Close vs TheirStack: CRM Platform vs Data Enrichment Tool Comparison
Compare Close (CRM platform) and TheirStack (data enrichment tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Close is a CRM platform for sales pipeline tracking and customer relationship management, starting at $19/mo, while TheirStack is a data enrichment tool for B2B lead and contact enrichment, starting free. Close focuses on calling, SMS, and deal tracking; TheirStack focuses on job search, company search, and technographics data. Many teams use both together.
Key takeaways
- Close's Solo plan costs $19/mo and is limited to 10,000 leads.
- TheirStack's Free plan includes 50 company credits and 200 API credits per month.
- Close was founded in 2013, while TheirStack was founded in 2021.
- Close lists 8 integrations including Slack, Gmail, HubSpot, and Zoom, compared to TheirStack's 5 integrations including Clay and LinkedIn Audiences.
- Both Close and TheirStack integrate with Zapier.
Reviewed and updated September 5, 2026
Close vs TheirStack: CRM Platform vs Data Enrichment Tool Comparison
Close (CRM platform) and TheirStack (data enrichment tool) sit next to each other in many outbound stacks. They are not substitutes for each other on every job, so this comparison covers pricing, features, and integrations for each and points out where the two meet.
The Quick Answer
Close is a CRM platform for customer relationship management and sales pipeline tracking; TheirStack is a data enrichment tool for B2B lead data and contact enrichment. By each vendor's own wording, Close lists built-in calling with power dialer and native sms messaging, and TheirStack lists job search and company search.
TheirStack offers a lower entry point at $0/mo compared to Close at $19/mo.
If your priority is organizing contacts, tracking deals, and forecasting revenue, Close is the one built for it; for finding accurate contact data for target accounts, that is TheirStack. Many teams run one of each.
Understanding the Core Difference
Close is A CRM built specifically for inside sales teams, with built-in calling, SMS, and email functionality. Close focuses on reducing manual data entry and increasing sales velocity with features like Power Dialer, predictive dialing, and workflow automation.
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.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Solo
Free
Close Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Solo | $19/mo | Limited to 10k leads |
| Essentials | $49/mo | - |
| Growth | $109/mo | - |
| Scale | $149/mo | - |
Source: Close 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
TheirStack offers the lower entry point ($0/mo vs $19/mo). Teams watching their budget will appreciate the savings, especially when starting out.
TheirStack includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Built-in calling with Power Dialer
- Native SMS messaging
- Email sequences and templates
- Automated workflows
- Predictive dialing
- AI Email Assistant
- and 2 more listed below
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- and 2 more listed below
Close Key Features
- Built-in calling with Power Dialer
- Native SMS messaging
- Email sequences and templates
- Automated workflows
- Predictive dialing
- AI Email Assistant
- Pipeline and activity reporting
- Role-based access and permissions
TheirStack Key Features
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
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 Close
- Built-in calling with Power Dialer
- Native SMS messaging
- Email sequences and templates
- Automated workflows
- Predictive dialing
- AI Email Assistant
- Pipeline and activity reporting
- Role-based access and permissions
Listed only by TheirStack
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
Close Integrations
Close connects with: Zapier, Slack, Gmail, Microsoft Outlook, Zoom, HubSpot, Segment, Calendly.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Shared Integrations
Both tools integrate with: Zapier.
Integrations listed only by Close: Slack, Gmail, Microsoft Outlook, Zoom, HubSpot, Segment, Calendly.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N.
Use Case Recommendations
Best Fit for Close
- Budget-conscious teams looking for an affordable CRM platform
- Organizations with complex tech stacks needing broad integration support (8 integrations)
- Sales teams tracking deals from first touch to close
- Managers who need pipeline visibility and forecasting
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 | Close | TheirStack |
|---|---|---|
| Starting Price | $19/mo | Free |
| Top Tier Price | $149/mo | Contact Sales |
| Total Features Listed | 8 | 8 |
| Integrations | 8 | 5 |
| Founded | 2013 | 2021 |
Getting Started Checklist
- Define your customer relationship management and sales pipeline tracking and B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected contacts and deals and 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
Close serves the customer relationship management and sales pipeline tracking side of an outbound stack and TheirStack the B2B lead data and contact enrichment side. TheirStack offers a more accessible entry point, while Close starts at $19/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 Close and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Close and TheirStack?
- Close is a CRM platform built for inside sales teams, offering built-in calling, SMS, and pipeline tracking. TheirStack is a data enrichment tool that finds companies by technology use and hiring activity, then enriches company lists with technographics and buying intent data. They solve different parts of the sales process.
- Is Close or TheirStack cheaper to start with?
- TheirStack has the lower entry point, offering a free tier, compared to Close's Solo plan at $19/mo. TheirStack's free plan includes 50 company credits and 200 API credits per month, making it easier to evaluate before paying anything.
- Can I use Close and TheirStack together?
- Yes, the article notes that many teams run one of each since they serve different purposes. Close handles contact organization, deal tracking, and revenue forecasting, while TheirStack handles finding accurate contact data for target accounts.
- What integrations does Close support that TheirStack doesn't?
- Close integrates with Slack, Gmail, Microsoft Outlook, Zoom, HubSpot, Segment, and Calendly, none of which are listed for TheirStack. Both platforms do share a Zapier integration in common.
- Which tool is better for enterprise buyers?
- TheirStack is recommended for enterprise buyers who prefer custom pricing and dedicated support, since its Datasets plan is available through Contact Sales. Close is instead positioned for budget-conscious teams and organizations needing broad integration support across a complex tech stack.
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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