SignalHire vs TheirStack: Data Enrichment Tool Comparison
Compare SignalHire and TheirStack side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
SignalHire is a real-time verified contact finder with a browser extension for LinkedIn, Facebook, and Twitter, founded in 2015, listing 9 features and 7 integrations. TheirStack is a job posting and technographics database founded in 2021, listing 8 features and 5 integrations. Both offer free tiers; SignalHire's top tier costs $69/mo, TheirStack's API tier costs $49/mo.
Key takeaways
- Both SignalHire and TheirStack offer free tiers priced at $0/mo.
- SignalHire's top paid tier costs $69/mo for either 1000 email credits or 435 phone credits, while TheirStack's API, Webhooks & MCP tier costs $49/mo for 1,500 API credits.
- TheirStack offers 4 pricing tiers compared to SignalHire's 3 pricing tiers.
- SignalHire lists 9 features and integrates with 7 tools including Salesforce, HubSpot, Greenhouse, and Lever.
- TheirStack lists 8 features and integrates with 5 tools including Clay, LinkedIn Audiences, Make, and N8N.
Reviewed and updated September 5, 2026
SignalHire vs TheirStack: Data Enrichment Tool Comparison
SignalHire and TheirStack are both data enrichment tools. Choosing between them depends on your team size, budget, and specific B2B lead data and contact enrichment requirements. Here is what each vendor publishes about pricing, features, and integrations.
The Quick Answer
By each vendor's own wording, SignalHire lists real-time verified contact data and browser extension for linkedin, facebook, twitter, while TheirStack lists job search and company lookup. 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
SignalHire is Real-time verified contact finder with browser extension for LinkedIn, Facebook, and Twitter, plus team collaboration features.
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 company search. Where they diverge is in their approach to pricing tiers and advanced capabilities.
Pricing Comparison
SignalHire Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free | Free | 5 or 10* credits | - |
| Emails (1000 credits, billed monthly) | $69/mo | 1000 credits | 1000 credits |
| Phones (435 credits, billed monthly) | $69/mo | 435 credits | - |
Source: SignalHire Pricing
TheirStack Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Free | Free | 50 company credits and 200 API credits per month |
| App | Usage-based | Company credit packs from 1,000 to 200,000 credits |
| API, Webhooks & MCP | $49/mo | 1,500 API credits per month |
| Datasets | Contact Sales | Jobs, Technographics and Buying intents datasets |
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.
TheirStack offers 4 pricing tiers compared to SignalHire's 3, giving you more granularity as you scale.
Both platforms offer free tiers, so you can test each one before spending anything.
Features Breakdown
- Real-time verified contact data
- Browser extension for LinkedIn, Facebook, Twitter
- Unlimited users on all plans
- Team management and collaboration
- CSV export
- ATS and CRM integration
- and 2 more listed below
- Company search
- Job search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- and 1 more listed below
SignalHire Key Features
- Real-time verified contact data
- Browser extension for LinkedIn, Facebook, Twitter
- Unlimited users on all plans
- Team management and collaboration
- CSV export
- ATS and CRM integration
- Bulk search capabilities
- Technology tracking
- Company search
TheirStack Key Features
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Shared Capabilities
Both SignalHire and TheirStack include:
- Company search
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 SignalHire
- Real-time verified contact data
- Browser extension for LinkedIn, Facebook, Twitter
- Unlimited users on all plans
- Team management and collaboration
- CSV export
- ATS and CRM integration
- Bulk search capabilities
- Technology tracking
Listed only by TheirStack
- Job search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
SignalHire Integrations
SignalHire connects with: Salesforce, HubSpot, Greenhouse, Lever, Zapier, Gmail, Outlook.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Shared Integrations
Both tools integrate with: Zapier.
Integrations listed only by SignalHire: Salesforce, HubSpot, Greenhouse, Lever, Gmail, Outlook.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N.
Use Case Recommendations
Best Fit for SignalHire
- Budget-conscious teams looking for an affordable data enrichment tool
- Teams that need a wide feature set (9 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (7 integrations)
- Teams that want to start free and scale up as needs grow
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
| Feature | SignalHire | TheirStack |
|---|---|---|
| Starting Price | Free | Free |
| Top Tier Price | $69/mo | Contact Sales |
| Total Features Listed | 9 | 8 |
| Integrations | 7 | 5 |
| Founded | 2015 | 2021 |
Getting Started Checklist
- Define your B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected data credits or contact lookups 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
SignalHire and TheirStack both serve the B2B lead data and contact enrichment market. SignalHire 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 SignalHire and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- Is SignalHire or TheirStack cheaper?
- Both platforms start at the same $0/mo free tier. Beyond that, SignalHire's top tier costs $69/mo for 1000 email credits or 435 phone credits, while TheirStack's API, Webhooks & MCP tier costs $49/mo for 1,500 API credits, and its Datasets tier requires contacting sales.
- What integrations does SignalHire offer?
- SignalHire connects with Salesforce, HubSpot, Greenhouse, Lever, Zapier, Gmail, and Outlook, totaling 7 integrations. Six of these, Salesforce, HubSpot, Greenhouse, Lever, Gmail, and Outlook, are listed only by SignalHire and not by TheirStack.
- What integrations does TheirStack offer?
- TheirStack connects with Clay, LinkedIn Audiences, Make, N8N, and Zapier, totaling 5 integrations. Four of these, Clay, LinkedIn Audiences, Make, and N8N, are listed only by TheirStack and not by SignalHire.
- Which tool is better suited for enterprise buyers?
- TheirStack is recommended for enterprise buyers who prefer custom pricing and dedicated support, since its Datasets tier for jobs, technographics, and buying intents data requires contacting sales rather than a fixed price. SignalHire, by contrast, is positioned for budget-conscious teams and organizations with complex tech stacks needing broad integration support.
- When were SignalHire and TheirStack founded?
- SignalHire was founded in 2015 and TheirStack was founded in 2021, according to the article's feature comparison summary.
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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