Common Room vs TheirStack: Data Enrichment Tool Comparison
Compare Common Room and TheirStack side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Common Room and TheirStack are both B2B data enrichment tools, but Common Room is a buyer intelligence platform starting at $2500/mo with 10 integrations, while TheirStack is a job posting and technographics database with a free tier and 5 integrations. Common Room suits mid-market to enterprise teams, TheirStack suits budget-conscious teams.
Key takeaways
- Common Room's Essential plan costs $2500/mo and includes up to 100k contacts, 5 seats, 5k RoomieAI research credits, and 2.5k Prospector credits.
- TheirStack's Free plan costs nothing and includes 50 company credits and 200 API credits per month.
- TheirStack's API, Webhooks & MCP plan costs $49/mo and includes 1,500 API credits per month.
- Common Room integrates with 10 platforms including Slack, Salesforce, HubSpot, and Snowflake, while TheirStack integrates with 5 platforms including Clay and N8N.
- TheirStack was founded in 2021, while Common Room's founding date is not listed in the comparison.
Reviewed and updated September 4, 2026
Common Room vs TheirStack: Data Enrichment Tool Comparison
If you are comparing B2B lead data and contact enrichment tools, Common Room 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, Common Room lists person360 and account & contact scoring, 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 Common Room at $2500/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
Common Room is Buyer intelligence platform that unifies first-party data, enrichment and real-world buying signals into identity-resolved person and account profiles, with AI agents and embedded workflows.
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
Essential
Free
Common Room Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Essential | $2500/mo | Up to 100k contacts, 5 seats included, 5k RoomieAI research credits and 2.5k Prospector credits |
| Advanced | Contact Sales | Up to 250k contacts, 15 seats included, 7.5k RoomieAI research credits and 7.5k Prospector credits |
| Enterprise | Contact Sales | Up to 750k contacts, 30 seats included, 10K RoomieAI research credits and 15K Prospector credits |
Source: Common Room 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 $2500/mo). Teams watching their budget will appreciate the savings, especially when starting out.
TheirStack offers 4 pricing tiers compared to Common Room'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
- Person360
- Account & Contact Scoring
- Ask CR Anything
- Spark Notifications
- Spark Briefs
- Custom Signals
- and 2 more listed below
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- and 2 more listed below
Common Room Key Features
- Person360
- Account & Contact Scoring
- Ask CR Anything
- Spark Notifications
- Spark Briefs
- Custom Signals
- Job Changes Tracking
- Aggregated Signals
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 Common Room
- Person360
- Account & Contact Scoring
- Ask CR Anything
- Spark Notifications
- Spark Briefs
- Custom Signals
- Job Changes Tracking
- Aggregated Signals
Listed only by TheirStack
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
Common Room Integrations
Common Room connects with: Slack, Salesforce, HubSpot, GitHub, Discord, LinkedIn, Snowflake, Marketo, Outreach, Zapier.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Shared Integrations
Both tools integrate with: Zapier.
Integrations listed only by Common Room: Slack, Salesforce, HubSpot, GitHub, Discord, LinkedIn, Snowflake, Marketo, Outreach.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N.
Use Case Recommendations
Best Fit for Common Room
- Mid-market to enterprise teams with established B2B lead data and contact enrichment budgets
- Organizations with complex tech stacks needing broad integration support (10 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
| Feature | Common Room | TheirStack |
|---|---|---|
| Starting Price | $2500/mo | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 8 | 8 |
| Integrations | 10 | 5 |
| Founded | N/A | 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
Common Room and TheirStack both serve the B2B lead data and contact enrichment market. TheirStack offers a more accessible entry point, while Common Room starts at $2500/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 Common Room and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- How much does Common Room cost compared to TheirStack?
- Common Room's Essential plan starts at $2500/mo, covering up to 100k contacts, 5 seats, 5k RoomieAI research credits, and 2.5k Prospector credits. TheirStack offers a Free plan with 50 company credits and 200 API credits per month, plus a $49/mo API, Webhooks & MCP plan with 1,500 API credits monthly.
- What integrations does Common Room offer versus TheirStack?
- Common Room connects with 10 tools including Slack, Salesforce, HubSpot, GitHub, Discord, LinkedIn, Snowflake, Marketo, Outreach, and Zapier. TheirStack connects with 5 tools including Clay, LinkedIn Audiences, Make, N8N, and Zapier. Zapier is the only integration both platforms share.
- Which tool is better for a budget-conscious team?
- TheirStack is the better fit for budget-conscious teams since it offers a free tier and lets teams start free and scale up as needs grow. Common Room's entry plan costs $2500/mo, which is aimed more at mid-market to enterprise teams with established contact enrichment budgets.
- What features are unique to Common Room compared to TheirStack?
- Common Room lists features such as Person360, Account & Contact Scoring, Ask CR Anything, Spark Notifications, Spark Briefs, Custom Signals, Job Changes Tracking, and Aggregated Signals. These do not appear on TheirStack's own feature list, though a capability both tools offer can appear under different names.
- Is Common Room or TheirStack better suited for enterprise teams?
- Common Room is positioned as the better fit for mid-market to enterprise teams with established contact enrichment budgets and complex tech stacks needing broad integration support across 10 tools. Both Common Room and TheirStack also list enterprise buyers who prefer custom pricing and dedicated support as a good fit.
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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