For Sales Teams & SDRs

Build Targeted Prospect Lists by Technology

Find companies already using your competitor's product -- or companies whose tech stack signals they're ready for yours. Export contacts, import into your CRM, and start closing.

Start building prospect lists Browse companies

How it works

Real scenarios, real results

1

Target companies using competing products

Selling an analytics tool? Find every company using Google Analytics, Mixpanel, or Amplitude. Selling a hosting platform? Find teams on Heroku or DigitalOcean who might be ready to scale. Technology data tells you exactly who your prospects are.

Example

A sales team at a monitoring company searched for companies using Datadog with 500+ employees. Found 1,200 enterprise accounts to target with competitive displacement campaigns.

2

Identify companies with complementary stacks

If your product integrates with React, find companies using React. If you sell to Python shops, filter for Python-heavy organizations. Tech stack compatibility means higher conversion rates.

Example

A CI/CD platform filtered for companies using GitHub Actions + Docker + AWS. These companies already have the DevOps maturity to adopt their product immediately.

3

Reach the decision maker, not the intern

Every company profile includes C-level and VP-level contacts with verified emails. Stop wasting time on generic info@ addresses. Reach the CTO, VP Engineering, or Head of Product who signs the PO.

Example

Instead of filling out a "contact sales" form on their website, email the VP Engineering directly with a message tailored to their exact tech stack.

4

Export to CRM and scale outreach

Export company data with contacts to CSV. Import into HubSpot, Salesforce, Outreach, Apollo, or any CRM. Build automated sequences with technology-specific messaging at scale.

Example

Export 500 companies using Heroku with their CTO contacts. Create a Salesforce campaign. Send: "I noticed your team runs on Heroku. Many teams your size save 40% by migrating to..."

Step by step

Your workflow with StackWho

1

Search for companies using a competitor's technology or a complementary tool

2

Filter by industry, company size, and location to match your ICP

3

Review company profiles to qualify opportunities

4

Export qualified companies with decision maker contacts to CSV

5

Import into your CRM and create segmented outreach campaigns

6

Personalize messages with tech stack references for higher reply rates

Other use cases

For Recruiters & Staffing Agencies

Stop cold-calling hiring managers blind. Use tech stack data to target the right companies, reach the VP of Engineering ...

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...

Get started today

Know their stack. Reach their team.

Browse for free. Export when you're ready. No annual contracts.

Start building prospect lists View Pricing

Free to browse. No credit card required.