Tetsujin Holdings, Inc.

Tetsujin Holdings, Inc. engages karaoke, media, alliance, restaurant, beauty, and other businesses in Japan. It offers karaoke distribution systems. Its portfolio also includes mobile content, such as ringtones, ring melodies, lyrics, and deco-mail, operates an android dictionary, a curation site that features articles for Android users, and content collaboration and in-store media products. It also operates restaurants.

Its portfolio also includes nail, eyelash extension, eyebrow, and head spa salons, and manages and operates real estate facilities. Incorporated in 1999 and headquartered in Tokyo, Japan, TETSUJIN was formerly known as TETSUJIN Inc. before rebranding in February 2024.