[2]

事業者接頭辞
事業者木 (vnd.)

[3] 主要な Webブラウザーの事業者

Google
Apple
Mozilla
Microsoft
Opera

[1] (2014-11-01 05:54:38 +09:00 版) https://cabforum.org/wp-content/uploads/BRv1.2.3.pdf#page=9

Application Software Supplier: A supplier of Internet browser software or other relying-party application
software that displays or uses Certificates and incorporates Root Certificates.

[4] Web標準化におけるWebブラウザー事業者と他事業者との対立