Anritsu Corporation (アンリツ株式会社, Anritsu Kabushiki-gaisha) is a Japanese multinational corporation in the telecommunications electronics equipment market.

[4] A global pioneer for producing the world's first wireless telephone network, Anritsu's revenue numbers near US$782 million.

Annaka Electric Company followed, producing wireless transmitters and the world's first wireless telephone service and Japan's first automatic public telephone.

In 1990, Anritsu acquired Wiltron Company in the United States for $180 million.

[7] Products include network call trace, service assurance, customer experience management, microwave, radio frequency (RF), and optical signal generators, spectrum analyzers, and network analyzers.