Enginy vs TheirStack: Sales Engagement Platform vs Data Enrichment Tool Comparison
Compare Enginy (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.
Enginy is a sales engagement platform built for multichannel outreach and engagement tracking, while TheirStack is a data enrichment tool built for B2B lead data and contact enrichment. TheirStack publishes a free entry tier and a $49 per month plan; Enginy uses custom, contact sales pricing. Many teams run both.
Key takeaways
- Enginy uses custom, contact sales pricing with no published tiers, while TheirStack offers four pricing tiers.
- TheirStack's free plan includes 50 company credits and 200 API credits per month.
- TheirStack's API, Webhooks and MCP plan costs $49 per month for 1,500 API credits per month.
- Enginy lists 10 features and 12 integrations, compared to TheirStack's 8 features and 5 integrations.
- TheirStack was founded in 2021; Enginy's founding date is not published.
Reviewed and updated September 4, 2026
Enginy vs TheirStack: Sales Engagement Platform vs Data Enrichment Tool Comparison
Enginy is a sales engagement platform; TheirStack is a data enrichment tool. Whether you need one, the other, or both depends on which part of the workflow you are buying for: multi-channel sales outreach and engagement tracking on one side, B2B lead data and contact enrichment on the other. This guide lays out what each vendor publishes.
The Quick Answer
Enginy 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, Enginy lists find b2b contacts and companies and verified phones and emails, and TheirStack lists job search and company search.
TheirStack publishes an entry price of $0/mo; Enginy uses custom pricing, so the two cannot be compared on list price.
If your priority is coordinating outreach across email, phone, and social channels, Enginy 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
Enginy is All-in-one sales platform that finds B2B contacts and companies through an AI chat interface, pulls verified phones and emails from more than 20 providers, and runs personalized multichannel outreach campaigns from one place. Includes social prospecting, intent signals, CRM sync, warmup and a smart inbox.
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
Custom
Free
Enginy Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Custom | Contact Sales | Custom plan built per customer | Not published |
Source: Enginy 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 Enginy'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
- Find B2B contacts and companies
- Verified phones and emails
- Multichannel Outreach
- Social Prospecting
- Intent Signals
- AI Powered Research
- and 4 more listed below
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- and 2 more listed below
Enginy Key Features
- Find B2B contacts and companies
- Verified phones and emails
- Multichannel Outreach
- Social Prospecting
- Intent Signals
- AI Powered Research
- CRM Sync
- Warm Up & Deliverability
- Smart Inbox
- Reach prospects at scale
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 Enginy
- Find B2B contacts and companies
- Verified phones and emails
- Multichannel Outreach
- Social Prospecting
- Intent Signals
- AI Powered Research
- CRM Sync
- Warm Up & Deliverability
- Smart Inbox
- Reach prospects at scale
Listed only by TheirStack
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
Enginy Integrations
Enginy connects with: HubSpot, Salesforce, Pipedrive, Microsoft Dynamics, Zoho, Apollo, Cognism, Dropcontact, Hunter, Kaspr, Lusha, ZoomInfo.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Integrations listed only by Enginy: HubSpot, Salesforce, Pipedrive, Microsoft Dynamics, Zoho, Apollo, Cognism, Dropcontact, Hunter, Kaspr, Lusha, ZoomInfo.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Use Case Recommendations
Best Fit for Enginy
- 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 | Enginy | TheirStack |
|---|---|---|
| Starting Price | Contact Sales | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 10 | 8 |
| Integrations | 12 | 5 |
| Founded | N/A | 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
Enginy 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 Enginy 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 Enginy and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- Is Enginy or TheirStack cheaper?
- TheirStack publishes a free entry tier plus a $49 per month API plan, while Enginy uses custom, contact sales pricing with no published rates. Because Enginy does not list a price, the two tools cannot be directly compared on list price.
- What is the main difference between Enginy and TheirStack?
- Enginy is a sales engagement platform built for multichannel outreach and engagement tracking, while TheirStack is a data enrichment tool built for B2B lead data and contact enrichment. Many teams use one of each, running Enginy for outreach and TheirStack for finding contact data.
- Does TheirStack have a free plan?
- Yes, TheirStack's free plan includes 50 company credits and 200 API credits per month. This lets teams evaluate the platform before committing to a paid tier such as the $49 per month API, Webhooks and MCP plan.
- Which integrations does Enginy support?
- Enginy connects with HubSpot, Salesforce, Pipedrive, Microsoft Dynamics, Zoho, Apollo, Cognism, Dropcontact, Hunter, Kaspr, Lusha, and ZoomInfo. That totals 12 published integrations, more than TheirStack's 5.
- Which integrations does TheirStack support?
- TheirStack connects with Clay, LinkedIn Audiences, Make, N8N, and Zapier. That totals 5 published integrations, compared to Enginy's 12.
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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