Technographics API
Know your prospects' tech stack
- Reveal the tech stack of 11M companies across 195 countries
- Find companies using any of 32k technologies
- Get notified immediately when new companies start using a technology
- Technologies tracked
- 32k
- companies
- 11M
- Tech records
- 49M
Trusted by industry leadersTrusted by the world's most innovative sales and marketing teams
API Use Cases
Start querying in minutes
Two endpoints to cover the most common technographic lookups — get a company's stack or find companies by technology.
Get the Tech Stack of a Company
Look up any company by domain and get their full technology stack — including confidence scores, mention counts, and first/last seen dates.
View API docs$ curl -X POST \
"https://api.theirstack.com/v1/companies/technologies" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{ "company_domain": "stripe.com" }'Get Companies Using a Technology
Search for companies by technology stack. Find all companies using Kubernetes, React, Snowflake, or any of the 33,000+ technologies we track.
View API docs$ curl -X POST \
"https://api.theirstack.com/v1/companies/search" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{ "company_technology_slug_or": ["kubernetes"] }'Data Quality
Built for accuracy and depth
Every signal is traceable, scored for confidence, and enriched with company and technology metadata.
33k+ Technology Catalog
From programming languages and frameworks to CRMs, ERPs, and cloud infrastructure — we track 33,000+ technologies across every category.
Explore catalog49M+ Tech Signals
Detect technology adoption changes as they happen. Our platform processes new technographic signals every minute from millions of job postings worldwide.
Learn about signals11M+ Company Database
Access technographic profiles for over 11M companies worldwide. Each profile includes the full technology stack with confidence scores and historical data.
Explore companiesTraceable to Source
Every technology signal links back to the original job postings. Verify any detection with direct access to the evidence — company, date, and job description.
How we source dataConfidence Scoring
Our three-tier confidence model (low, medium, high) estimates how likely it is a company actually uses a technology, based on mention volume, frequency, location, and recency.
How scoring worksUse Cases
What teams build with technographic data
From prospecting to account enrichment, technographic data helps sales, marketing, and product teams target the right companies.
Find companies using must-have technologies
Target accounts that already use a technology your product requires — so every prospect in your pipeline is a high-fit opportunity from day one.
See howIdentify competitor customers
Build lists of companies using competitor tools, tailor your positioning around switching costs and gaps, and prioritize accounts already paying for a similar solution.
See howTarget companies using partner tools
Find accounts using tools your product integrates with — accounting, payments, CRMs — and convert faster with a clear "works with your stack" message.
See howDiscover a company's tech stack
Look up any company to see what technologies they use — from backend infrastructure and DevOps to internal tools — using job-posting-based technographic data.
See howEnrich accounts with technology data
Verify whether a company uses a specific technology or category to enrich accounts, segment leads, and personalize outreach at scale.
See howMonitor technology adoption changes
Track when companies adopt or drop technologies to spot migration windows, expansion signals, and competitive displacement opportunities in real time.
Learn moreAPI Features
Powerful filtering built in
Filter by technology, category, company size, and more to get exactly the technographic data you need from a single API call.
Advanced Filtering
Easily find and filter technology data by confidence level and category, and access key company attributes such as HQ location, employees, industry, and website.
See all filtersFrequently asked questions