Outreach vs TheirStack: Sales Engagement Platform vs Data Enrichment Tool Comparison
Compare Outreach (sales engagement platform) and TheirStack (data enrichment tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Outreach and TheirStack solve different problems: Outreach is a sales engagement platform for multi-channel outreach and engagement tracking, while TheirStack is a data enrichment tool for B2B lead data and contact enrichment. Outreach uses custom pricing with no published entry rate, while TheirStack offers a free tier. Many teams use both together rather than choosing one.
Key takeaways
- Outreach's Amplify Essentials plan is listed as Contact Sales with 10,000 AI Credits, while TheirStack's Free plan includes 50 company credits and 200 API credits per month.
- TheirStack offers 4 pricing tiers (Free, App, API/Webhooks/MCP at $49/mo, and Datasets), compared to Outreach's single listed tier.
- Outreach lists 10 features including multi-channel engagement and sequences, AI-powered email generation, and revenue forecasting with scenario planning.
- TheirStack lists 8 features including job search, company search, enrichment, webhooks, and an MCP server.
- Outreach integrates with 12 tools including Salesforce, HubSpot, Gong, and Slack, while TheirStack integrates with 5 tools including Clay, Make, N8N, and Zapier.
Reviewed and updated September 4, 2026
Outreach vs TheirStack: Sales Engagement Platform vs Data Enrichment Tool Comparison
Sales teams building an outbound stack often weigh Outreach, a sales engagement platform for multi-channel sales outreach and engagement tracking, against TheirStack, a data enrichment tool for B2B lead data and contact enrichment. They cover different parts of the workflow, so this comparison covers what each one does, what each one costs, and where they overlap.
The Quick Answer
Outreach is a sales engagement platform for multi-channel sales outreach and engagement tracking; TheirStack is a data enrichment tool for B2B lead data and contact enrichment. By each vendor's own wording, Outreach lists multi-channel engagement and sequences and ai-powered email generation and optimization, and TheirStack lists job search and company search.
TheirStack publishes an entry price of $0/mo; Outreach uses custom pricing, so the two cannot be compared on list price.
If your priority is coordinating outreach across email, phone, and social channels, Outreach 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
Outreach is Enterprise sales engagement platform with multi-channel sequences, AI-powered deal insights, revenue forecasting, and conversation intelligence for scaling outbound sales teams.
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
Amplify Essentials
Free
Outreach Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Amplify Essentials | Contact Sales | 10,000 AI Credits |
Source: Outreach 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
One or both platforms use custom or contact-based pricing for some tiers. Reach out to their sales teams for exact quotes based on your usage needs.
TheirStack offers 4 pricing tiers compared to Outreach's 1, giving you more granularity as you scale.
TheirStack includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Multi-Channel Engagement and Sequences
- AI-powered email generation and optimization
- Conversation intelligence with call recording
- Deal health scoring and pipeline management
- Revenue forecasting with scenario planning
- Real-time analytics and reporting dashboards
- and 4 more listed below
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- and 2 more listed below
Outreach Key Features
- Multi-Channel Engagement and Sequences
- AI-powered email generation and optimization
- Conversation intelligence with call recording
- Deal health scoring and pipeline management
- Revenue forecasting with scenario planning
- Real-time analytics and reporting dashboards
- Sales rep coaching and performance insights
- Automated task management and reminders
- A/B testing for email templates
- Governance and compliance controls
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 Outreach
- Multi-Channel Engagement and Sequences
- AI-powered email generation and optimization
- Conversation intelligence with call recording
- Deal health scoring and pipeline management
- Revenue forecasting with scenario planning
- Real-time analytics and reporting dashboards
- Sales rep coaching and performance insights
- Automated task management and reminders
- A/B testing for email templates
- Governance and compliance controls
Listed only by TheirStack
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
Outreach Integrations
Outreach connects with: Salesforce, Microsoft Dynamics 365, HubSpot, Gmail, Microsoft Outlook, LinkedIn Sales Navigator, Gong, Chorus, Drift, 6sense, Zoom, Slack.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Integrations listed only by Outreach: Salesforce, Microsoft Dynamics 365, HubSpot, Gmail, Microsoft Outlook, LinkedIn Sales Navigator, Gong, Chorus, Drift, 6sense, Zoom, Slack.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Use Case Recommendations
Best Fit for Outreach
- Teams that need a wide feature set (10 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (12 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 | Outreach | TheirStack |
|---|---|---|
| Starting Price | Contact Sales | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 10 | 8 |
| Integrations | 12 | 5 |
| Founded | 2014 | 2021 |
Getting Started Checklist
- Define your multi-channel sales outreach and engagement tracking and B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected sequences and engagement actions 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
Outreach serves the multi-channel sales outreach and engagement tracking side of an outbound stack and TheirStack the B2B lead data and contact enrichment side. TheirStack publishes an entry price (a free tier), while Outreach uses custom pricing for its plans, so compare on features and on the quote you receive. 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 Outreach and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Outreach and TheirStack?
- Outreach is a sales engagement platform built for multi-channel sales outreach and engagement tracking, while TheirStack is a data enrichment tool built for B2B lead data and contact enrichment. They cover different parts of the outbound workflow, so many teams use both rather than choosing one over the other.
- How much does Outreach cost compared to TheirStack?
- Outreach uses custom pricing through its Amplify Essentials plan, which is listed as Contact Sales with 10,000 AI Credits, so there is no published entry price. TheirStack offers a Free plan with 50 company credits and 200 API credits per month, plus a paid API/Webhooks/MCP tier at $49 per month and a usage-based App tier.
- Does TheirStack have a free plan?
- Yes, TheirStack includes a free tier that provides 50 company credits and 200 API credits per month, which is helpful for evaluating the platform without upfront cost. Outreach does not publish an equivalent free tier and instead requires contacting sales for pricing.
- Which integrations does each platform support?
- Outreach connects with 12 tools including Salesforce, Microsoft Dynamics 365, HubSpot, Gmail, Microsoft Outlook, LinkedIn Sales Navigator, Gong, Chorus, Drift, 6sense, Zoom, and Slack. TheirStack connects with 5 tools: Clay, LinkedIn Audiences, Make, N8N, and Zapier.
- Should a sales team use Outreach or TheirStack, or both?
- It depends on the priority: Outreach is built for coordinating outreach across email, phone, and social channels, while TheirStack is built for finding accurate contact data for target accounts. The article notes that many teams run one of each rather than picking a single tool.
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.
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.
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.
Enrich Layer vs La Growth Machine: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare Enrich Layer (data enrichment tool) and La Growth Machine (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Leadspicker vs NeverBounce: Sales Engagement Platform vs Data Enrichment Tool Comparison
Compare Leadspicker (sales engagement platform) and NeverBounce (data enrichment tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
11x vs Adapt.io: Sales Engagement Platform vs Data Enrichment Tool Comparison
Compare 11x (sales engagement platform) and Adapt.io (data enrichment tool). See pricing, features, and integrations to decide which one, or both, your stack needs.