Organizations
- The Nuclear and Industrial Safety Agency in Japan.
- The former National Intelligence Security Authority of the Republic of the Philippines.
- Nisa-Today's, a British symbol group of small grocery stores.
- NISA - an abbreviation of Nippon Ichi Software America, also known as NIS America.
- Nisa Aşgabat - Turkmen football club.
- National Ice Skating Association, British sports governing body
- North Imphal Sporting Association, a Manipuri football club in India.
- NISA - National Industrial Security Academy, A premier school of industrial security management in India.
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