StackWho

Spec sheet

Product

StackWho helps users find companies by their technology stacks and reach decision makers with verified contact details.Read 8 Oct 2026 · stackwho.com

Security

StackWho says account data and saved lists are encrypted at rest and in transit, and that Stripe processes payments while StackWho does not store card details.Read 8 Oct 2026 · stackwho.com

Privacy

StackWho says its data comes from public sources, that it complies with GDPR and CAN-SPAM, and that it honors opt-out requests.Read 8 Oct 2026 · stackwho.com

Support

The contact page says StackWho aims to respond to messages within 1–2 business days.Read 8 Oct 2026 · stackwho.com

Cancellation

Monthly and annual subscriptions can be cancelled from the dashboard, with access continuing until the billing period ends and no cancellation fees.Read 8 Oct 2026 · stackwho.com

Contacts

Company profiles can include decision makers' names, titles, verified email addresses, and LinkedIn profile URLs.Read 8 Oct 2026 · stackwho.com

CRM workflow

The site says CSV data can be imported into HubSpot, Salesforce, Outreach, Apollo, or another CRM.Read 8 Oct 2026 · stackwho.com

Data collection

StackWho says it detects technologies using public website code, HTTP headers, DNS records, JavaScript libraries, meta tags, CDN patterns, job postings, and public repositories.Read 8 Oct 2026 · stackwho.com

Data freshness

The company says it rescans company websites weekly and refreshes company metadata on the same cycle.Read 8 Oct 2026 · stackwho.com

Database

The site says StackWho tracks more than 689,020 companies and 1,486 technologies globally.Read 8 Oct 2026 · stackwho.com

Exports

Pro subscribers can export unlimited CSVs, with up to 5,000 companies in each export.Read 8 Oct 2026 · stackwho.com

Free plan limits

Free users can browse company profiles and full technology stacks, but contact emails are masked and results are limited to 10 pages.Read 8 Oct 2026 · stackwho.com

Search

Users can filter companies by technology, industry, location, and company size.Read 8 Oct 2026 · stackwho.com

Plans and prices

Every StackWho plan and price →

Where Specifiction places it

• Technographic Data Software#27 of 307.1