Prospeo vs TheirStack: Data Enrichment Tool Comparison
Compare Prospeo and TheirStack side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Prospeo and TheirStack both offer free entry-level plans for B2B lead data and contact enrichment. Prospeo focuses on people and company search, mobile numbers, and intent signals with 10 integrations, topping out at $249 per month. TheirStack focuses on job search and technographics with 5 integrations, with its Datasets tier requiring contacting sales.
Key takeaways
- Prospeo's Free plan includes 100 credits per month, while TheirStack's Free plan includes 50 company credits and 200 API credits per month.
- Prospeo's Pro plan costs $249 per month for 15,000 credits per user per month, with 180,000 per user per year on yearly billing.
- TheirStack's API, Webhooks & MCP plan costs $49 per month for 1,500 API credits per month.
- Prospeo lists 10 integrations including Salesforce, HubSpot, Pipedrive, and monday.com, while TheirStack lists 5 integrations including Clay, Make, N8N, and Zapier.
- TheirStack was founded in 2021, while Prospeo's founding year is not listed in the comparison.
Reviewed and updated September 4, 2026
Prospeo vs TheirStack: Data Enrichment Tool Comparison
Sales teams evaluating B2B lead data and contact enrichment tools often narrow their shortlist to Prospeo and TheirStack. Both target the same job, but they cater to different workflows and budgets. This comparison covers pricing, features, and integrations so you can pick the right fit.
The Quick Answer
By each vendor's own wording, Prospeo lists people & company search and ai search & lookalikes, 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
Prospeo is B2B lead search and data enrichment platform for verified work emails, direct mobile numbers, intent signals, and CRM data enrichment.
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
Prospeo Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Free | Free | 100 credits per month |
| Starter | $49/mo | 2,000 credits per user per month; 24,000 per user per year on yearly billing |
| Growth | $99/mo | 5,000 credits per user per month; 60,000 per user per year on yearly billing |
| Pro | $249/mo | 15,000 credits per user per month; 180,000 per user per year on yearly billing |
Source: Prospeo 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.
Both platforms offer free tiers, so you can test each one before spending anything.
Features Breakdown
- People & Company Search
- AI Search & Lookalikes
- Chrome Extension
- CRM Data Enrichment
- Find mobile numbers
- Intent Signals
- and 2 more listed below
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- and 2 more listed below
Prospeo Key Features
- People & Company Search
- AI Search & Lookalikes
- Chrome Extension
- CRM Data Enrichment
- Find mobile numbers
- Intent Signals
- CSV & API Enrichment
- Unused credits rollover
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 Prospeo
- People & Company Search
- AI Search & Lookalikes
- Chrome Extension
- CRM Data Enrichment
- Find mobile numbers
- Intent Signals
- CSV & API Enrichment
- Unused credits rollover
Listed only by TheirStack
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
Prospeo Integrations
Prospeo connects with: Salesforce, HubSpot, Pipedrive, Zoho, Close, monday.com, Smartlead, Instantly, Lemlist, Salesloft.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Integrations listed only by Prospeo: Salesforce, HubSpot, Pipedrive, Zoho, Close, monday.com, Smartlead, Instantly, Lemlist, Salesloft.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Use Case Recommendations
Best Fit for Prospeo
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (10 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 | Prospeo | TheirStack |
|---|---|---|
| Starting Price | Free | Free |
| Top Tier Price | $249/mo | 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
Prospeo and TheirStack both serve the B2B lead data and contact enrichment market. Prospeo 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 Prospeo and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- Is Prospeo or TheirStack cheaper?
- Both platforms start at the same $0 per month price point with free tiers. Beyond that, Prospeo's paid tiers run $49, $99, and $249 per month, while TheirStack offers a $49 per month API, Webhooks & MCP plan, usage-based company credit packs, and a Contact Sales Datasets tier.
- What integrations does Prospeo support?
- Prospeo connects with 10 tools: Salesforce, HubSpot, Pipedrive, Zoho, Close, monday.com, Smartlead, Instantly, Lemlist, and Salesloft. This broader set makes Prospeo a fit for organizations with complex tech stacks that need wide integration support.
- What integrations does TheirStack support?
- TheirStack connects with 5 tools: Clay, LinkedIn Audiences, Make, N8N, and Zapier. This is fewer than Prospeo's 10 listed integrations, according to the feature comparison summary.
- How many features do Prospeo and TheirStack each offer?
- Both platforms list 8 features each on their own pages. Prospeo lists items like People & Company Search, AI Search & Lookalikes, and CRM Data Enrichment, while TheirStack lists items like Job search, Company search, and Webhooks.
- Which tool is better for enterprise buyers who want custom pricing?
- TheirStack is positioned as the better fit for enterprise buyers who prefer custom pricing and dedicated support, largely through its Contact Sales Datasets tier covering Jobs, Technographics, and Buying intent datasets. Prospeo's top tier tops out at $249 per month rather than custom enterprise pricing.
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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