Related Products
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About
LeadSonar is a B2B lead intelligence and sales prospecting platform that consolidates lead discovery, email verification, phone enrichment, ICP scoring, and AI-written outreach openers into a single workspace. The platform runs a waterfall cascade across 18+ data providers (including LeadMagic, Prospeo, Apollo, Hunter, RocketReach etc.), tiered from primary fast sources to fallback providers, with stop-on-hit logic that halts the cascade the moment a verified result is found.
LeadSonar delivers 99.9% email accuracy, a 95% catch rate and bulk enrichment throughput of 25 profiles per second. Each lead returns 30+ enrichment fields. Native AI features include Sonya, a sales agent that runs end-to-end search, verification, and export from a plain-English prompt; ICP scoring with A/B/C/D grades and 0-100 numerical confidence; and AI-written subject lines plus first-line openers tailored to each lead's role and company.
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About
Scalestack is an agentic, enterprise-grade GTM Ops automation platform that helps teams know who to target, at scale, all the time. Their vision is simple: manual and repetitive tasks should be processed by machines, so that instead of scrambling to clean and find data, GTM people focus on using the data, everywhere it is needed. The goal: drive more revenues, and productivity for sales and marketing teams.
Scalestack is not another data source companies need to "add" to their stack - but an orchestration layer that helps them run your GTM Ops and data, automatically through semantic data-waterfall workflows; AI agents to research and validate data; integrations across systems; CRM data enrichment, hygiene, and prioritization capabilities. The platform doesn’t require them to learn new things, or hire agencies to do anything: it does it all, as their own AI GTM engineer.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
LeadSonar is built for B2B SaaS sales teams, GTM and RevOps teams, outbound agencies, SDRs, BDRs, AEs, founders, and growth leaders
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Audience
Teams looking for a solution to improve sales productivity and automate their operations
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and VideosNo images available
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Screenshots and Videos |
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Pricing
$24/mo for 5k leads (annual)
Free Version
Free Trial
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PricingOn demand. Not offered by user seat or licence.
Scalestack offers an enterprise custom solution
Free Version
Free Trial
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Reviews/
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Reviews/
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Pros & Cons from Real UsersPros
Cons
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationLeadSonar
Founded: 2026
United States
leadsonar.io
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Company InformationScalestack
United States
scalestack.ai/
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Alternatives |
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Categories |
Categories |
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Sales Intelligence Features
CRM Integration
Data Cleaning
Data Enrichment
Data Import/Export
Data Mining
Data Verification
Email Integration
Lead Scoring
List Building
Performance Management
Pipeline Management
Predictive Modeling/Analytics
Prospecting Tools
Reporting/Analytics
Sales Forecasting
Revenue Operations Features
Account Health Dashboard
AI Insights
Automatic CRM Updates
Contact / Activity Tracking
Revenue Dashboard
Revenue Intelligence / Reporting
RevOps Automation
Sales Analytics
Sales Forecasting
Third-Party Data Aggregation
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Integrations
Apollo
Captain Data
Claude Fable 5
Claude Opus 4
Claude Opus 4.5
Claude Opus 4.7
Clearbit
Crunchbase
D&B Connect
Enrichley
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Integrations
Apollo
Captain Data
Claude Fable 5
Claude Opus 4
Claude Opus 4.5
Claude Opus 4.7
Clearbit
Crunchbase
D&B Connect
Enrichley
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