Clay vs TheirStack: Data Enrichment Tool Comparison

Clay vs TheirStack: Data Enrichment Tool Comparison

If you are comparing B2B lead data and contact enrichment tools, Clay and TheirStack will likely both appear on your radar. They share some surface-level similarities, but the details reveal important differences in pricing, capability, and target audience.

The Quick Answer

By each vendor's own wording, Clay lists 150+ data provider integrations and ai-powered enrichment (claygent), while TheirStack lists job search and company search. A capability both offer can appear under different names, so read both feature lists below.

TheirStack offers a lower entry point at $0/mo compared to Clay at $185/mo.

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

Clay is Data enrichment and workflow automation platform with 150+ integrations and AI-powered enrichment (Claygent).

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

$185/moClay entry plan

Launch

FreeTheirStack entry plan

Free

Clay Pricing (as of September 2026)

Source: Clay Pricing

TheirStack Pricing (as of September 2026)

Source: TheirStack Pricing

Pricing Analysis

TheirStack offers the lower entry point ($0/mo vs $185/mo). Teams watching their budget will appreciate the savings, especially when starting out.

TheirStack offers 4 pricing tiers compared to Clay's 3, giving you more granularity as you scale.

TheirStack includes a free tier, which is helpful for evaluating the platform without upfront cost.

Features Breakdown

Clay lists

• 150+ data provider integrations
• AI-powered enrichment (Claygent)
• Unlimited users on all plans
• Credit rollover
• Workflow automation
• Data waterfall enrichment
• and 2 more listed below

Both tools

• Webhooks

TheirStack lists

• Job search
• Company search
• Company lookup
• Enrichment
• Exports
• Email alerts
• and 1 more listed below

Clay Key Features

• 150+ data provider integrations
• AI-powered enrichment (Claygent)
• Unlimited users on all plans
• Credit rollover
• Workflow automation
• Data waterfall enrichment
• Custom API key support
• HTTP API integration
• Webhooks

TheirStack Key Features

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

Shared Capabilities

Both Clay 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 Clay

• 150+ data provider integrations
• AI-powered enrichment (Claygent)
• Unlimited users on all plans
• Credit rollover
• Workflow automation
• Data waterfall enrichment
• Custom API key support
• HTTP API integration

Listed only by TheirStack

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

Integration Ecosystem

Clay Integrations

Clay connects with: Salesforce, HubSpot, Pipedrive, Close, Apollo.io, Clearbit, ZoomInfo, Lemlist, Instantly, Smartlead, OpenAI, Google Sheets, Airtable, Notion.

TheirStack Integrations

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

Integrations listed only by Clay: Salesforce, HubSpot, Pipedrive, Close, Apollo.io, Clearbit, ZoomInfo, Lemlist, Instantly, Smartlead, OpenAI, Google Sheets, Airtable, Notion.

Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N, Zapier.

Use Case Recommendations

Best Fit for Clay

• Mid-market to enterprise teams with established B2B lead data and contact enrichment budgets
• Teams that need a wide feature set (9 capabilities listed)
• Organizations with complex tech stacks needing broad integration support (14 integrations)
• 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

Clay and TheirStack both serve the B2B lead data and contact enrichment market. TheirStack offers a more accessible entry point, while Clay starts at $185/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 Clay and TheirStack for current information.