Category adoption
Companies using tools in the broader category you serve.
Klarna is replacing its CRM now · 2h agoCompetitor displacement
Stripe runs the stack you plug into · 4h agoIntegration fit
Siemens has the base your product builds on · 5h agoPrerequisite technology
Amazon is investing in the tool right now · 3h agoTech plus use case
Lovable has no tool for this yet · 5h agoStack gap
Why it works
Searching a whole category shows every company already buying in your space, including those on vendors you don't track. You see the size of the market before you narrow it, and you catch the accounts a list of named competitors would miss.
How to act on it
Build a category-aware account list before narrowing to named vendors.
Category adoption: integrations with AI assistants, automations and CRMs
TheirStack works with the AI assistants, automation tools and CRMs you already use: ask Claude or ChatGPT through the MCP server, send new matches to Clay, n8n, Make or Zapier by webhook, and create leads in Salesforce or HubSpot.
AI assistants
Ask Claude, ChatGPT, Cursor or any MCP client to search jobs, companies and tech stacks through the TheirStack MCP server.
MCP server
https://api.theirstack.com/mcpAutomations
TheirStack sends every new matching company by webhook as soon as it finds it, to your automation platform or through it into your CRM and sales tools.
CRMs and sales tools
Run this signal from your own code
curl -X POST https://api.theirstack.com/v1/companies/search \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "tech_filters": {"keyword_category_slug_or":["crm-platforms"]} }'
Use cases
- Outbound
Find companies by the data they hold
Find the companies sitting on the kind of internal data you need, such as support tickets, sales records or product analytics, from the software that produces it.
See the use case → - Outbound
Find the accounts to launch in a new country
Build the list of companies to target when you launch your own product in a new country, from the roles they hire and the technology they run there.
See the use case → - Enrichment
Enrich a company list with technographic data
Add technology columns to the companies in your CRM or list, to segment, score and personalize outreach.
See the use case → - Embedded data
Power company search in your product
Let your users find companies by who is hiring for a role and what technology they run, inside your own company search.
See the use case → - Enrichment
Monitor a target account list for new signals
Get alerted when one of your named accounts starts hiring for a technology or shows intent for a topic, so your team acts while it is fresh.
See the use case → - Outbound
Find companies to target with your ads
Turn companies hiring for a role or running a technology into ad audiences and campaign segments, so your ads reach accounts with a live reason to buy.
See the use case → - Market research
Measure the size of a market from its hiring
Size a market or map a category from the companies hiring for it, counted bottom-up from their job ads.
See the use case → - Market research
Measure how a technology's adoption changes over time
Measure how many companies take up a technology month by month, against its rivals and by country, from when it first appears in their job ads.
See the use case →
Related signals
Role-based hiring
Hiring the role that owns, uses, or feels the pain your product solves.
ExampleFirst Head of RevOps role posted
Your buyer's problem gets an owner
Category keyword
The company mentions a product category such as ERP, CRM, HRIS, or POS without naming a vendor.
Example"Help us select and roll out a new ERP" in an IT role
An ERP purchase is open, no vendor chosen
Vertical or industry fit
Job descriptions reveal the vertical the company serves or operates in.
Example"Experience with clinical trial data" across 6 roles
They work in life sciences
Every company buying in your category, in one list.
Find the companies using tools in the category you serve, then narrow to the vendors you replace or work with.
Start free: 200+ free credits.
Hermes
OpenClaw
Clay
n8n
Make
Zapier
Databar
Salesforce
HubSpot
Attio
Pipedrive
Apollo
Instantly
ContactOut