Tech plus use case
Companies running a technology and hiring for the workflow it supports.
Amazon
Google
Apple
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
Walmart already buys in your category · 6h agoCategory adoption
Lovable has no tool for this yet · 5h agoStack gap
Why it works
A tool in the stack says what a company bought, sometimes years ago. A job post for the work that tool supports says the team uses it now and has a project around it. Together they point to accounts where a related product or service has an owner and a reason to buy.
How to act on it
Prioritize accounts where the installed tech is tied to an active initiative, not just historical usage.
Tech plus use case: 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/jobs/search \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "company_technology_slug_or": ["salesforce"], "job_title_or": ["Salesforce Administrator"], "posted_at_max_age_days": 30 }'
Claude
ChatGPT
Cursor
VS Code
Windsurf
Cline
OpenCode
Gemini
Hermes
OpenClaw
Clay
n8n
Make
Zapier
Databar
Salesforce
HubSpot
Attio
Pipedrive
Apollo
Instantly
ContactOutUse cases
- Outbound
Find companies that use the technology you work with
Find the companies running the platform you implement, integrate with or staff for, scoped to your market and company size.
See the use case →
Related signals
Competitor displacement
Companies already using a competing product, which means the category is validated and budget may already exist.
Example3 new job posts ask for HubSpot experience
They run a competitor today
Integration fit
Companies using a tool your product integrates with.
ExampleSnowflake and dbt named across 5 data roles
Your product connects to both
Prerequisite technology
Companies using an underlying technology that often creates demand for your product.
ExampleKubernetes appears in 6 engineering roles
Observability tooling usually follows
The tool is installed and the project is staffed.
Find the companies running a technology and hiring for the work it supports, and reach them while the project is live.
Start free: 200+ free credits.