See Trusted Information Systems (TIS).

Trusted Information Systems. The vendor of a major firewall product.

(TM) Acronym for Trusted Information Systems, Inc., a company that supplies software and support for firewall security.

Trusted Information Systems (Firewall toolkit)

Télépéage Inter-Sociétés. Technical and contractual context of electronic fee collection (EFC) interoperability in the French concession system.

TIS (Thailand-Indonesia-Singapore) is a submarine telecommunications cable system in the South China Sea linking Thailand, Singapore, and Indonesia