Coresignal vs TheirStack: Data Enrichment Tool Comparison

Coresignal vs TheirStack: Data Enrichment Tool Comparison

Finding the right data enrichment tool can directly impact your revenue pipeline. Coresignal and TheirStack both aim to solve the same core problem (finding accurate contact data for target accounts), yet they approach it differently. Let's break down the specifics.

The Quick Answer

By each vendor's own wording, Coresignal lists multi-source endpoints and agentic search api, while TheirStack lists job search and company search. A capability both offer can appear under different names, so read both feature lists below.

Both start at the same price point ($0/mo), so the decision comes down to features and workflow fit.

If your priority is finding accurate contact data for target accounts, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.

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.

TheirStack is Job posting and technographics database for sales teams. Finds companies by the technologies they use and the roles they are hiring for, and enriches a company list with technographics and buying intent.

Both platforms offer webhooks. Where they diverge is in their approach to pricing tiers and advanced capabilities.

Pricing Comparison

Coresignal Pricing (as of September 2026)

Source: Coresignal Pricing

TheirStack Pricing (as of September 2026)

Source: TheirStack Pricing

Pricing Analysis

Both platforms start at the same $0/mo price point. The decision comes down to which feature set and tier structure works better for your expected usage.

Coresignal offers 9 pricing tiers compared to TheirStack's 4, giving you more granularity as you scale.

Both platforms offer free tiers, so you can test each one before spending anything.

Features Breakdown

Coresignal lists

• Multi-source endpoints
• Agentic Search API
• Elasticsearch DSL
• Search preview
• Contact Enrichment API
• 3-month credit rollover
• and 1 more listed below

Both tools

• Webhooks

TheirStack lists

• Job search
• Company search
• Company lookup
• Enrichment
• Exports
• Email alerts
• and 1 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

TheirStack Key Features

• Job search
• Company search
• Company lookup
• Enrichment
• Exports
• Email alerts
• Webhooks
• MCP server

Shared Capabilities

Both Coresignal and TheirStack include:

• Webhooks

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
• Search preview
• Contact Enrichment API
• 3-month credit rollover
• Dedicated account manager support

Listed only by TheirStack

• Job search
• Company search
• Company lookup
• Enrichment
• Exports
• Email alerts
• MCP server

Integration Ecosystem

Coresignal Integrations

Coresignal connects with: n8n, Zapier, Clay, Databricks, Google Cloud, Amazon S3, Snowflake, Azure.

TheirStack Integrations

TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.

Shared Integrations

Both tools integrate with: n8n, Zapier, Clay.

Integrations listed only by Coresignal: Databricks, Google Cloud, Amazon S3, Snowflake, Azure.

Integrations listed only by TheirStack: LinkedIn Audiences, Make.

Use Case Recommendations

Best Fit for Coresignal

• Budget-conscious teams looking for an affordable data enrichment tool
• Organizations with complex tech stacks needing broad integration support (8 integrations)
• Teams that want to start free and scale up as needs grow
• Enterprise buyers who prefer custom pricing and dedicated support

Best Fit for TheirStack

• 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

Feature Comparison Summary

Getting Started Checklist

1. Define your B2B lead data and contact enrichment requirements and monthly budget
2. Estimate your expected data credits or contact lookups to find the right tier
3. List the integrations your team currently relies on
4. Sign up for free trials or demos of both platforms
5. Run a small test with each tool before making a commitment
6. Evaluate the onboarding experience and support quality

Final Thoughts

Coresignal and TheirStack both serve the B2B lead data and contact enrichment market. Coresignal offers a more accessible entry point, while TheirStack starts at $0/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 TheirStack for current information.