BuiltWith and TheirStack are technographic databases that provide tools for lead generation, market research, and business intelligence.
Quick Decision Guide
Choose TheirStack if
- ✓You need to know who is using technologies that are not web technologies: CRMs, ERPs, databases, ATS, programming languages, etc.
- ✓You want to leverage Webhooks to trigger actions as soon as you detect a new technology used by a company.
- ✓You need a list of a few thousand companies and want to pay per company, without a monthly plan.
Choose BuiltWith if
- ✓You need to know who is using a specific web technology: CMSs, E-commerce platforms, payment processors, etc.
- ✓You need a very large list of companies running one or two web technologies: a month of BuiltWith Basic covers all of them.
Feature comparison
Technology Coverage
| Feature | TheirStack | BuiltWith |
|---|---|---|
| Technology Coverage | ✓Web technologies, CRMs, ERPs, databases, ATS, programming languages | Web technologies, plus the web footprint of back-office tools (an Odoo-built site, an AFAS portal) |
Data & Freshness
| Feature | TheirStack | BuiltWith |
|---|---|---|
| Data source | Job postings | Website crawling |
| Data Freshness | Daily updates from job postings | Website crawling |
| Confidence Scoring | Yes, based on job posting frequency and context | Yes, a 0–1 score with a Low/Medium/High rating per detection |
| Detection Evidence | ✓Links to the job postings that mention each technology | No evidence of why a technology was detected |
Integration
| Feature | TheirStack | BuiltWith |
|---|---|---|
| Webhook Support | ✓Yes, real-time notifications | No (email and Slack alerts) |
Filtering & Pricing
| Feature | TheirStack | BuiltWith |
|---|---|---|
| Filtering Capabilities | ✓Extensive (company countries, industries, sizes, etc.) | Country, traffic, employees, technology spend and eCommerce revenue; industry only in the web reports |
| Pricing Model | Based on number of companies returned | Monthly plans by number of technologies, companies unmetered; API lookups per credit |
What is BuiltWith?
BuiltWith is a technology profiler: it crawls websites and reports the tools it can detect from the page — analytics scripts, marketing pixels, ecommerce platforms, JavaScript frameworks, hosting and CDN providers. Around that it sells technology lookup for a single site, lists of every site using a given technology, and market-share reports.
Data sources
Our approach to sourcing tech usage data sets us apart from BuiltWith in a few key ways. BuiltWith tracks more technologies (124k+ against our 33k), and it finds them by crawling websites. We read job postings instead, which shows the CRMs, ERPs, databases and internal tools that never appear on a company's website.
Additionally, instead of tracking websites, we gather data from job postings. Each month, we collect job listings from millions of companies by monitoring company websites, job boards, and other hiring platforms. When a job listing mentions a specific technology in the title or description, it indicates that the company likely uses that technology. We then assign a confidence score (low, medium, high) based on the frequency and context of these mentions to estimate how likely the company is to use that technology.
Pricing
The two products charge for different things. BuiltWith sells list access by the month: Basic is $295 for two technologies, with every company running them included, so it costs less for very large lists of one or two web technologies. We charge for the companies your search returns, so a list of a few thousand companies costs less with us, and you can buy credits without a monthly plan.