Office profile
Obayashi Headquarters & offices · Tokyo, Japan
Obayashi · Tokyo, Japan
An open atrium climbs eleven floors through the middle of Obayashi's Shinagawa head office, linked by stairs — and one floor above the staff canteen there is a company barber, a clinic and a dentist.
The Shinagawa office, the benefits and 134 years of head-office moves, from an Osaka shopfront to Tokyo — then the business. Every number from Obayashi's own website, ESG data book, recruiting site and investor pages.
- 11 floorsof open atrium, the “InterForum” (18F–28F)
- 22 floorsredesigned for shared seats, 2019–2021
- 1.4%employee turnover, FY2025
- 15.9 yearsaverage time at the company, FY2025
Sources: Obayashi recruiting site (OBAYASHI FIELD TRIP 360°, Shinagawa office) · Uchida Systems project interview (July 4, 2022) · Obayashi ESG Data Book (Social – Human resources), FY2021–FY2025
Companies / Japan / Construction / Obayashi
THE HEAD OFFICE · SHINAGAWA INTERCITY TOWER B · SINCE 1999
A tower Obayashi built, rebuilt inside for its 130th birthday
Obayashi works from Shinagawa Intercity, a three-tower complex it helped build in 1998. Inside, the “InterForum” — an open well with stairs from the 18th to the 28th floor — lets people walk between departments without the elevator. For the company's 130th anniversary, 22 floors were redesigned between 2019 and 2021: tall cabinets and partitions came out, a 50-meter corridor now runs straight across each floor, and fixed desks — managers' included — gave way to group seating.
- InterForum atrium, 18F–28F
- 22 floors redesigned, 2019–2021
- Each floor: two wings of ≈ 1,000 m² (≈ 10,800 sq ft) each
- Barber, clinic and dentist on 24F
- Staff canteen with a view on 23F
- Founding-era roof tile (onigawara) in the lobby
The InterForum and the open floors
The “InterForum” is an open well with stairs from the 18th to the 28th floor, and 22 floors were redesigned between 2019 and 2021 for group seating.
Floor by floor: lobby, canteen, barber and clinic
One floor above the staff canteen on 23F, the 24th floor holds a barber, a clinic and a dentist.
Shinagawa Intercity from outside
Shinagawa Intercity, three super high-rise office towers completed in November 1998, was built by Obayashi in a joint venture.
Facts: Obayashi recruiting site, OBAYASHI FIELD TRIP 360° (Shinagawa office) · Uchida Systems project interview with Obayashi's General Affairs Department and Development Division (July 4, 2022) · obayashi.co.jp project page “Shinagawa Intercity”.
Where Obayashi works
| Building | Address |
|---|---|
| Head office (Shinagawa Intercity Tower B) | 2-15-2 Konan, Minato-ku, Tokyo |
| Le Pont de Ciel Building — former head office, home of the Obayashi History Museum (3F) | 6-9 Kitahama-Higashi, Chuo-ku, Osaka 540-0031 |
Source: Obayashi company profile · Obayashi History Museum, access page · See them on the map ↓
Source: obayashi.co.jp project page “Shinagawa Intercity” · Obayashi corporate history · Uchida Systems project interview (2022)
Office tour videos
Benefits (Obayashi Corporation, Japan)
Normally 20 days a year whatever your length of service, taken in full or half days — and up to 5 days a year by the hour.
Unused paid leave is saved, up to 50 days, for your own illness, raising children or grandchildren, family care, fertility treatment or volunteering.
7 days at 10 years of service and up to 14 days at 20, 30 and 40 years, with a long-service award payment.
Special leave of up to 5 days before the birth and up to 4 weeks after it.
The company leases the apartment for employees living with family and pays part of the rent: in the Tokyo area, a ¥195,000 apartment costs the employee ¥127,800 a month.
A month, for single employees in a company-owned dormitory in the Tokyo area.
Paid while you work on a construction site; another ¥50,000 a month if a transfer means living apart from your family.
For passing exams such as first-class architect or professional engineer: a ¥100,000 bonus, then a ¥3,000 monthly allowance, plus help with exam fees.
Source: Obayashi new-graduate recruiting site, “Employee benefits” (obayashi.co.jp/recruit/graduate/welfare/). Some programs do not apply to every employment type.
Why people stay: what Obayashi's own data shows
133 people left Obayashi Corporation in the year — about 1 in every 70.
Average length of service at Obayashi Corporation in FY2025; the average age is 42.0.
Obayashi's published rate for men taking childcare leave or childcare-purpose leave in FY2025 (up from 67.0% in FY2021). Men on childcare leave took 110 days on average.
12.9 days on average in FY2025, up from 9.3 days in FY2021, while average monthly overtime fell from 41.8 to 32.1 hours.
Employees aged 45 and under can tell the HR department directly where they would like to be posted, every year; study at schools and research institutes in Japan or abroad is also supported.
Source: Obayashi ESG Data Book (Social – Human resources), FY2021–FY2025, non-consolidated · Obayashi recruiting site, “Employee benefits”
Who works here
people in the Obayashi group (FY2025)
new graduates hired in FY2025, up from 304 in FY2021
of technical staff are women (FY2025)
of managers are women (FY2025)
Source: Obayashi ESG Data Book (Social – Human resources), FY2025. Gender split calculated by eciffo from 9,472 employees, 1,736 of them women.
Office history: from an Osaka shopfront to a Shinagawa tower
- 1892 “Obayashi-ten” opens in Utsubo, Osaka
On January 25, 1892, Yoshigoro Obayashi started a civil engineering and building contracting business called Obayashi-ten at Utsubo-minamidori, Nishi-ku, Osaka (today Nishihonmachi 2-chome). A roof tile from that first shop is still on show beside the gates of the Shinagawa head office.
Source: Obayashi corporate history · OBAYASHI FIELD TRIP 360° (Shinagawa office, 3F)
No free-to-use photo found yet.Have one? We’d love to add it. - 1905 Head office moves to Kitahama
A year after the name became Obayashi-gumi and a Tokyo office opened (1904), the head office moved to Kitahama in Osaka's Higashi-ku (today Kitahama 2-chome, Chuo-ku).
Source: Obayashi corporate history
No free-to-use photo found yet.Have one? We’d love to add it. - 1926 A Spanish-style head office by the Tosabori River
In 1919 the head office moved into a new building at Kyobashi (today Kitahama-Higashi 6-chome), and in June 1926 a new head-office building was completed there — the company's fourth. Chosen in an in-house design competition and designed by staff architect Hidehiko Hiramatsu, it has brown tiles, eagles at the entrance and the year 1926 carved in Latin; Obayashi sent staff to the United States to learn the latest building methods for it.
Source: Obayashi corporate history · OBAYASHI Thinking, “Architecture connecting a city's past and future” (Shinya Hashizume, 2009)
Obayashi head office, Kyobashi, Osaka, 1920s · © OBAYASHI CORPORATION - 1970 A Tokyo head office
The Tokyo branch was closed and replaced by a Tokyo head office, alongside the main office in Osaka. Before moving to Shinagawa, the Tokyo head office was in Kanda.
Source: Obayashi corporate history · Uchida Systems project interview (2022)
No free-to-use photo found yet.Have one? We’d love to add it. - 1999 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.
Source: Obayashi corporate history · project page “Shinagawa Intercity”
No free-to-use photo found yet.Have one? We’d love to add it. - 2007 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.
Source: obayashi.co.jp project page “Le Pont de Ciel Building”
Le Pont de Ciel Building, Osaka · © OBAYASHI CORPORATION - 2010 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.
Source: Obayashi corporate history
No free-to-use photo found yet.Have one? We’d love to add it. - 2019–21 22 floors rebuilt for the 130th anniversary
About twenty years after moving in, Obayashi redesigned the whole Shinagawa office, starting with the Development Division's floor. Paper storage was cut, partitions removed and group seating introduced — which, when the pandemic arrived, made it easier to work from home.
Source: Uchida Systems project interview (July 4, 2022)
No free-to-use photo found yet.Have one? We’d love to add it.
Map: how the headquarters moved
Three head offices within about 2 km of each other in central Osaka, then a jump of some 400 km to Tokyo — where Shinagawa took over as the head office in 2010.
- 1 · 1892Utsubo-minamidori, Osaka — Obayashi-ten opens (today Nishihonmachi 2-chome, Nishi-ku)
- 2 · 1905Kitahama, Osaka — Head office moves to Kitahama (today Kitahama 2-chome, Chuo-ku)
- 3 · 1919–26Kitahama-Higashi, Osaka — New head office by the Tosabori River; today Le Pont de Ciel Building and the Obayashi History Museum
- 4 · 1999Shinagawa Intercity, Tokyo — Tokyo head office moves in; the company's head office since 2010
Addresses: Obayashi corporate history · company profile · Obayashi History Museum access page
What Obayashi does
Obayashi is a general contractor founded in Osaka in 1892. It builds offices, stations, bridges and tunnels in Japan and abroad — Tokyo Skytree and the Grand Ring of Expo 2025 Osaka among them — and also develops real estate and runs renewable-energy projects.
Businesses: domestic building construction, domestic civil engineering, overseas construction, engineering, real estate development, green energy and new businesses.
Source: Obayashi IR, Financial Highlights (FY2025 = fiscal year ended March 31, 2026) · obayashi.co.jp business overview and corporate history (Tokyo Skytree 2012, Expo 2025 Grand Ring)
Growth: revenue vs. people
¥1.92T → ¥2.59T
15,470 → 18,031
Fiscal years end March 31 (FY2025 ended March 31, 2026). Net sales: Obayashi IR, Financial Highlights (consolidated). Employees: Obayashi ESG Data Book, consolidated. Multiples calculated by eciffo.
Chief executives
Representative Director, President and CEO since 2025.
President from 2018 until 2025.
Founder: Yoshigoro Obayashi (1892, Osaka).
Source: Obayashi company profile · corporate history
Obayashi: questions people ask
Where is Obayashi's headquarters?
At 2-15-2 Konan, Minato-ku, Tokyo — Shinagawa Intercity Tower B, next to Shinagawa Station. Obayashi moved its Tokyo head office there in 1999, and it became the company's head office in 2010.
Source: Obayashi company profile · corporate history
What is inside Obayashi's Shinagawa office?
A reception floor with art and a founding-era roof tile (3F), meeting rooms each with its own artwork (14F), design floors (19F–21F), a staff canteen (23F), a barber, health center with dental care and a mothers' room (24F), and a quiet top-floor atrium with sculptures and a large model of the Shinagawa area (30F). The InterForum atrium links the 18th to 28th floors by stairs.
Source: OBAYASHI FIELD TRIP 360° (Shinagawa office)
Who built Obayashi's headquarters building?
Shinagawa Intercity, three super high-rise office towers completed in November 1998, was built by Obayashi in a joint venture. The 2019–2021 interior renewal of 22 floors was carried out with Uchida Systems.
Source: obayashi.co.jp project page · Uchida Systems project interview
Does Obayashi use free seating?
Yes. After the 2019–2021 renewal, fixed desks were replaced by group seating — managers included — with meeting spaces next to the desks. The design floors use free-address seating.
Source: Uchida Systems project interview (2022) · OBAYASHI FIELD TRIP 360°
Can you visit Obayashi's old head office?
Yes. The Obayashi History Museum is on the 3rd floor of Le Pont de Ciel Building, the former 1926 head office at 6-9 Kitahama-Higashi, Osaka. It is open on weekdays from 1 pm to 5 pm (last entry 4:30 pm), and entry is free.
Source: Obayashi History Museum, access page
How many people work at Obayashi?
Obayashi Corporation had 9,472 employees at the end of March 2026, and the group had 18,031.
Source: Obayashi company profile · ESG Data Book
What benefits does Obayashi offer?
In Japan: normally 20 days of paid leave a year, a leave bank of up to 50 days, refresh leave at 10, 20, 30 and 40 years, company-leased family housing and dormitories, a ¥50,000 monthly site allowance, qualification bonuses and resort facilities in Karuizawa and Kashikojima.
Source: Obayashi recruiting site, “Employee benefits”
Does Obayashi offer flexible working hours?
Obayashi lets employees move their start and finish times by up to two hours, take up to five days of paid leave by the hour, and work shorter hours while raising children up to the end of primary school.
Source: Obayashi recruiting site, “Employee benefits”
How much do Obayashi employees earn?
The average annual salary at Obayashi Corporation was ¥12,393,648 in FY2025, up from ¥10,249,743 in FY2021. Japanese companies do not publish a median.
Source: Obayashi ESG Data Book (Social – Human resources)
Who is Obayashi's CEO?
Toshimi Sato, Representative Director, President and CEO since 2025. He succeeded Kenji Hasuwa, president from 2018.
Source: Obayashi company profile · corporate history
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Obayashi's official social accounts
Accounts linked from the footer of obayashi.co.jp; a full list is on Obayashi's social media page.