Locked Stack Inc

Locked Stack is an independent cybersecurity consultancy and managed services firm headquartered in London, United Kingdom, with a presence in Dover, Delaware, operating across North America, Europe, and the UK. 

The company specialises in payment security and broader risk management, delivering structured advisory and managed services that support regulatory and industry standards across both business and technology environments. As a certified PCI DSS QSA company, payment card security sits at the heart of everything they do.

Locked Stack works with organisations ranging from growing enterprises to public sector bodies, providing repeatable and sustainable compliance programmes designed to deliver measurable value over time. Their technology-assisted approach reduces assessment effort, shortens compliance timelines, and supports ongoing regulatory alignment. 

The team brings extensive real-world experience in security assurance, risk, and regulatory delivery, with prior roles in global enterprise environments — allowing them to address complex security and compliance challenges with confidence and at scale