MNTSQ Relocates Headquarters to Harumi Island Triton Square

MNTSQ, Ltd. a company providing SaaS solutions to standardize and visualize corporate contract operations through AI, relocated its headquarters in October 2025 from Ningyocho PREX to Harumi Island Triton Square.

The new office building was completed in 2001 and features approximately 592 tsubo (approx. 19,580 sq. ft.) of standard floor area, a ceiling height of 2,700 mm, and 33 elevators. It is located about an 8-minute walk from Kachidoki Station on the Toei Oedo Line and about a 15-minute walk from Tsukishima Station on the Tokyo Metro Yurakucho Line.

Key Facts

• Company: MNTSQ, Ltd.

• Relocation Date: October 2025

• Previous Office: Ningyocho PREX 5F–6F (1-9-8 Nihonbashi Horidomecho, Chuo-ku, Tokyo)

• New Office: Harumi Island Triton Square Office Tower X, 4F (1-8-10 Harumi, Chuo-ku, Tokyo)

• Property Overview

  • Completion: April 2001

  • Number of Floors: 44F / B4

  • Standard Floor Area: Mid-rise approx. 543.7 tsubo (approx. 17,970 sq. ft.) / High-rise approx. 592.0 tsubo (approx. 19,580 sq. ft.)

  • Ceiling Height: 2,700 mm

  • Elevators: 33

  • Nearest Stations: Kachidoki Station (Toei Oedo Line, approx. 8 min walk) / Tsukishima Station (Tokyo Metro Yurakucho Line, Toei Oedo Line, approx. 15 min walk)