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TheirStack

theirstack.com

From $49/mo Free plan WebAPI
Visit theirstack.com
Spec score 7.8 #14 of 32 in Account Enrichment Software

What it is

TheirStack helps sales and marketing teams find companies that may need what they sell, using job postings as clues to company needs. Users can search companies by technology use across a catalog of more than 33,000 technologies, or filter job postings for keywords tied to their software’s use cases. The job-postings API covers 250 million jobs across 195 countries since 2021 and searches 362,000 other websites alongside named job boards.

The web app includes job and company search, company lookup, list enrichment, CSV or Excel exports, and daily or weekly email alerts. API plans add job search, company search, technographics and buying-intent endpoints, webhooks, and an MCP server for AI assistants. Integrations include Zapier, Make, N8N, Airtable, and contact-finding services such as Apollo, ContactOut, Instantly, and LinkedIn. TheirStack does not provide personal contact data directly, but connects to third-party providers and shows hiring-manager information for applicable jobs. Company exports are capped at 200 jobs per company; full job history is available through the Job Search API, webhooks, or MCP server. Free is available; API starts at $49 a month.

Spec sheet

What it does
TheirStack helps sales and marketing professionals find companies that may need what they sell, using job postings as a signal of company needs.Read 7 Oct 2026 · theirstack.com
Integrations
TheirStack documents connections with Zapier, Make, N8N, Airtable, and its own webhook endpoints; its contact-finding guide lists Apollo, ContactOut, Instantly, and LinkedIn integrations.Read 7 Oct 2026 · theirstack.com
Support
TheirStack asks customers with security questions not answered by its public documents to contact [email protected].Read 7 Oct 2026 · theirstack.com
Headquarters
A Coruña, SpainRead 28 Sep 2026 · theirstack.com
Founded
2021Read 28 Sep 2026 · theirstack.com
API, webhooks and MCP
API plans include job search, company search, technographics and buying-intent endpoints, webhooks, and an MCP server for AI assistants.Read 7 Oct 2026 · theirstack.com
App features
App plans include job and company search, company lookup, list enrichment, CSV or Excel exports, and daily or weekly email alerts.Read 7 Oct 2026 · theirstack.com
Buying intent
Users can define keywords tied to their software’s use cases and filter those keywords across job postings.Read 7 Oct 2026 · theirstack.com
Contact data limit
TheirStack says it does not supply personal contact data directly, but connects to third-party providers and shows hiring-manager information for applicable jobs.Read 7 Oct 2026 · theirstack.com
Dataset delivery
Jobs datasets can be delivered as JSON, CSV, or Parquet to S3, GCS, Azure Blob, Snowflake, or an HTTPS endpoint.Read 7 Oct 2026 · theirstack.com
Export limit
A company export is capped at 200 jobs per company; the company’s full job history is available through the Job Search API, webhooks, or MCP server.Read 7 Oct 2026 · theirstack.com
Job data
Its job postings API page says it covers 250 million jobs across 195 countries since 2021 and searches 362,000 other websites alongside named job boards.Read 7 Oct 2026 · theirstack.com
Security controls
Its DPA commits to TLS 1.2 or higher in transit, encryption at rest, role-based access controls, and regular security monitoring.Read 7 Oct 2026 · theirstack.com
Security status
TheirStack states it has not completed a SOC 2 audit and is not ISO 27001 certified.Read 7 Oct 2026 · theirstack.com
Technology data
The product lets users search for companies by technology usage across a catalog of more than 33,000 technologies.Read 7 Oct 2026 · theirstack.com
Who it is for
The company describes its purpose as helping sales and marketing professionals identify companies that need what they sell.Read 7 Oct 2026 · theirstack.com

Plans and prices

Free Free 50 company credits and 200 API credits every month 5 search-result pages · 25 results per page · 10 workspace invitations Read 7 Oct 2026 · theirstack.com
API $49 a month 1,500 API credits — $49 per month 4 requests per second · 500 results per page · Unlimited pages and team members · Unused credits roll over for 12 months Read 7 Oct 2026 · theirstack.com
Company credits $109, paid once 1,000 company credits — $109 one-time Unused credits roll over for 12 months · 200 jobs per company per export Read 7 Oct 2026 · theirstack.com
Datasets Priced on request Talk to sales Jobs, technographics, or buying intents datasets · History, updates, or both Read 7 Oct 2026 · theirstack.com

Every TheirStack plan and price →

Strong points and limits

Strong points

  • Search across more than 33,000 technologies.
  • API coverage spans 195 countries.
  • Free plan includes monthly credits.
  • Exports include CSV or Excel formats.
  • Jobs datasets can be delivered to cloud storage.

Limits

  • Company exports cap at 200 jobs per company.
  • Personal contact data is not supplied directly.
  • SOC 2 audit is incomplete; no ISO 27001 certification.

Who it suits

It suits sales and marketing professionals looking for companies based on hiring signals, technology use, or buying-intent keywords. Teams needing personal contact details directly from the service should note that it relies on third-party providers.

Verdict

TheirStack combines job-posting signals with technographic and buying-intent searches for company discovery. Its export cap, reliance on third-party contact providers, and stated security status are worth weighing before choosing it.

Where Specifiction places it

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