Klarna is replacing its CRM now · 2h agoCompetitor displacement
Siemens has the base your product builds on · 5h agoPrerequisite technology
Walmart already buys in your category · 6h agoCategory adoption
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
Your product is easier to adopt when it plugs into a tool the company already runs: there is less to set up, and the team that owns that tool can judge your product quickly. It also gives your outreach a concrete opening, the tool they use every day.
How to act on it
Lead with "works with your stack" and route to the relevant integration proof point.
Connect your agent
MCP server
Claude, ChatGPT, Cursor, Gemini or any MCP client
API
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 '{
"company_technology_slug_and": ["snowflake","dbt"]
}'Use 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
Prerequisite technology
Companies using an underlying technology that often creates demand for your product.
ExampleKubernetes appears in 6 engineering roles
Observability tooling usually follows
Tech plus use case
Companies running a technology and hiring for the workflow it supports.
ExampleRuns Salesforce and posts 2 Salesforce Administrator roles
The tool is tied to an active project
Learn how
- Guide
How to Target Companies by the Technology They Use
Learn three proven strategies for targeting companies based on their tech stack — must-have technologies, competitor customers, and partner integrations — to build high-fit prospect lists.
Frequently asked questions
See which companies match this signal today.
Run the search free, then save it to get each new match by email or webhook.