We’re excited to partner with Kong on #Decentralize2020 - a free full-day event on April 16th!
Webinar - Beating Bad Bots by Knowing Good Users. April 8, 2020 | 10 AM PT / 1 PM ET
eBook - 4 Tactics Cyberattackers are Starting to Employ in Account Take Over Attacks
New Cloudflare Integration - Protecting your company is now simpler with Cloudflare.
Towards a passwordless future
The shift of responsibility to the customer must stop. It is about time that companies take the next step in securing their products, and we are here to help. Whether you're building a bitcoin service, e-commerce store, mobile app, or any other customer-facing application, Castle will have your users' accounts protected from fraud and hijacks within minutes. And the more we are, the better our algorithms will get at catching the bad guys. Maybe one day we won't even be needing those passwords anymore.
Castle was founded in Malmo, Sweden, by the two engineers Johan and Sebastian.
Johan and Sebastian moved to the Bay Area to participate in Y Combinator.
The Scale Up
Castle raises their Series A and is set to triple their team in the next 18 months.
Our Core Values
We're on a mission to simplify account security
Take your work seriously. Not yourself
We spend a huge amount of our time at work. So the more that time doesn’t feel like “work,” the better. At the same time, we can be serious, without taking ourselves too seriously.
Trust and be trustworthy
Trust that everyone is here because they want to be. Trust each other to do what we say. Trust when we can’t we’ll let each other know. Trust that it’s ok to make mistakes.
Just build it
We believe the best way to learn if something will work is to just go do it. Our process is iterative, and we're constantly learning from the things we try. When in doubt, just build it.
The San Francisco office was founded in 2016
1663 Mission St #720, San Francisco
The Poland office was founded in 2017.
Kuklińskiego 17, 30-720 Kraków, Poland
The Sweden office was founded in 2015.
Drottninggatan 38a, 211 45 Malmö, Sweden
Want to help us eliminate passwords?
We're a team of engineers, designers and security lovers. We'd love to have you on board!