Best Seamless.AI Alternatives in 2026
The top Seamless.AI alternatives are ZoomInfo, Apollo and Lusha: 15 B2B contact data providers our editors would look at instead of Seamless.AI, in our ranking order.
Seamless.AI: A large-scale prospecting platform with verified contact data, intent signals, and API access. Where it falls short: the free plan includes only 50 credits.
Switching from Seamless.AI? For most b2b contact data providers buyers the best Seamless.AI alternative is ZoomInfo, built for enterprise revenue intelligence. On a budget, LeadIQ starts at $15/user/mo. Apollo has a free plan. People Data Labs offers the most contact database size (3e+09 contacts).
Why People Look for a Seamless.AI Alternative
- The Free plan includes only 50 credits
- Pro and Enterprise pricing requires contact-sales discussions
- Buyer Intent Data is an add-on for Pro users
- Contact database size: 1.3e+09 contacts — up to 3e+09 contacts with People Data Labs
Quick Picks by What You Need
- Best overallZoomInfo9.3
Enterprise revenue intelligence
Visit ZoomInfo - Lowest priceLeadIQ8.3
Paid plans from $15/user/mo
Visit LeadIQ - Best free optionApollo9.2
Has a free plan
Visit Apollo - Most contact database sizePeople Data Labs8.6
3e+09 contacts
Visit People Data Labs
All 15 Seamless.AI Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forEnterprise revenue intelligence
- Better than Seamless.AI:
- Editor score 9.3 vs 8.5
A broad revenue-intelligence platform for teams that need data, signals, and workflows.
- Intent data
- Technographic filters
- Direct-dial data
9.3/10★★★★★Visit ZoomInfo -
Best forAll-around prospecting teams
- Better than Seamless.AI:
- Editor score 9.2 vs 8.5
Apollo combines contact data, prospecting, engagement, enrichment, and CRM workflows.
- Intent data
- Direct-dial data
- API access
9.2/10★★★★★Visit Apollo -
Best forTeams prioritizing intent signals
- Better than Seamless.AI:
- Editor score 9.1 vs 8.5
A broad B2B data platform with especially strong intent and technographic signals.
- Intent data
- Technographic filters
- Direct-dial data
9.1/10★★★★★Visit Lusha -
Best forEstablished company intelligence buyers
- Better than Seamless.AI:
- Editor score 9.0 vs 8.5
A broad B2B intelligence platform with intent, scoring, alerts, and API access.
- Intent data
- Technographic filters
- Direct-dial data
9.0/10★★★★☆Visit D&B Hoovers -
Best forAccount-based teams with predictive scoring
- Better than Seamless.AI:
- Editor score 8.8 vs 8.5
A data-rich choice for account-based teams that need predictive buying signals.
- Intent data
- Technographic filters
- Direct-dial data
8.8/10★★★★☆Visit 6sense -
Best forEnterprise teams needing rich signals
- Better than Seamless.AI:
- Editor score 8.7 vs 8.5
A signal-rich prospecting platform for enterprise teams that can justify sales-led pricing.
- Intent data
- Technographic filters
- Direct-dial data
8.7/10★★★★☆Visit Cognism -
Best forAPI-first data enrichment
- Better than Seamless.AI:
- Contact database size: 3e+09 contacts vs 1.3e+09 contacts
- Editor score 8.6 vs 8.5
A strong API-first choice for teams building enrichment and data pipelines.
- Intent data
- Direct-dial data
- API access
8.6/10★★★★☆Try People Data Labs -
Best forTeams needing human-verified data
A broad contact-data platform for teams that prioritize human-verified prospect information.
- Intent data
- Technographic filters
- Direct-dial data
8.4/10★★★★☆Visit SalesIntel -
Best forSales teams needing workflow capture
LeadIQ combines contact search, browser capture, enrichment, and workflow integrations.
- Intent data
- Technographic filters
- Direct-dial data
8.3/10★★★★☆Visit LeadIQ -
Best forTeams wanting verified intent data
Verified contact data, intent signals, and CRM connectivity for prospecting teams.
- Intent data
- Technographic filters
- Direct-dial data
8.2/10★★★★☆Visit UpLead -
Best forLicensed API data at record scale
A record-scale data provider for API access, enrichment, intent, and technographics.
- Intent data
- Technographic filters
- Direct-dial data
8.1/10★★★★☆Visit Data Axle -
Best forSignal-rich prospecting teams
A signal-rich prospecting platform with verified contacts, intent data, APIs, and CRM integrations.
- Intent data
- Technographic filters
- Direct-dial data
8.0/10★★★★☆Visit Lead411 -
Best forLinkedIn-led sales and recruiting
A LinkedIn-focused contact database with lookup, enrichment, campaigns, and exports.
- Technographic filters
- Direct-dial data
- API access
7.9/10★★★★☆Visit ContactOut -
Best forLarge-scale contact enrichment
A broad contact database with strong enrichment options, but monthly limits narrow some plans.
- Technographic filters
- Direct-dial data
- API access
7.8/10★★★★☆Visit Wiza -
Best forLarge-volume prospecting on a budget
A broad contact-data platform with generous volume tiers and practical prospecting tools.
- Technographic filters
- Direct-dial data
- API access
7.7/10★★★★☆Visit GetProspect
Seamless.AI Alternatives: Common Questions
What is the best alternative to Seamless.AI?
ZoomInfo: #1 in our B2B Contact Data Providers ranking, with an editor score of 9.3 out of 10. A broad revenue-intelligence platform for teams that need data, signals, and workflows.
Is there a free alternative to Seamless.AI?
Yes. Apollo, Lusha, People Data Labs, LeadIQ and ContactOut have a free plan or a free tier (7 of the 15 alternatives on this page).
What is the cheapest paid alternative to Seamless.AI?
Of the alternatives here that publish a price, LeadIQ starts lowest, at $15/user/mo.
Why do people look for Seamless.AI alternatives?
The Free plan includes only 50 credits; Pro and Enterprise pricing requires contact-sales discussions; Buyer Intent Data is an add-on for Pro users.
Which Seamless.AI alternative has the most contact database size?
People Data Labs, with 3e+09 contacts.
How do I switch from Seamless.AI?
Export your data from Seamless.AI (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel Seamless.AI.
How to Switch from Seamless.AI
- Export your data from Seamless.AI (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel Seamless.AI.
Seamless.AI vs Each Alternative
| # | Tool | Free plan | Paid from | Contact database size | Direct-dial data | Intent data | Technographic filters | Score |
|---|---|---|---|---|---|---|---|---|
| 8 | Seamless.AI | Yes | 1.3e+09 contacts | Yes | Yes | Yes | 8.5 | |
| 1 | ZoomInfo | 3.21e+08 contacts | Yes | Yes | Yes | 9.3 | ||
| 2 | Apollo | Yes | 275 contacts | Yes | Yes | 9.2 | ||
| 3 | Lusha | Yes | 2.9e+08 contacts | Yes | Yes | Yes | 9.1 | |
| 4 | D&B Hoovers | No | $529/yr | 5.2e+08 contacts | Yes | Yes | Yes | 9.0 |
| 5 | 6sense | No | 4.5e+08 contacts | Yes | Yes | Yes | 8.8 | |
| 6 | Cognism | No | Yes | Yes | Yes | 8.7 | ||
| 7 | People Data Labs | Yes | 3e+09 contacts | Yes | Yes | 8.6 | ||
| 8 | SalesIntel | No | 2e+08 contacts | Yes | Yes | Yes | 8.4 | |
| 9 | LeadIQ | Yes | $15/user/mo | 7.5e+08 contacts | Yes | Yes | Yes | 8.3 |
| 10 | UpLead | No | $74/mo | 2e+08 contacts | Yes | Yes | Yes | 8.2 |
| 11 | Data Axle | No | $25/unit usage-based | 1.83e+08 contacts | Yes | Yes | Yes | 8.1 |
| 12 | Lead411 | No | $490/yr | Yes | Yes | Yes | 8.0 | |
| 13 | ContactOut | Yes | 4e+08 contacts | Yes | Yes | 7.9 | ||
| 14 | Wiza | Yes | $49/user/mo | 8.5e+08 contacts | Yes | Yes | 7.8 | |
| 15 | GetProspect | Yes | 7.8e+08 contacts | Yes | Yes | 7.7 |
Head-to-Head
- Seamless.AI vs ZoomInfo
- Seamless.AI vs Apollo
- Seamless.AI vs Lusha
- Seamless.AI vs D&B Hoovers
- Seamless.AI vs 6sense
- Seamless.AI vs Cognism
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update