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Castle
Defend against bots, fraud, and abuse11-50 Employees
  • B2B
  • Early Stage
    Startup in initial stages
  • Top Investors
    This company has received a significant amount of investment from top investors
  • YC Funded
    Startup funded by Y Combinator
  • 5.0
    Highly rated
    Castle is highly rated on Glassdoor, with 5.0 out of 5 stars
  • 4.7
    Work / Life Balance
    Employees rate Castle 4.7/5 on Glassdoor for work / life balance
  • 5.0
    Strong Leadership
    Employees rate Castle 5.0/5 on Glassdoor for faith in leadership
Website
Locations
Company size
11-50 people
Total raised
$11.6M
Company type
Startup
Markets
InternetSecurityDeveloper APIsFraud DetectionCyber Security
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People at Castle

Founders
Sebastian Wallin
Co-founder & Chief Architect • 10 yearsMalmö
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Co-founder and CTO at @Castle. Passionate about using software to solve important problems
Background
Johan Brissmyr
FounderBrooklyn
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CEO and Co-founder at @Castle
Background
Team
Rafał Malinowski
Staff Infrastructure Engineer • 5 yearsSzczecin
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Lisa Rydje
EmployeeNew York City
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Head of Operations
Bryan Harris
AdvisorLondon
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Enterprise Sales Executive with a passion for early-stage startups. Enjoy selling a technical product and getting creative on all things sales.
Former team
Adam Coquia
Enterprise Sales • 3 years
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Filip Tepper
Infrastructure Team Lead • 5 years
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