Nymeria vs TheirStack: Data Enrichment Tool Comparison
Compare Nymeria and TheirStack side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Nymeria and TheirStack both start free, so the choice depends on features and integrations. Nymeria focuses on email data, phone data, and firmographics through a REST API and browser extensions, while TheirStack focuses on job search, company search, and technographics with integrations like Clay, Make, N8N, and Zapier.
Key takeaways
- Both Nymeria and TheirStack offer free tiers priced at $0/mo.
- Nymeria has 5 pricing tiers ranging from Free to Enterprise, while TheirStack has 4 pricing tiers.
- Nymeria's Kilo plan costs $159/mo for 1,000 credits per month.
- TheirStack's API, Webhooks and MCP plan costs $49/mo for 1,500 API credits per month.
- Nymeria integrates with 4 tools (Chrome, Edge, Firefox, LinkedIn) while TheirStack integrates with 5 tools (Clay, LinkedIn Audiences, Make, N8N, Zapier).
Reviewed and updated September 4, 2026
Nymeria vs TheirStack: Data Enrichment Tool Comparison
Sales teams evaluating B2B lead data and contact enrichment tools often narrow their shortlist to Nymeria 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, Nymeria lists email data and phone data, 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
Nymeria is People and company data provider supplying work and personal email addresses, mobile phone numbers, biographic data and company firmographics through a REST API, search and browser extensions.
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
Nymeria Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Free | Free | 5 credits every month, no credit card required to create an account |
| Nano | $39/mo | 100 credits per month |
| Micro | $79/mo | 300 credits per month |
| Kilo | $159/mo | 1,000 credits per month |
| Enterprise | Contact Sales | Custom Volume, Designated Success Manager, Priority Support |
Source: Nymeria 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.
Nymeria offers 5 pricing tiers compared to TheirStack's 4, giving you more granularity as you scale.
Both platforms offer free tiers, so you can test each one before spending anything.
Features Breakdown
- Email Data
- Phone Data
- Unlimited Team Members
- Personal emails
- Work emails
- Mobile numbers
- and 2 more listed below
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- and 2 more listed below
Nymeria Key Features
- Email Data
- Phone Data
- Unlimited Team Members
- Personal emails
- Work emails
- Mobile numbers
- Biographic data
- Company firmographics
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 Nymeria
- Email Data
- Phone Data
- Unlimited Team Members
- Personal emails
- Work emails
- Mobile numbers
- Biographic data
- Company firmographics
Listed only by TheirStack
- Job search
- Company search
- Company lookup
- Enrichment
- Exports
- Email alerts
- Webhooks
- MCP server
Integration Ecosystem
Nymeria Integrations
Nymeria connects with: Chrome, Edge, Firefox, LinkedIn.
TheirStack Integrations
TheirStack connects with: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Integrations listed only by Nymeria: Chrome, Edge, Firefox, LinkedIn.
Integrations listed only by TheirStack: Clay, LinkedIn Audiences, Make, N8N, Zapier.
Use Case Recommendations
Best Fit for Nymeria
- 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
Best Fit for TheirStack
- Budget-conscious teams looking for an affordable data enrichment tool
- Organizations with complex tech stacks needing broad integration support (5 integrations)
- 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 | Nymeria | TheirStack |
|---|---|---|
| Starting Price | Free | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 8 | 8 |
| Integrations | 4 | 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
Nymeria and TheirStack both serve the B2B lead data and contact enrichment market. Nymeria 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 Nymeria and TheirStack for current information.
Frequently asked questions.
Frequently asked questions- Which is cheaper, Nymeria or TheirStack?
- Both platforms start at the same $0/mo price point with free tiers. Nymeria's free plan gives 5 credits per month, while TheirStack's free plan gives 50 company credits and 200 API credits per month. Beyond the free tier, Nymeria's paid plans start at $39/mo and TheirStack's API plan starts at $49/mo.
- What's the main difference between Nymeria and TheirStack?
- Nymeria is a people and company data provider offering work and personal emails, mobile phone numbers, biographic data, and firmographics through a REST API, search, and browser extensions. TheirStack is a job posting and technographics database that finds companies by the technologies they use and roles they're hiring for.
- Which tool has more integrations, Nymeria or TheirStack?
- TheirStack has more integrations with 5 listed, including Clay, LinkedIn Audiences, Make, N8N, and Zapier. Nymeria has 4 integrations listed, including Chrome, Edge, Firefox, and LinkedIn.
- Is Nymeria or TheirStack better for budget-conscious teams?
- Both tools are recommended for budget-conscious teams looking for an affordable data enrichment tool, according to the use case recommendations. Both also suit teams that want to start free and scale up as needs grow, as well as enterprise buyers who prefer custom pricing and dedicated support.
- How many features does each platform list?
- Both Nymeria and TheirStack list 8 total features on their respective pages. Nymeria's features include email data, phone data, unlimited team members, and biographic data, while TheirStack's include job search, company search, enrichment, and a webhooks and MCP server.
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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