Coresignal vs Overloop AI: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare Coresignal (data enrichment tool) and Overloop AI (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Compare Coresignal (data enrichment tool) and Overloop AI (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Reviewed and updated September 2, 2026
Coresignal vs Overloop AI: Data Enrichment Tool vs Sales Engagement Platform Comparison
Sales teams building an outbound stack often weigh Coresignal, a data enrichment tool for B2B lead data and contact enrichment, against Overloop AI, a sales engagement platform for multi-channel sales outreach and engagement tracking. They cover different parts of the workflow, so this comparison covers what each one does, what each one costs, and where they overlap.
The Quick Answer
Coresignal is a data enrichment tool for B2B lead data and contact enrichment; Overloop AI is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, Coresignal lists multi-source endpoints and agentic search api, and Overloop AI lists ai-powered campaigns and 450m+ prospects database.
Coresignal offers a lower entry point at $0/mo compared to Overloop AI at $69/mo.
If your priority is finding accurate contact data for target accounts, Coresignal is the one built for it; for coordinating outreach across email, phone, and social channels, that is Overloop AI. Many teams run one of each.
Understanding the Core Difference
Coresignal is B2B web data provider serving company, employee and job posting records through search and enrichment APIs, a natural language agentic search API, and bulk datasets.
Overloop AI is Sales prospecting platform that finds verified B2B contacts and runs personalized email and social outreach campaigns. Includes a 450M+ B2B contact database, an email finder and verifier, and AI-written campaigns and follow-ups.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Free tier
Starter
Coresignal Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Free tier | Free | 2,000 credits, 7 day free trial |
| Mini | $49/mo | 2,500 credits per month |
| Starter | $199/mo | 12,000 credits per month |
| Pro | $499/mo | 35,000 credits per month |
| Growth | $1000/mo | 150,000 credits per month |
| Premium | $1500/mo | 1,000,000 credits per month |
| Scale | $3000/mo | 4,000,000 credits per month |
| Elite | $5000/mo | 10,000,000 credits per month |
| Datasets | Contact Sales | Companies, Employees and Job postings datasets, delivered as JSON or CSV |
Source: Coresignal Pricing
Overloop AI Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $69/mo | 250 credits per month per user | 1 email account per user; 3 campaigns |
| Growth | $99/mo | 500 credits per month per user | 3 email accounts per user; 10 campaigns |
| Enterprise | Contact Sales | 1,000 credits per month per user | Unlimited email accounts; Unlimited campaigns |
Source: Overloop AI Pricing
Pricing Analysis
Coresignal is more affordable at the entry level ($0/mo vs $69/mo). For teams with tight budgets or those just getting started with B2B lead data and contact enrichment and multi-channel sales outreach and engagement tracking, this price difference matters.
Coresignal offers 9 pricing tiers compared to Overloop AI's 3, giving you more granularity as you scale.
Coresignal includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- Multi-source endpoints
- Agentic Search API
- Elasticsearch DSL
- Webhooks
- Search preview
- Contact Enrichment API
- and 2 more listed below
- AI-powered campaigns
- 450M+ prospects database
- Verified Email Addresses
- Smart multichannel campaigns (Email + social)
- AI-powered Outreach Followups
- Email Finder & Verifier
- and 4 more listed below
Coresignal Key Features
- Multi-source endpoints
- Agentic Search API
- Elasticsearch DSL
- Webhooks
- Search preview
- Contact Enrichment API
- 3-month credit rollover
- Dedicated account manager support
Overloop AI Key Features
- AI-powered campaigns
- 450M+ prospects database
- Verified Email Addresses
- Smart multichannel campaigns (Email + social)
- AI-powered Outreach Followups
- Email Finder & Verifier
- Chrome Extension for LinkedIn
- Conversations Inbox
- Email Warmup
- REST API
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by Coresignal
- Multi-source endpoints
- Agentic Search API
- Elasticsearch DSL
- Webhooks
- Search preview
- Contact Enrichment API
- 3-month credit rollover
- Dedicated account manager support
Listed only by Overloop AI
- AI-powered campaigns
- 450M+ prospects database
- Verified Email Addresses
- Smart multichannel campaigns (Email + social)
- AI-powered Outreach Followups
- Email Finder & Verifier
- Chrome Extension for LinkedIn
- Conversations Inbox
- Email Warmup
- REST API
Integration Ecosystem
Coresignal Integrations
Coresignal connects with: n8n, Zapier, Clay, Databricks, Google Cloud, Amazon S3, Snowflake, Azure.
Overloop AI Integrations
Overloop AI connects with: HubSpot, Salesforce, Pipedrive, Zapier, Slack, Calendly, Gmail, Outlook.
Shared Integrations
Both tools integrate with: Zapier.
Integrations listed only by Coresignal: n8n, Clay, Databricks, Google Cloud, Amazon S3, Snowflake, Azure.
Integrations listed only by Overloop AI: HubSpot, Salesforce, Pipedrive, Slack, Calendly, Gmail, Outlook.
Use Case Recommendations
Best Fit for Coresignal
- Budget-conscious teams looking for an affordable data enrichment tool
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for Overloop AI
- Teams that need a wide feature set (10 capabilities listed)
- Enterprise buyers who prefer custom pricing and dedicated support
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
Feature Comparison Summary
| Feature | Coresignal | Overloop AI |
|---|---|---|
| Starting Price | Free | $69/mo |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 8 | 10 |
| Integrations | 8 | 8 |
| Founded | N/A | 2015 |
Getting Started Checklist
- Define your B2B lead data and contact enrichment and multi-channel sales outreach and engagement tracking requirements and monthly budget
- Estimate your expected data credits or contact lookups and sequences and engagement actions to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
Coresignal serves the B2B lead data and contact enrichment side of an outbound stack and Overloop AI the multi-channel sales outreach and engagement tracking side. Coresignal offers a more accessible entry point, while Overloop AI starts at $69/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit Coresignal and Overloop AI for current information.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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