In 1895, Anritsu's predecessor Sekisan-sha was founded. The company improved its performance particularly with the production of Morse printers. With a merger in 1908, the company became Kyoritsu Electric Wire, and expanded its operations with the production of public telephones that had just been launched in Japan.
Around that time, technologies connected to the current business of the Anritsu Group were discovered; Guglielmo Marconi in Italy succeeded in wireless telegraphy based on radio waves, and Wilhelm Conrad Röntgen in Germany discovered X-rays and succeeded in taking radiograph. Anritsu has a history of advancing together with technologies for signal processing, particularly communications.