Find candidates with hidden experience in a niche technology
Find people who use a niche platform every day by first finding the companies that run it, then searching their staff by title.
Who it's for: A recruiting agency, staffing firm or executive search practice that recruits from the small pool of people who know a niche platform.
Toyota posted a Workday HRIS Analyst role · 4h agoPrerequisite technology
Shell is hiring engineers who work in Palantir Foundry · 1d agoPrerequisite technology
Samsung posted a Guidewire Developer role · 2d agoPrerequisite technology
How sourcing candidates by technology works
TheirStack starts candidate sourcing for a niche platform with the companies that run it: it finds them from their job posts, shows the titles they hire for it, and hands you the list to search their staff, who often use the platform every day without listing it on their profile.
Find
Map the companies that run the platform
TheirStack finds every company that names the platform in its job posts, in the location you recruit for.
- Technologies found in job posts
- Filter by country and company size
- Niche platforms such as Workday or Guidewire
Learn
Learn the titles that use it
TheirStack shows the job titles each company hires for the platform, so you know which roles to search for.
- Titles from real job posts
- Titles change from company to company
- Daily users often leave it off their profile
Titles hired for Workday
ToyotaWorkday HRIS Analyst3 postsShellPayroll Systems Lead2 posts
SiemensHR Systems Manager1 postSource
Search their staff by title
TheirStack exports the companies with their domains, or opens them in Find people, so you filter current employees by company and title.
ToyotaConfigures Workday HCM daily · 4h agoStrongShellRuns payroll on Workday · 1d agoStrongSiemensWorkday named in one post · 3d agoGoodSignals that work for this
Learn how
- Guide
Find hidden candidates with niche technology experience
Use TheirStack technographic data to identify companies using a specific platform in your target market, then cross-reference with LinkedIn Recruiter to surface candidates whose hands-on expertise doesn't appear on their profile.
Find candidates with hidden experience in a niche technology: 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 use case 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_or": ["workday"], "company_country_code_or": ["GB"] }'
Claude
ChatGPT
Cursor
VS Code
Windsurf
Cline
OpenCode
Gemini
Hermes
OpenClaw
Clay
n8n
Make
Zapier
Databar
Salesforce
HubSpot
Attio
Pipedrive
Apollo
Instantly
ContactOutThe people you need work at the companies running the tool.
Find every company running a niche platform, then search their staff for the people who use it every day.
Start free: 200+ free credits.