What technologies does USDN Inc. use?

USDN Inc. uses Outlook, Microsoft Office 365, Amazon AWS, Apache, Google Analytics. View their full technology stack — including all 10 detected tools — on StackWho.

Who is the CEO & Chief Scientist of USDN Inc.?

Anthony Castillo is the CEO & Chief Scientist at USDN Inc.. Get verified contact information on StackWho.

Where is USDN Inc. located?

USDN Inc. is based in San Francisco, California, United States.

USDN Inc.

usdn.net

computer & network security

usdn.net

San Francisco, California, United States

1-10 employees

LinkedIn Profile

About USDN Inc.

network security auditing, cybersecurity, 24/7 monitoring, pgp key, incident response support, non-emergency contact, threat detection, incident response, key fingerprint, cyber defense, services, information technology and services, security incident management, computer systems design and related services, security operations center, b2b, threat mitigation, cyber threat mitigation, security support, global support

USDN Inc.'s Tech Stack

AI/ML

Decision Makers at USDN Inc.

1 contact

Anthony Castillo

CEO & Chief Scientist

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10 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

AWS infrastructure signals engineering sophistication. This company likely evaluates cloud cost management, security tooling, observability, and developer productivity solutions.

USDN Inc.'s Position in the StackWho Database

• USDN Inc. is 1 of 4,889 computer & network security companies tracked in StackWho.
• 4,875 computer & network security companies in our database have verified decision-maker emails (100% of the cohort).
• 53,147 companies in California are in the StackWho database.
• 2,068 computer & network security companies are in the 1-10 employee range (same size as USDN Inc.).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated July 2026.

Frequently Asked Questions

What technology does USDN Inc. use?

USDN Inc. uses Outlook, Microsoft Office 365, Amazon AWS, Apache, Google Analytics, Node.js, and 4 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at USDN Inc.?

StackWho has verified email addresses for 1 decision maker at USDN Inc.. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach USDN Inc. directly for sales, recruiting, or partnerships.

What industry is USDN Inc. in?

USDN Inc. operates in the computer & network security industry, headquartered in San Francisco, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export USDN Inc.'s contact data?

Yes. StackWho Pro members can export decision maker contact data for USDN Inc. and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.