Castle
Software DevelopmentNew York, United States11-50 Employees
Castle lets you block bad bots, account takeovers, transaction fraud, and spam — all without the hassle of CAPTCHAs.
Castle uses 8 technology products and services including Zendesk, SendGrid, Google Fonts API, and more. Explore Castle's tech stack below.
| Castle Email Formats | Percentage |
| First.Last@castle.io | 41% |
| First@castle.io | 9% |
| First.Last@castle.io | 41% |
| First@castle.io | 9% |
Software DevelopmentNew York, United States11-50 Employees
Castle lets you block bad bots, account takeovers, transaction fraud, and spam — all without the hassle of CAPTCHAs.
Castle's revenue is estimated to be in the range of $10M$25M
Castle's revenue is estimated to be in the range of $10M$25M