Japan’s best-designed offices — one company, one walkthrough
OFFICES › MARUNOUCHI, TOKYO › MITSUI BUSSAN AEROSPACE

Office · Marunouchi, Tokyo · Aerospace trading

Mitsui Bussan Aerospace — Marunouchi: helicopters on the reception shelf

This Mitsui company sells helicopters, business jets and sensor systems. On the 22nd floor of the Tekko Building in Marunouchi, it lets the products do the greeting: scale models and film of what it handles sit in the reception.

Company Mitsui Bussan Aerospace Co., Ltd. (三井物産エアロスペース)Location Tekko Building 22F, 1-8-2 Marunouchi, Chiyoda, TokyoHandles Leonardo helicopters, Dassault Falcon jets, FLIR sensor systems, security systems, defence equipment, aero engines, spaceShown Reception, meeting rooms, refresh space, galleryWebsite aerospace.mitsui.co.jp ↗
The reception
The reception

Concept

Let the cargo introduce the company

The company is in the Tekko Building, which it notes is easy to reach from the station and convenient both for the commute and for afterwards. Come out of the lift lobby, walk the corridor, and the entrance opens.

What is waiting there is the business itself: film of the products it handles, and scale models. For a trading company whose goods are too large to bring upstairs, a model of a helicopter on a shelf is the most direct introduction available.

A meeting room
A meeting room
The refresh space
The refresh space

01 · Reception

Flowers, film and models

The reception carries a display of scale models and a screen showing the products, so that a visitor knows what the company does before anyone says it.

The reception
The reception

02 · Meeting rooms

Several, for inside and outside

There are several meeting rooms, used for meetings with people inside the company and outside it.

A meeting room with the city behind
A meeting room with the city behind
A meeting room in timber
A meeting room in timber
A larger meeting room
A larger meeting room

03 · The gallery

Models, and framed things

A display case along the way holds more models and framed pieces — the company’s own gallery of what it has carried.

The display case
The display case

04 · Refresh space

Green tile, and a name

The refresh space is finished in warm timber and a wall of green tile, with a counter, a screen and a magazine rack. The company says it is not only for meetings: anyone on the staff can use it for lunch or simply to sit.

The refresh space
The refresh space
The counter under its sign
The counter under its sign

05 · Work floor

Where the desks are

The working floor keeps the same palette, with booth seating upholstered in green along one side.

The work floor
The work floor
CompanyMitsui Bussan Aerospace Co., Ltd.
Design[to confirm]
Photography© Mitsui Bussan Aerospace Co., Ltd. (from the company’s own site)
SourceMitsui Bussan Aerospace, “Office”, re-reported by WALL ↗
PublishedSeptember 2026
OFFICEMILL — explore offices across Japan
Planning an office in Japan?The design and build firms behind the offices on WALL are listed on our Partners page.
SEE PARTNERS