Hate to add to the swamp list but think about and/or research what happens in these.

More to consider - private 'off-the-listing' business orgs. worldwide.

Military and Govt logistics.

https://www.sourcesecurity.com/companies.html

https://duckduckgo.com/?q=asset+security+companies+list&t=ffab&ia=web

https://duckduckgo.com/?q=armored+security+companies+list&t=ffab&ia=web

Public open-sourced data.

Awareness is better than ignorance.