CAPTCHA
CAPTCHA features technologies that distinguish human users from bots to enhance online security. It helps protect websites from automated threats and misuse.
4
technologies
1,252
companies
List of companies using CAPTCHA
curl --request POST \
--url "https://api.theirstack.com/v1/companies/search" \
--header "Accept: application/json" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <api_key>" \
-d "{
\"tech_filters\": {
\"technology_category_slug_or\": [
\"captcha\"
]
}
}"
Employees5kRevenue$453MHospitals and Health Care
Employees3kRestaurants
Employees84Higher Education
Employees427Commercial and Industrial Machinery Maintenance- Employees5Higher Education
Employees20Venture Capital and Private Equity Principals
Employees372Engineering Services
Employees439Renewable Energy Power Generation
Employees27kRevenue$600MIT Services and IT Consulting
Employees271Retail Groceries
We have data on 1.3k companies and users that use CAPTCHA. Our CAPTCHA users and customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.
Frequently asked questions