We believe in curiosity, kindness, and are driven by a strong sense of positive work culture. Our process is iterative, constantly learning from the things we try.
Leading brands depend on Castle to protect over 500 million customers. We track and analyze large amounts of data in real-time to provide the best cohesive intelligence.
We operate globally from offices in San Francisco, Poland, and Sweden. We also embrace a supportive and open remote working culture.
We welcome talent from all across the globe and also embrace a diverse and supportive remote working culture.See open roles
in Malmo, Sweden
Founders move to the Bay Area to
participate in Y Combinator
Castle raises their Series A
Castle triples their team in
the next 12 months.
Housed out of a 90 square foot closet (The rent was $50 a month, including fiber broadband), Castle became the third company founded by the two developers and friends, Johan and Sebastian, who at the time had been working on tech together for over 10 years.
On the third attempt Castle was finally accepted to Y Combinator and the founders moved to Mountain View. There they went through the accelerator and eventually raise their seed round from investors like First Round Capital and yes, Y Combinator.
After growing the team and reaching their first million dollars in annual revenue, Castle raised their Series A from Index Ventures, which allowed them to quickly triple the team and set up their first dedicated offices.
Castle continues to expand the team from three offices in San Francisco, Krakow, and Malmö, as well as fully remote, and now protects over 500 million end-users worldwide.
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