TheirStack
TheirStack is a B2B data intelligence platform that aggregates 212 million job postings from 347,000 sources across 195 countries and infers company technology stacks, hiring intent, and buying signals for B2B sales and marketing teams, delivered via web app, APIs, bulk datasets, and AI-assistant integrations.
- Company typePrivate
- Founded2021
- HeadquartersA Coruña, Spain
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What TheirStack does
TheirStack is a B2B data intelligence platform founded in 2021 and headquartered in A Coruña, Spain, that aggregates and analyzes job postings to produce sales and marketing intelligence. The company ingests 212 million job postings from approximately 347,000 sources across 195 countries — including major job boards (Indeed, LinkedIn, Glassdoor), ATS platforms (Greenhouse, Lever, Ashby, Workable), and direct company career pages — and applies inference to extract technology usage signals (technographics), hiring signals, and buying intent. Its database covers roughly 33,000 technologies, 12 million company profiles, and 48 million technology signals, with daily ingestion exceeding 342,000 jobs.
The product surface comprises three signal categories — Hiring Signals, Technographic Signals, and Buying Intent Signals — delivered through four mechanisms: a self-serve web application, REST APIs (Job Postings API, Technographics API, Buying Intents API), bulk datasets delivered via Amazon S3 in Parquet or CSV, and MCP servers enabling natural-language queries through Claude, ChatGPT, Cursor, Windsurf, and Claude Code. Differentiated features include a three-tier confidence scoring model, traceable source evidence linking every signal back to the underlying job posting, and enrichment of company profiles with size, industry, funding, location, tech stack, and 11M+ hiring-team contacts.
TheirStack runs a multi-motion GTM combining freemium product-led growth (50 company credits and 200 API credits at signup), API-first developer adoption, and dataset subscriptions targeting enterprise customers. Pricing is not publicly disclosed. Marketing displays enterprise-grade logos — Google, Amazon, IBM, Uber, BCG, Equifax, Zapier, JetBrains, monday.com — while published testimonials come from smaller customers such as Stacker, 6nomads, and Graphext. The company has not disclosed funding, ownership, or management team beyond co-founders Xoel Barata and Christian Palou.
TheirStack firmographics
Firmographics- Name
- TheirStack
- Website
- https://theirstack.com
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- TheirStack is a B2B data intelligence platform that aggregates 212 million job postings from 347,000 sources across 195 countries and infers company technology stacks, hiring intent, and buying signals for B2B sales and marketing teams, delivered via web app, APIs, bulk datasets, and AI-assistant integrations.
- Ownership category
- akta.pro rank
TheirStack industry classification
Industry- Product category
- Sales Intelligence Data Platform
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518), Computer Systems Design and Related Services (54151), Employment Services (5613)
- SIC
- Services-Computer Processing & Data Preparation (7374), Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Programming Services (7371)
- akta.pro primary industry
- Job Market Intelligence & Employer Networking Services (BPACAOAJ)
- akta.pro secondary industries
- Intelligent Document Processing (IDP) & OCR Automation (HDAEAHAC), Model Hosting, Serving & Inference Platforms (HDAAACAB)
Keywords
Where TheirStack is headquartered
LocationHeadquarters
- HQ city
- A Coruña
- HQ country
- Spain
- HQ region
- Europe
Markets served
TheirStack business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations
Revenue model
- API Access Credits: Customers consume API credits to access job and technographics data. New signups receive 50 free company credits and 200 free API credits. Pricing varies by plan tier.
- App Subscription: Self-serve web application for exploring, searching, and analyzing job and technographics data with a user-friendly interface. Teams share billing plans, saved searches, and company lists.
- Dataset Subscriptions: Bulk access to complete datasets (jobs, closed jobs, technographics, companies) delivered as Parquet or CSV files. Flexible update frequency from hourly to quarterly, delivered via S3 bucket access.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Free Trial - 50 company credits and 200 API credits |
| Usage-based | Monthly | API Plans - Credits-based access |
| Subscription | Monthly | Dataset Plans - Bulk data access |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels5 records
TheirStack product offering
Product offeringCore offering
TheirStack aggregates job postings from 347k sources globally (including Indeed, LinkedIn, and direct ATS feeds from Greenhouse, Lever, Ashby, Workday, and Teamtailor) and infers technology usage (technographics) from job descriptions to build a comprehensive database of company technology stacks, hiring activity, and buying-intent signals. The platform exposes these signals through a self-serve web application for exploratory search, REST APIs for programmatic access, bulk S3 datasets (Parquet/CSV) updated daily for data teams, and Model Context Protocol (MCP) servers that let AI assistants query job data in natural language. Coverage spans 212M historical jobs across 195 countries, 33k tracked technologies, and 12M companies, with daily ingestion of 342k+ new jobs.
Product overview
TheirStack is a B2B data intelligence platform that aggregates and transforms job postings into actionable sales signals. The platform offers a unified product portfolio consisting of three core signal types (Hiring Signals, Technographic Signals, and Buying Intent Signals) accessible through four delivery mechanisms: a web Application for exploratory search, REST APIs for programmatic access (Job Postings API, Technographics API, Buying Intents API), Dataset products for bulk data access, and MCP servers for AI assistant integration. The platform covers 212M job postings from 195 countries, 33k tracked technologies, and 12M companies, providing sales and marketing teams with real-time intelligence on prospects' technology stacks, hiring activities, and pain points.
Differentiator
Problem solved
Functional benefit
Products and services
- Job Postings API
- Technographics API
- Buying Intents API
- Jobs Dataset
- Technographics Dataset
- Job Posting MCP Server
Quantifiable outcome
- 35% decrease in research time
- +3 more outcomes
Companies that use TheirStack
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles3 records
TheirStack technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration8 records
AI capability5 records
Feature8 records
TheirStack partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core.
- IndeedcoreJob posting data source aggregator. TheirStack pulls job listings from Indeed as one of 347k data sources to build its comprehensive job database of 212M postings.
- LinkedIncoreJob posting data source. TheirStack aggregates job listings from LinkedIn as part of its multi-source job aggregation strategy.
- GlassdoorcoreJob posting data source. Glassdoor job listings integrated into the 347k source aggregation network.
- GreenhousecoreATS platform data source. TheirStack aggregates job postings from Greenhouse ATS platform as one of its 347k sources.
- LevercoreATS platform data source. Job postings from Lever ATS integrated into the comprehensive job database.
- AshbycoreATS platform data source. Job data sourced from Ashby ATS platform as part of the 347k source network.
- WorkablecoreATS platform data source. Job postings aggregated from Workable ATS platform.
- IndeedcoreJob board data source. Indeed job listings are aggregated as one of 347k sources in TheirStack's database.
- Amazon S3coreDataset delivery infrastructure. TheirStack delivers bulk data (jobs, technographics, companies) via Amazon S3 bucket with programmatic credential access for enterprise customers.
Scale indicators9 records
Recent moves6 records
Expansion highlights6 records
TheirStack competitors and assessment
Company assessmentDirect peers
- Lusha: Lusha delivers B2B contact and company data, including technographic and intent signals, via a self-serve web app and API. TheirStack competes on technographic and intent coverage but emphasizes deeper hiring-derived signal depth over contact data.
- HG Insights: HG Insights is the leading technographic intelligence vendor, tracking technology adoption across millions of companies for sales, marketing, and product strategy. TheirStack's technographic API and dataset compete directly with HG Insights but at a more developer-friendly, self-serve price point.
- Apollo.io: Apollo.io combines a B2B contact database with buying intent signals and enrichment APIs targeting sales development teams. Both companies sell usage-based data access to SDRs and RevOps, making Apollo a close functional peer despite its broader contact-data breadth.
- Cognism: Cognism provides B2B sales intelligence with buying intent signals and prospecting data, particularly strong in EMEA. TheirStack shares the use-case fit (intent-driven prospecting) and EMEA presence, but competes on data freshness and pricing rather than human-verified phone numbers.
Broad incumbents
- Demandbase: Demandbase is an account intelligence and ABM platform incorporating firmographic, technographic, and intent data. TheirStack competes on the technographic and intent layers but lacks the broader ABM execution stack Demandbase sells.
- ZoomInfo: ZoomInfo is the dominant B2B sales and marketing intelligence platform, offering technographic, hiring, and intent data alongside contact databases. TheirStack competes with ZoomInfo's technographic and intent offerings but is a smaller, focused specialist targeting developer and AI-first buyers.
- 6sense: 6sense specializes in account-level buying intent and AI-driven prioritization for B2B revenue teams, incorporating technographic and intent signals. TheirStack provides overlapping buying-intent data from a job-posting signal source, positioning itself as an alternative or complementary feed.
- Bombora: Bombora is a leading intent data provider using content consumption signals aggregated from a co-op of publishers. TheirStack competes in the same buying-intent category but uses a different signal source (job postings vs content consumption), making it a complementary or substitute provider.
Others
- G2: G2 operates a B2B software marketplace whose buyer-intent signals (profile visits, comparisons, reviews) feed sales intelligence use cases adjacent to TheirStack's intent offerings. Not a direct competitor but an alternative intent-data source for the same buyers.
Emerging players
- Slintel: Slintel (acquired by 6sense) provides technographic and buying-intent data for B2B sales teams, including signals derived from hiring and technology adoption. TheirStack's technographic and intent offerings overlap directly with Slintel's core proposition.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks5 records
Key highlights7 records
Customer concentration
TheirStack social profiles
Digital presenceTheirStack financial estimates
Financial estimateRevenue estimate
Valuation estimate
TheirStack leadership team
Management profileNumber of profiles
Profiles2 records
TheirStack funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
TheirStack M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about TheirStack
What does TheirStack do?
TheirStack aggregates job postings from 347k sources globally (including Indeed, LinkedIn, and direct ATS feeds from Greenhouse, Lever, Ashby, Workday, and Teamtailor) and infers technology usage (technographics) from job descriptions to build a comprehensive database of company technology stacks, hiring activity, and buying-intent signals. The platform exposes these signals through a self-serve web application for exploratory search, REST APIs for programmatic access, bulk S3 datasets (Parquet/CSV) updated daily for data teams, and Model Context Protocol (MCP) servers that let AI assistants query job data in natural language. Coverage spans 212M historical jobs across 195 countries, 33k tracked technologies, and 12M companies, with daily ingestion of 342k+ new jobs.
Is TheirStack a public or private company?
TheirStack is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was TheirStack founded?
TheirStack was founded in 2021. It employs 1 to 10 people.
Where is TheirStack based?
TheirStack is headquartered in A Coruña, Spain, in the Europe region.
How does TheirStack make money?
Three revenue lines are on record. API Access Credits are the primary driver. The others are app Subscription and dataset Subscriptions.
Who are TheirStack's main competitors?
Direct peers on record are Lusha, HG Insights, Apollo.io and Cognism. Broad incumbents are Demandbase, ZoomInfo, 6sense and Bombora. G2 is listed as an others. Slintel is listed as an emerging player.
Does TheirStack have an API?
Yes. TheirStack offers REST APIs for Jobs and Technographics data. The Jobs API enables searching job postings across 212M jobs from 195 countries, filtering by title, location, seniority, salary, technology, company, and more. The Technographics API reveals tech stacks of 12M companies across 195 countries, finds companies using any of 33k technologies, and provides notifications when companies start using new technologies. Both APIs return structured data with normalized fields and support company enrichment endpoints. Developer documentation is at theirstack.com/en/docs/api-reference.
What industry is TheirStack in?
TheirStack's product category is Sales Intelligence Data Platform. Its primary akta.pro industry code is BPACAOAJ, Job Market Intelligence & Employer Networking Services, with a secondary code of HDAEAHAC, Intelligent Document Processing (IDP) & OCR Automation. Its NAICS code is 51821 and its SIC code is 7374.