
| Monthly cost | $30 for 7K queries | $49 for 900 credits | $49 for 500 lookups |
Why Scavio Wins
- Apollo is the clear winner for LinkedIn enrichment. It has the largest B2B database, job change tracking, and built-in sequences. For contact data, Apollo wins.
- Scavio is not a contact database — it is a search API. Its value in outreach is context enrichment: what does the prospect's company rank for, what are users saying on Reddit, do they have YouTube content you can reference.
- The data-backed outreach stack: Apollo for contact data, Scavio for search context, Instantly or Smartlead for delivery. Each tool does what it is best at.
- Hunter.io is the simplest option for email-only outreach. If all you need is domain-to-email lookup with verification, Hunter is more focused than Apollo.
- Clearbit/HubSpot is the right choice for teams already on HubSpot CRM. The native integration means enrichment data flows directly into contact records without API plumbing.