Win More Clients with Tech Stack Intelligence
Stop cold-calling hiring managers blind. Use tech stack data to target the right companies, reach the VP of Engineering or CTO directly, and prove you understand their needs before you even pick up the phone.
Real scenarios, real results
Find companies hiring for specific stacks
Search for companies using React, Python, Kubernetes, or any of 1,400+ technologies. If a company just adopted a new framework, they probably need developers who know it. Filter by location and company size to match your niche.
A staffing agency specializing in DevOps searched for companies using Kubernetes + AWS in the Bay Area with 50-500 employees. Found 340 mid-market companies actively building cloud infrastructure teams.
Contact the VP of Engineering or CTO directly
Skip the gatekeepers. Every company profile includes decision maker contacts with verified email addresses and LinkedIn profiles. Reach out to the VP of Engineering, CTO, Head of Talent, or Engineering Manager directly.
Instead of emailing [email protected], reach Sarah Chen (VP Engineering) at [email protected]. Your pitch lands in the inbox of the person who actually signs off on hiring.
Export leads to CSV and build outreach campaigns
Export company data, tech stacks, and decision maker contacts to CSV. Import into your CRM, outreach platform, or email tool. Build segmented campaigns based on technology, company size, or location.
Export 200 companies using Go + Kubernetes with their CTO contacts. Upload to your outreach tool. Send personalized emails: "I noticed your team is scaling their Go microservices on Kubernetes..."
Pitch with credibility using stack data
When you know a company runs React, Next.js, and Vercel, you can speak their language. Reference their specific tech stack in your outreach to show you understand their engineering culture and hiring needs.
"Hi James, I see your team at Acme Corp runs a modern stack with Next.js and Vercel. I have three senior React engineers with Next.js experience who could hit the ground running..."
Your workflow with StackWho
Search for companies using your candidate's tech stack (e.g., "Companies using Rust in New York")
Filter by company size to match seniority level (startups for senior roles, enterprises for specialists)
View decision maker contacts -- VP Engineering, CTO, Engineering Manager
Export the list to CSV with company name, tech stack, contact name, email, title
Import into your outreach tool and send tech-aware personalized messages
Track which stacks and company sizes convert best for your niche
Other use cases
For Sales Teams & SDRs
Find companies already using your competitor's product -- or companies whose tech stack signals they're ready for yours....
For Product & Strategy Teams
Know exactly what tools your competitors rely on. Monitor technology adoption across your market. Spot trends before the...
For Analysts & Researchers
Real data on what technologies companies actually use -- across industries, company sizes, and regions. No surveys. No e...
For VCs, PEs & Analysts
Understand a company's technology choices before you invest. See if they're building on modern infrastructure or legacy ...
For Business Development & Partnerships
Find companies whose technology stack makes them ideal partners. Whether you're building integrations, co-marketing camp...
Know their stack. Reach their team.
Browse for free. Export when you're ready. No annual contracts.
Free to browse. No credit card required.