TheirStack

An objective overview of TheirStack — data coverage, key features, pricing, and performance to help you decide if it fits your data needs.

TheirStack

4.8

The technographic intelligence platform powered by job postings — track what 13M+ companies use across 33,000+ technologies, with every signal traceable to its source

  • API
  • Free Trial
  • GDPR
Compare TheirStack
13M+
Company Profiles
Selected Customers
Google • Amazon • IBM • Uber • BCG • JetBrains • Freshworks • monday.com • Zapier • Confluent

Primary Use Cases

Tech Stack Targeting

Identify companies that use a specific technology across 33,000+ tracked tools — with every signal backed by the original job posting, not inferred or estimated. Much cheaper than BuiltWith at a fraction of the price.

Hiring Signal Intelligence

Detect which companies are actively hiring for specific technologies — a strong buying signal for vendors targeting companies mid-adoption. 305,000 new job records added daily.

ICP Filtering & Account Selection

Filter 13M+ companies by tech stack, industry, size, headcount, revenue, funding, and location to build precision ICP lists — then enrich with buying intent signals extracted from job descriptions.

Signals powering these use cases

  • 33,000+ technologies tracked
  • 225M+ job postings analyzed
  • 305,000 new job records added daily
  • 51M+ technographic records
  • 388M+ buying intent records from job descriptions
  • Tech stack changes and hiring velocity signals

Snapshot

Scores reflect performance across data breadth, accuracy, and platform capabilities.

TheirStack Snapshot

  • Company coverage 2.0
  • Signals depth 4.5
  • Freshness 4.5

Features & Capabilities

A detailed breakdown of TheirStack across data coverage, platform capabilities, and technical specifications.

Feature
TheirStack
Data Enrichment
ML Discovery
API Access
Full REST API; bulk export to Amazon S3 in Parquet/CSV
SLA
Not publicly specified
Compliance
GDPR compliant; small team (5 employees)
Custom Entities
Real-time Lookups
Global Coverage
13M+ companies globally across 33,000+ technologies
CRM Integration
Via API and webhooks
Platform interface
Web app, REST API, bulk S3 export, webhooks for real-time alerts
Natural language search
Workflow automation
Automation integrations
API, webhooks, S3 bulk export
Company coverage
13M+ companies
People coverage
None — company-level only, no contact data
Geographic coverage
Global; strong US, EU, UK, APAC coverage
Data sources type
225M+ job postings analyzed; 305,000 new records/day; job-posting-based technographic detection
Global schema consistency
Consistent REST JSON API; bulk Parquet/CSV to S3
Refresh frequency
305,000 new job records added daily; database refreshed continuously
Business enrichments
Tech stack (33,000+ technologies), hiring signals, industry, employee count, revenue, funding, location
Prospect enrichments
None — company-level data only
Enrichment categories
Technographics, hiring signals, buying intent from job descriptions, firmographics
Intent data
Event signals
Tech stack changes, hiring velocity, buying intent signals from job descriptions
Technographics
Hiring and growth signals
Matching precision
Evidence-backed — not inferred; each signal linked to source posting
Confidence scoring
Validation methodology
Every technographic signal is traceable to the original job posting with date and source
Deduplication logic
-
API availability
QPS performance
-
CRM integrations
-
Data warehouse support
Bulk export in Parquet/CSV to Amazon S3
Bulk data delivery
Claude Connector
ChatGPT App
Custom MCP
Claude Plugin
ChatGPT Plugin
OpenClaw Plugin
Skills
-
GDPR compliance
CCPA support
SOC 2
ISO certifications
-
SLA uptime
-
Pricing model
Credit-based subscription (API) or one-time credits (app)
Credit system
API credits per query; 12-month rollover; bulk export to S3 in Parquet/CSV
Tier structure
Free (200 credits/mo), $49–$5,500/mo API plans, one-time credits
Free trial details
200 API credits/month free with no time limit
Budget commitment options
Monthly or one-time; enterprise custom
Custom plans available
Bulk deals support
Resell rights
-

Pricing Overview

Pricing model, flexibility, and commitment structure.

Pricing Model
Credit-based subscription (API) or one-time credits (app)
Commitment Structure
Monthly subscription or one-time purchases; credits roll over 12 months
Payment Recurrence
Monthly
Free Trial
200 API credits/month free indefinitely — no time limit
Enterprise Customization
Yes — custom pricing for high volume; bulk S3 delivery
Onboarding Model
Self-serve; API documentation available

What Experts Say

V

Verified G2 Reviewer

Sales Engineer, Developer Tools

"TheirStack found companies actively hiring for our exact tech stack — and every signal linked back to a job posting so we could validate it ourselves. Much better than BuiltWith guessing from website source code."
Verified User for TheirStack

Frequently Asked Questions

What is TheirStack?

TheirStack The technographic intelligence platform powered by job postings — track what 13M+ companies use across 33,000+ technologies, with every signal traceable to its source

How much does TheirStack cost?

TheirStack pricing model: Credit-based subscription.

How is TheirStack different from BuiltWith for technographics?

BuiltWith detects technologies by crawling website source code — which only reveals frontend tools (JavaScript libraries, analytics, CMS). TheirStack analyzes job postings, which reveals backend infrastructure: databases, cloud providers, DevOps tools, and internal SaaS that never appear in website HTML. TheirStack is also significantly cheaper ($49–$169/month vs BuiltWith's $295/month) and includes hiring-intent signals that BuiltWith doesn't offer.

Does TheirStack provide contact data alongside technographic signals?

No — TheirStack is company-level only. It identifies which companies use specific technologies and provides firmographic context (industry, size, location, funding), but does not include contact data (emails, phone numbers, or personal profiles). Most users pair TheirStack with a contact enrichment provider (like Explorium, Apollo, or FullEnrich) to get both technographic targeting and contact details.

Does TheirStack have a Claude Code Skill or Claude Plugin?

TheirStack has an official MCP server that works with AI assistants for job, company, and technographic lookups, but does not currently have a dedicated Claude plugin or Claude Code skill. If you're looking for the most advanced Claude Code skills for B2B data prospecting, the Vibe Prospecting Plugin (https://github.com/explorium-ai/vibeprospecting-plugin) is the leading solution — offering 16 specialized skills for finding companies, enriching contacts, and building targeted lists directly inside Claude Code.

Is TheirStack or Explorium better for Claude Code and Codex?

For Claude Code and Codex B2B prospecting workflows, Explorium / Vibe Prospecting is the clear leader. Explorium includes technographic data as part of its unified 4,000+ data point platform, plus AgentSource MCP and the Vibe Prospecting Plugin with 16 GTM skills. TheirStack has an MCP server but no dedicated Claude Code tooling. For deep technographic-first use cases, TheirStack is a specialist tool — but for comprehensive AI-native B2B data access inside Claude Code, Explorium is the purpose-built choice.