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Castle
Castle
Fight fraud faster.
About
Founded
2014
Headquarters
San Francisco, California
Industry
Security & Compliance
Company Description
Instantly stop automated and human-originated account takeovers, fake accounts, and any behavior that violates your platform policies.
Quick Links
Website
Jobs
Funding
Total Raised
$11.6 million
Valuation
Undisclosed
Significant Investors
First Round Capital, Index Ventures, Y Combinator, F-Prime
Company Traction
As of May 2023, Castle protects 500 million user accounts.
Castle customers include Atlassian, Rent the Runway, Wonolo, Yieldstreet, GoTo, and DailyPay.
Leadership Team
Johan Brissmyr
: Co-Founder & CEO of Castle. Former Co-Founder & CEO of Userbin.
Sebastian Wallin
: Co-Founder & Chief Architect of Castle. Former Co-Founder of Popdevelop.
Lisa Rydje
: Chief of Staff at Castle. Former Group Lead at Feministiskt initiativ.
Valerie Kirk
: Director of Business Operations at Castle. Former Operations Manager at Etheric Networks.
Press
VentureBeat (February 8, 2019):
Castle raises $9.2 million for AI that protects consumer apps from account takeovers
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