Lead411 vs TheirStack: Data Enrichment Tool Comparison
Compare Lead411 and TheirStack side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Lead411 and TheirStack are both B2B data enrichment tools but differ in focus and pricing. Lead411 starts at $49/mo and lists verified emails, direct dials, and Bombora intent data across 10 features and 8 integrations. TheirStack starts free and lists job search, company search, and technographics across 8 features and 5 integrations.
Key takeaways
- Lead411 pricing starts at $49/mo for the Spark plan with 1000 exports per month, and the Ignite plan is $150/mo.
- TheirStack offers a free tier with 50 company credits and 200 API credits per month, plus a $49/mo API, Webhooks and MCP plan with 1,500 API credits per month.
- Lead411 lists 10 features including Bombora intent data and a Chrome extension for LinkedIn, while TheirStack lists 8 features including job search and webhooks.
- Lead411 integrates with 8 tools including Salesforce, HubSpot, and Pipedrive, while TheirStack integrates with 5 tools including Clay and LinkedIn Audiences.
- Zapier and Make are integrations shared by both Lead411 and TheirStack.
- Lead411 was founded in 2001 and TheirStack was founded in 2021.
Reviewed and updated September 4, 2026
Lead411 vs TheirStack: Data Enrichment Tool Comparison
If you are comparing B2B lead data and contact enrichment tools, Lead411 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, Lead411 lists verified emails and direct dials and bombora intent data, 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 Lead411 at $49/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
Lead411 is B2B lead intelligence platform with verified emails, direct dials, growth intent data, and unlimited search capabilities.
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
Spark
Free
Lead411 Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Spark | $49/mo | 1000 Exports / Month |
| Ignite | $150/mo | 1000+ Exports / Month |
Source: Lead411 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 $49/mo). Teams watching their budget will appreciate the savings, especially when starting out.
TheirStack offers 4 pricing tiers compared to Lead411's 2, giving you more granularity as you scale.
TheirStack includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Verified emails and direct dials
- Bombora intent data
- Growth intent signals
- Unlimited email views
- Chrome extension for LinkedIn
- CRM enrichment
- and 4 more listed below
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- and 2 more listed below
Lead411 Key Features
- Verified emails and direct dials
- Bombora intent data
- Growth intent signals
- Unlimited email views
- Chrome extension for LinkedIn
- CRM enrichment
- Advanced search filters
- Sales intelligence alerts
- CSV export
- 7-day free trial with 50 leads
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 Lead411
- Verified emails and direct dials
- Bombora intent data
- Growth intent signals
- Unlimited email views
- Chrome extension for LinkedIn
- CRM enrichment
- Advanced search filters
- Sales intelligence alerts
- CSV export
- 7-day free trial with 50 leads
Listed only by TheirStack
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
Lead411 Integrations
Lead411 connects with: Salesforce, HubSpot, Zoho CRM, Pipedrive, Outreach, SalesLoft, Zapier, Make.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Shared Integrations
Both tools integrate with: Zapier, Make.
Integrations listed only by Lead411: Salesforce, HubSpot, Zoho CRM, Pipedrive, Outreach, SalesLoft.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, N8N.
Use Case Recommendations
Best Fit for Lead411
- Budget-conscious teams looking for an affordable data enrichment tool
- Teams that need a wide feature set (10 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (8 integrations)
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 | Lead411 | TheirStack |
|---|---|---|
| Starting Price | $49/mo | Free |
| Top Tier Price | $150/mo | Contact Sales |
| Total Features Listed | 10 | 8 |
| Integrations | 8 | 5 |
| Founded | 2001 | 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
Lead411 and TheirStack both serve the B2B lead data and contact enrichment market. TheirStack offers a more accessible entry point, while Lead411 starts at $49/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 Lead411 and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- Which is cheaper, Lead411 or TheirStack?
- TheirStack has the lower entry point at $0/mo with its free tier, compared to Lead411's Spark plan at $49/mo. TheirStack also offers a $49/mo API, Webhooks and MCP plan and usage-based pricing for its App plan, while Lead411's top tier, Ignite, costs $150/mo.
- What features does Lead411 offer that TheirStack does not list?
- Lead411 lists verified emails and direct dials, Bombora intent data, growth intent signals, unlimited email views, a Chrome extension for LinkedIn, CRM enrichment, advanced search filters, sales intelligence alerts, CSV export, and a 7-day free trial with 50 leads. These appear only on Lead411's own feature list, not TheirStack's.
- What features does TheirStack offer that Lead411 does not list?
- TheirStack lists job search, company search, company lookup, enrichment, exports, email alerts, webhooks, and an MCP server. These appear only on TheirStack's own feature list and not on Lead411's list.
- Which integrations do Lead411 and TheirStack have in common?
- Lead411 and TheirStack both integrate with Zapier and Make. Beyond that, Lead411 also connects with Salesforce, HubSpot, Zoho CRM, Pipedrive, Outreach, and SalesLoft, while TheirStack additionally connects with Clay, LinkedIn Audiences, and N8N.
- Who should choose TheirStack over Lead411?
- TheirStack is a good fit for budget-conscious teams that want to start free and scale up as needs grow, as well as enterprise buyers who prefer custom pricing and dedicated support. It is best suited for teams focused on job posting and technographics data rather than verified emails and direct dials.
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
Connect on LinkedIn →Explore more.
Ready to scale your outreach?
We build GTM engines that book real meetings. See the receipts.
Related articles.
Apollo.io vs Proofy: Data Enrichment Tool Comparison
Compare Apollo.io and Proofy side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
AroundDeal vs Leadspicker: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare AroundDeal (data enrichment tool) and Leadspicker (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
AroundDeal vs Salesflare: Data Enrichment Tool vs CRM Platform Comparison
Compare AroundDeal (data enrichment tool) and Salesflare (CRM platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Gong vs NeverBounce: Sales Engagement Platform vs Data Enrichment Tool Comparison
Gong vs NeverBounce: what Gong's own pages say about enrichment, what NeverBounce's API returns about an address, and how each vendor prices.
ContactOut vs Luru: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare ContactOut (data enrichment tool) and Luru (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Evaboot vs Microsoft Dynamics 365 Sales: Data Enrichment Tool vs CRM Platform Comparison
Compare Evaboot (data enrichment tool) and Microsoft Dynamics 365 Sales (CRM platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.