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Grand Opening of Signature Nihon Seimei Marunouchi Building

On October 1, 2025, Regus Japan, a subsidiary of the Mitsubishi Estate Group, proudly unveiled the Signature Nihon Seimei Marunouchi Building in Tokyo, celebrating its 200th location in the country’s extensive network. Situated in a prime location near Tokyo Station and the Imperial Palace, this new workplace epitomizes the concept of “Junctions of Journeys,” blending accessibility with aesthetic appeal to enhance brand value and productivity.

An Innovative Design Inspired by Train Stations

The centerpiece of the building’s design is inspired by the imagery of a train station, reflecting the concept of intersection and travel. Drawing from classic architectural elements, the building incorporates Art Deco style, which is recognized for its bold geometrical shapes and luxurious materials. As visitors step into the reception area, they are greeted by design motifs evoking ticket kiosks, complete with brass and wood accents reminiscent of the journey kickoff. The lounge area, designed for relaxation, features seating arrangements that evoke train compartments, fostering a sense of interconnectedness while creating a serene atmosphere.

Rethinking Workspaces: A Premium Experience

The Signature Nihon Seimei Marunouchi Building elevates the standard of workplace environments by offering a premium experience designed to accommodate various professional needs. The facility boasts 118 office rooms with a total area of 2,169 square meters and can seat 331 individuals at their workstations. This flexibility allows companies to adapt their workspace to suit their specific needs, without sacrificing comfort and character.

The space includes three meeting rooms that are equipped with modern amenities, promoting collaboration and engagement among teams. Additionally, the business lounge and rental office facilities are accessible 24 hours a day, providing an environment conducive to productivity, whether it be an early morning meeting or a late-night brainstorming session.

Regus' Journey to 200 Locations and Beyond

The establishment of the Signature Nihon Seimei Marunouchi marks a significant milestone in Regus' ongoing journey to adapt and expand in response to the evolution of workstyles over the last two decades. Expanding from urban centers to regional hubs, Regus continues its mission to establish workspace solutions that cater precisely to the diverse needs of businesses and their evolving landscapes. The brand strength not only lies in the breadth of its 200 locations but also in its ability to offer tailor-made solutions that meet the unique demographics and operational requirements across different regions.

Offering a portfolio of four distinctive brands, including Signature, Spaces, Regus, and Openoffice, Regus ensures that every customer finds a flexible office solution that fits their specific needs. Built on a foundation of rapid responsiveness and high levels of customization, the company leverages local operational insights while maintaining the strength of a global network.

The Future of Work: A Community-Centric Approach

Regus aims to foster sustainable, data-driven workplaces where communities thrive. As they expand their network from Marunouchi to other urban junctions, airports, and regional business centers, they look forward to partnering with clients in defining what the future of work looks like. The Signature Nihon Seimei Marunouchi Building not only stands as a beacon of innovation and adaptability; it symbolizes the company’s commitment to creating premium environments where diverse professionals can flourish.

In this innovative workspace, Regus is ready to evolve work culture alongside its clients, exploring novel ways to enhance productivity and job satisfaction while navigating the challenges of modern worklife.

Location and Contact Information

• - Address: 6-6 Marunouchi 1-chome, Chiyoda, Tokyo 100-0005
• - Access: 1-minute walk from JR Tokyo Station Marunouchi North Exit & Tokyo Metro Marunouchi Line, 2-minute walk from Otemachi Station on the Tozai Line
• - Website: Signature Nihon Seimei Marunouchi Building

Regus, known globally as the largest workspace provider with an expansive network of 4,000 locations in over 120 countries, has introduced innovative work styles to Japan since 1998. Now, strengthened by its association with Mitsubishi Estate Group, Regus continues to evolve, planning further growth and development across the nation.