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Description

LeadSonar is an innovative platform designed for B2B lead intelligence and sales prospecting, seamlessly integrating lead discovery, email verification, phone enrichment, ICP scoring, and AI-generated outreach openers within a unified workspace. This platform utilizes a sophisticated waterfall cascade that sources information from over 18 data providers, such as LeadMagic, Prospeo, Apollo, Hunter, and RocketReach, prioritizing rapid primary sources while employing fallback providers, and implementing a stop-on-hit mechanism that ceases the search once a verified result is located. With an impressive 99.9% accuracy rate for emails, a 95% success rate for leads, and the ability to enrich 25 profiles every second, LeadSonar stands out in its efficiency. Each lead enriched through the platform yields more than 30 data fields, enhancing the overall value proposition. Additionally, LeadSonar features advanced AI capabilities, including Sonya, a virtual sales assistant that manages the entire process of searching, verifying, and exporting data via simple English commands, alongside a scoring system that evaluates ideal customer profiles with A/B/C/D grades and a confidence scale from 0 to 100. Furthermore, the platform generates AI-crafted subject lines and opening lines that are specifically customized to align with the respective roles and companies of each lead.

Description

Your go-to-market teams often find themselves dedicating significant time to the tedious tasks of data research and organization. With Scalestack's advanced AI, all your GTM data is seamlessly integrated, providing actionable insights and assisting in the execution of your sales strategies. This innovative solution enables a remarkable boost in sales efficiency and overall growth. You can enrich and evaluate potential customer profiles in real-time and at any scale using our AI-driven universal API. It’s time to activate your funnel effectively to ensure the right prospects are directed toward nurturing, self-service, or sales assistance. Scalestack consolidates all your go-to-market data, equipping your teams with enriched and prioritized account insights that align with the essential attributes of your ideal customer profile. The challenges of targeting, account mapping, allocation, and territory management are now addressed. Whether you’re aiming to maximize the value from your inbound leads or score specific accounts based on ICP characteristics, Scalestack’s AI-enhanced enrichment and prioritization platform is designed to meet those needs. Shift your focus towards engaging the most relevant accounts and leads at the opportune moment, providing your sales representatives with the necessary context to enhance customer interactions and drive success. This transformation allows your teams to operate more strategically and effectively in a competitive marketplace.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

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Integrations

Airtable No 
Captain Data No 
Claude Fable 5 No 
Claude Fable 5.5 No 
Claude Mythos 5.1 No 
Claude Opus 4.6 No 
Claude Opus 4.7 No 
Claude Opus 5.5 No 
ContactOut No 
Crunchbase No 
Dropcontact No 
HubSpot Customer Platform No 
Intellizence No 
LinkedIn No 
Polygon.io No 
RocketReach No 
Salesforce No 
Swordfish No 
Tackle Cloud GTM Platform No 
ZoomInfo No 

Integrations

Airtable Yes 
Captain Data Yes 
Claude Fable 5 Yes 
Claude Fable 5.5 Yes 
Claude Mythos 5.1 Yes 
Claude Opus 4.6 Yes 
Claude Opus 4.7 Yes 
Claude Opus 5.5 Yes 
ContactOut Yes 
Crunchbase Yes 
Dropcontact Yes 
HubSpot Customer Platform Yes 
Intellizence Yes 
LinkedIn Yes 
Polygon.io Yes 
RocketReach Yes 
Salesforce Yes 
Swordfish Yes 
Tackle Cloud GTM Platform Yes 
ZoomInfo Yes 

Pricing Details

$24/mo for 5k leads (annual)
Free Trial Yes 
Free Version No 

Pricing Details

On demand. Not offered by user seat or licence.
Scalestack offers an enterprise custom solution
Free Trial No 
Free Version No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) Yes 
Online Support No 

Customer Support

Business Hours No 
Live Rep (24/7) Yes 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars Yes 
Live Training (Online) Yes 
In Person No 

Vendor Details

Company Name

LeadSonar

Founded

2026

Country

United States

Website

leadsonar.io

Vendor Details

Company Name

Scalestack

Country

United States

Website

scalestack.ai/

Product Features

B2B Data

B2B Contact Data No 
B2B Intent Data No 
B2B Leads Data No 
B2B Marketing Data No 
Business Ownership Data No 
Company Data No 
Employee Data No 
Firmographic Data No 
Job Posting Data No 
Salary Data No 
Technographic Data No 

Sales Intelligence

CRM Integration No 
Data Cleaning No 
Data Enrichment No 
Data Import/Export No 
Data Mining No 
Data Verification No 
Email Integration No 
Lead Scoring No 
List Building No 
Performance Management No 
Pipeline Management No 
Predictive Modeling/Analytics No 
Prospecting Tools No 
Reporting/Analytics No 
Sales Forecasting No 

Product Features

Revenue Operations

AI Insights Yes 
Account Health Dashboard Yes 
Automatic CRM Updates Yes 
Contact / Activity Tracking Yes 
RevOps Automation Yes 
Revenue Dashboard No 
Revenue Intelligence / Reporting Yes 
Sales Analytics Yes 
Sales Forecasting Yes 
Third-Party Data Aggregation Yes 

Sales Intelligence

CRM Integration Yes 
Data Cleaning Yes 
Data Enrichment Yes 
Data Import/Export Yes 
Data Mining No 
Data Verification Yes 
Email Integration Yes 
Lead Scoring Yes 
List Building Yes 
Performance Management No 
Pipeline Management No 
Predictive Modeling/Analytics Yes 
Prospecting Tools Yes 
Reporting/Analytics Yes 
Sales Forecasting No 

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