10 AI tools ranked, each with a short verdict.
Best AI data enrichment tools with a free plan: Top 10 Ranked. ZoomInfo ranks first, with a Lister Score of 98.0.
ZoomInfo takes the top spot on this list for B2B sales teams. LeadGuide is built for founder-led B2B sales, and reads sales context but never acts without user approval. Persana serves SDRs and founders.| RANK | ENTRY | BEST FOR | SCORE | FROM |
|---|---|---|---|---|
| 1 |  ZoomInfoOffers a permanent free plan called ZoomInfo Lite | Enterprise sales and marketing teams | 98.0 | Custom |
| 2 |  Connect The DotsConnect The Dots builds a relationship graph from team signals to generate warm intros | Sales teams | 90.0 | – |
| 3 |  KasprThe AI tool provides a Chrome extension to get contact data directly on LinkedIn profiles | LinkedIn-heavy prospecting in Europe | 90.0 | €49 per month |
| 4 |  LeadGuideThe AI tool gathers signals and context in seconds rather than hours | founder-led B2B sales | 90.0 | – |
| 5 |  PersanaThe AI tool generates personalized outreach messages at scale | SDRs and founders | 90.0 | – |
| 6 |  Speak AIBuilt for Sales teams and researchers | Sales teams | 90.0 | – |
| 7 |  BardeenQualifies leads using AI based on ideal descriptions | GTM teams | 88.0 | – |
| 8 |  ContextFetchOffers a free tier with thirty monthly briefings and no credit card requirement | Sales, recruiting, and investing professionals | 86.0 | – |
| 9 |  Regie.aiUses waterfall enrichment and only bills for verified data hits | prospecting reps and founders | 86.0 | – |
| 10 |  Bread & ButterBuilt for teams automating growth | teams automating growth | 84.0 | – |
CURATED · UPDATED HOW WE RANK → | ||||
Start from what you need it for. Where each entry fits best:
Each entry's Lister Score on this ranking weighs fit to the list (40%), evidence on the site (20%), published detail (20%) and buying signals (20%).
Each entry's full verdict is below.
ZoomInfo helps sales and marketing find and grow business.
Connect The Dots builds a relationship graph from team signals to generate warm intros. It enriches and deduplicates professional networks for individuals and companies.
Kaspr offers verified phone numbers and email addresses to help users grow their pipeline.
LeadGuide helps users find qualified leads and draft personalized follow-ups to move deals forward.
Persana AI unifies go-to-market motions by blending data sources and automation. It helps teams find, engage, and boost revenue on autopilot.
Speak AI is a conversation intelligence platform that transcribes and analyzes audio and video.
Bardeen is an automation platform that helps teams eliminate manual tasks. It uses AI agents to scrape, enrich, and qualify leads.
ContextFetch is a company research tool that generates decision-grade account briefings in five seconds. It synthesizes public web sources and the current page to provide estimated revenue, headcount, funding, and tech stack data.
Regie.ai is an AI sales prospecting platform that helps users find buyers and prepare outreach. It combines enrichment, research, and dialing into a single workflow.
Bread & Butter is an AI tool. It says it is built for teams automating growth.
Ask us for a quote for one, two or three years. Nothing recurring.
Positions #4 to #10 are available to larger companies. Contact us.
Tell us about your company and we will reply by email.
ZoomInfo ranks first on Lister. ZoomInfo helps sales and marketing find and grow business.
1. ZoomInfo; 2. Connect The Dots; 3. Kaspr; 4. LeadGuide; 5. Persana; 6. Speak AI; 7. Bardeen; 8. ContextFetch; 9. Regie.ai; 10. Bread & Butter.
No free option is confirmed in the recorded pricing for this ranking. Check each provider's pricing page for current plans and trials.
ZoomInfo says it is built for B2B sales teams, and Connect The Dots and Kaspr both for Sales teams. LeadGuide says it is built for founder-led B2B sales.
LeadGuide states that the free plan excludes email enrichment and integrations. Those are the limits each AI tool publishes itself, not a full account of any plan.
Where we checked each company's facts, and when.
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