Last updated 2026-04-12
Contact
stubkit is a product of Cryptosam LLC, a United States limited liability company registered in the State of Florida. Our team has been shipping software and operating online services for 500+ businesses since 2012.
Sales and general inquiries
Security disclosures
Please encrypt sensitive reports with our PGP key, available on request. We acknowledge every submission within one business day.
Privacy and data requests
Registered office
Cryptosam LLC
7901 4th N, STE 300
St. Petersburg, Florida 33702
United States
Business hours
Monday – Friday, 09:00 – 18:00 Eastern Time. Urgent service-affecting issues are monitored 24/7 via security@stubkit.com.