Castle Security
Castle Security's Overview
Castle Security is a cybersecurity company specializing in real-time fraud prevention and account security. They provide solutions that help online businesses protect against account takeover (ATO), fake account creation, bot attacks, and other forms of online fraud. By analyzing user behavior, device intelligence, and other risk signals, Castle's platform identifies and mitigates threats automatically, aiming to provide a frictionless experience for legitimate users while enhancing security for digital platforms.
Where is Castle Security's Headquarters?
HQ Function
The San Francisco headquarters serves as the central hub for executive leadership, core product development, engineering, research, sales, marketing, and administrative operations.
Notable Features:
The headquarters is located in a modern office building, likely featuring contemporary design, open-plan workspaces to foster collaboration, and advanced technological infrastructure. Its location offers access to a vibrant tech community.
Work Culture:
Castle Security likely fosters a dynamic, innovative, and collaborative work culture, characteristic of technology companies in the Bay Area. There's an emphasis on agile development, problem-solving, continuous learning, and a strong focus on protecting end-users and businesses. Remote work and flexibility are common in such organizations.
HQ Significance:
The San Francisco headquarters is strategically vital, providing Castle Security with access to top-tier tech talent, venture capital, industry partnerships, and a competitive environment that drives innovation in cybersecurity.
Values Reflected in HQ: The headquarters in a leading tech hub reflects Castle Security's commitment to innovation, growth, and being at the forefront of cybersecurity technology. The modern office environment likely mirrors values such as collaboration, efficiency, and forward-thinking.
Location:
While primarily headquartered in San Francisco, Castle Security serves a global customer base, providing its security solutions to online businesses across various countries. Their operational model likely includes remote team members and digital infrastructure to support international clients and ensure continuous monitoring and protection worldwide.
Street Address:
201 Spear St, Suite 1100
City:
San Francisco
State/Province:
CA
Country:
USA
Castle Security's Global Presence
Buying Intent Signals for Castle Security
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Executive Team of Castle Security
As of April 2025, Castle Security' leadership includes:
Investors of Castle Security
Castle Security has been backed by several prominent investors over the years, including:
Executive New Hires/Exits in the Last 12 Months
As of early 2024, there have been no high-profile C-level executive hires or departures publicly announced by Castle Security in the last 12 months. The co-founding team continues to lead the company's strategic direction and operations.
Technology (Tech Stack) used by Castle Security
Discover the tools Castle Security uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Castle Security Email Formats and Examples
Castle Security, with the domain castle.io, likely employs standard corporate email formats. The most common format appears to be based on the first name.
[first]@castle.io
Format
johan@castle.io
Example
80%
Success rate
News and media
EIN Presswire / Castle.io • January 24, 2024
Castle Security's platform, Castle.io, Recognized as High Performer in G2 Winter 2024 Grid Reports
Castle.io announced its recognition as a High Performer in the G2 Winter 2024 Grid Reports for both Fraud Detection and E-commerce Fraud Detection. This acknowledgment is based on high customer satisfaction scores and a significant market presence....more
Castle.io Blog • October 4, 2023
Castle Security Named Momentum Leader in G2 Fall 2023 Grid® Reports for Fraud Detection
Castle Security announced it was named a Momentum Leader in the G2 Fall 2023 Grid® Reports for Fraud Detection. This reflects the company's increasing growth trajectory and positive customer feedback within the fraud prevention market....more
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