Head offices
| Photo | Company | Address | Headquarters size |
|---|---|---|---|
 | DaikinHead office (reception 34F) | Osaka Umeda Twin Towers South, 1-13-1 Umeda, Kita-ku, Osaka 530-0001, Japan | ≈ 226,000 sq ft (20,996 m²) |
 | KOKUYOKOKUYO HQ (head office, 14F) | Grand Green Osaka Park Tower 14F, 5-54 Ofukacho, Kita-ku, Osaka 530-8459, Japan | ≈ 44,800 sq ft (4,162 m²) |
Sizes are the companies’ own figures, as shown on each profile with the source. “—” means the company does not publish one.
Other notable offices in Osaka
Offices of companies headquartered elsewhere, from each company profile.
| Company | Office | Address |
|---|---|---|
| CybozuHeadquarters: Tokyo, Japan | Osaka office | Osaka Umeda Twin Towers North 35F, 8-1 Kakudacho, Kita-ku, Osaka 530-0017Source: cybozu.co.jp company profile (also lists sales offices in Sapporo and Sendai and the Naha contact center) |
| ITOKIHeadquarters: Tokyo, Japan | Kansai branch and Osaka showroom | 1-6-11 Awajimachi, Chuo-ku, Osaka 541-0047, JapanSource: itoki.jp company outline and list of main offices |
| SansanHeadquarters: Tokyo, Japan | Kansai branch | Kanden Fudosan Dojimahama Building 3F, 1-4-19 Dojimahama, Kita-ku, Osaka 530-0004Source: jp.corp-sansan.com company profile (also lists satellite offices Sansan Kamiyama Lab, Sansan Innovation Lab and Sansan Nagaoka Lab) |
Osaka in headquarters history
- 2026KOKUYO · KOKUYO HQ, Grand Green Osaka
On May 1, 2026, after 90 years in Higashinari-ku, KOKUYO moved its registered head office to the 14th floor of Grand Green Osaka Park Tower in Umeda, bringing together corporate staff from Higashinari and business teams from its Umeda office. KOKUYO HQ opened as a live office on June 16, 2026.
- 2022Daikin · Osaka Umeda Twin Towers South
On November 24, 2022, two years before its 100th anniversary, Daikin moved its head office out of the Umeda Center Building into Osaka Umeda Twin Towers South, a new tower completed that February at 1-13-1 Umeda. The move had been decided in December 2019.
- 2010Obayashi · Shinagawa becomes the head office
The Tokyo head office was reorganized into the company's head office and a Tokyo main office, and the Osaka main office was renamed Osaka Main Office. In 2013 the Osaka Main Office moved to the Daibiru Main Building.
- 2007Obayashi · The old head office becomes Le Pont de Ciel Building
Obayashi renovated its former Osaka head office from earthquake strengthening to building services, keeping the historic façade by adding shear walls inside the old windows. It reopened as Le Pont de Ciel Building.
- 2001Sumitomo Corporation · One head office at Harumi Triton Square
The “Osaka Head Office” and “Tokyo Head Office” were abolished and all head-office functions moved to Harumi Triton Square in Chuo-ku, Tokyo — a ¥300 billion development led by Sumitomo Corporation itself, then the largest commercial development project in Japan.
- 1999Cybozu · Umeda, Osaka
In December 1999 head-office functions moved to Umeda, Kita-ku, Osaka.
- 1999Obayashi · Tokyo head office moves to Shinagawa Intercity
Obayashi helped build Shinagawa Intercity, completed in November 1998, and moved its Tokyo head office there. Two years later, for its 110th anniversary, it opened the Obayashi History Museum inside the old 1926 head office in Osaka.
- 1998–99Cybozu · Chayamachi, Osaka
To hire more people the company moved to a big city: Hata and Aono went to Osaka first, head-office functions moved to Chayamachi, Kita-ku, in December 1998, and all functions followed in March 1999.
- 1992ITOKI · A new head office building
ITOKI's history records a new head office building completed in 1992. In July 2017 the company still gave its head office as Joto-ku, Osaka.
- 1991Takeda · Takeda Midosuji Building, 4-1-1 Doshomachi
An 11-storey building of 32,821 m² ordered by Takeda, designed by Nikken Sekkei and built by Obayashi and Takenaka, was completed in November 1991 at 4-1-1 Doshomachi. Takeda's Osaka head office address is 4-1-1 Doshomachi.
- 1987Daikin · Head office moves to the Umeda Center Building
Daikin moved its headquarters to the Umeda Center Building in Osaka's Kita ward. The same year a Daikin VRV system, which lets each floor control its own air conditioning, was installed in the building.
- 1984KDDI · DDI: Kazuo Inamori takes on NTT
Kyocera founder Kazuo Inamori set up Daini Denden Kikaku in June 1984. As DDI it started business in April 1985, when Japan opened telecoms to competition, and launched long-distance calls between Tokyo, Nagoya and Osaka in 1987.
Questions
Which big companies have their headquarters in Osaka?
On eciffo, 2 of the biggest companies have their head office in Osaka: Daikin and KOKUYO.
Which big companies have notable offices in Osaka besides their headquarters?
Cybozu (Osaka office, Osaka Umeda Twin Towers North 35F, 8-1 Kakudacho, Kita-ku, Osaka 530-0017); ITOKI (Kansai branch and Osaka showroom, 1-6-11 Awajimachi, Chuo-ku, Osaka 541-0047, Japan); Sansan (Kansai branch, Kanden Fudosan Dojimahama Building 3F, 1-4-19 Dojimahama, Kita-ku, Osaka 530-0004).
What is the biggest company headquarters in Osaka?
Of the head offices on eciffo, Daikin's Head office (reception 34F) is the largest at ≈ 226,000 sq ft (20,996 m²), as reported by the company.