Nankai Building Service Co., Ltd.

Nankai Building Service Co., Ltd. (南海ビルサービス株式会社) is a Japanese building and facility management company belonging to the NANKAI Group, the corporate group centered on Nankai Electric Railway. It was established on 1 April 1978 by Nankai Electric Railway and is headquartered in the Namba district of Chuo-ku, Osaka, with its main office in Nihonbashi-nishi, Naniwa-ku, Osaka. The company forms part of the NANKAI Group's leisure and service segment and is described as accounting for close to half of that segment's sales. The company's core business is building maintenance — equipment management, cleaning and security — for commercial facilities, office buildings, hotels, airports, logistics and airport facilities, medical and welfare facilities, condominiums and public facilities. Beyond maintenance, it provides construction management, equipment and building works, civil engineering and landscaping, renovation, greening and plant supply, real-estate management and brokerage, condominium management and bulk purchase/resale, and railway-related services such as maintenance of station automation equipment, power, signalling and communications equipment. It also engages in PPP/PFI projects and acts as a designated administrator for public facilities along the Nankai railway lines. Its client base spans commercial complexes, office buildings, logistics and airport facilities, medical and welfare institutions, condominiums and public facilities. Notable contracts include facility management for Namba CITY, Namba Parks, Namba SkyO, the Swissôtel Nankai Osaka (formerly Nankai South Tower Hotel Osaka), Hashimoto Municipal Hospital, Kishiwada City Namikiri Hall (managed jointly with the JTB Group) and cleaning management for the Suita City Football Stadium. As of the company profile, Nankai Building Service reported sales of 29.6 billion yen for the fiscal year ending March 2026 and 1,841 employees as of 1 April 2026, with capital of 100 million yen. Its representative is President and Director Noboru Yamamoto. Shareholders are NANKAI (Nankai Electric Railway) and Nankai Golf Management Co., Ltd. The company operates branches and sales offices in Tokyo, Sakai, Izumisano, Suita, Kobe, Wakayama, Hashimoto, Shingu, Tokushima, Matsuyama, Yokohama and Nagoya, and has subsidiaries including Kurakata Shoji Co., Ltd., Jowa Co., Ltd. and Sanken Co., Ltd. Positioning itself around the slogan of valuing people and developing professionals, the company promotes one-stop service, safety, security and quality, environmental initiatives, and advanced approaches such as paperless data integration, robotics and remote work support solutions.

Nankai Building Service was established on 1 April 1978 by Nankai Electric Railway Co., Ltd. as a building and facility management company within the NANKAI Group. In November 1978, shortly after its founding, it was entrusted with the equipment management operations of Namba CITY, an early anchor contract that tied the company to the development of the Namba district around Nankai's terminal. Through the 1980s and 1990s the company expanded its maintenance and management portfolio. In March 1990 it took on equipment management and cleaning for the Nankai South Tower Hotel Osaka, later known as the Swissôtel Nankai Osaka. In August 2002 it was entrusted with the integrated management of Namba Parks, and in December 2004 with the integrated management of Hashimoto Municipal Hospital, extending its reach from commercial facilities into public and medical institutions. In May 2006 the company opened a Tokyo branch, marking a step beyond its Kansai home base. In April 2011 it became designated administrator of Kishiwada City Namikiri Hall together with the JTB Group. In October 2015 it was entrusted with cleaning management for Suita City Football Stadium. In July 2016 it made Life Community Co., Ltd. a subsidiary. In October 2018 it took on the integrated management of Namba SkyO, another major Namba redevelopment property. In October 2019 the company concluded a naming-rights agreement with Kishiwada City for Kishiwada City Namikiri Hall, under which the facility was named 'Nankai Namikiri Hall' until 31 March 2022. In the 2020s the company has continued to expand through acquisitions and organizational change: its official news lists the acquisition and subsidiarization of Tokiwa Co., Ltd. (a holding company) and Sanken Co., Ltd. (an operating company) in September 2026, and an organizational restructuring in April 2026. As of the fiscal year ending March 2026 the company reported sales of 29.6 billion yen and 1,841 employees as of 1 April 2026.

• Established by Nankai Electric Railway Co., Ltd.

• Entrusted with equipment management for Namba CITY

• Entrusted with equipment management and cleaning for Nankai South Tower Hotel Osaka (now Swissôtel Nankai Osaka)

• Entrusted with integrated management of Namba Parks

• Entrusted with integrated management of Hashimoto Municipal Hospital

• Opened Tokyo branch

• Became designated administrator of Kishiwada City Namikiri Hall together with the JTB Group

• Entrusted with cleaning management for Suita City Football Stadium

• Made Life Community Co., Ltd. a subsidiary

• Entrusted with integrated management of Namba SkyO

• Concluded naming-rights agreement with Kishiwada City; facility named 'Nankai Namikiri Hall' until 31 March 2022

• Organizational restructuring announced

• Acquisition and subsidiarization of Tokiwa Co., Ltd. and Sanken Co., Ltd.

Integrated building and facility management provider within the NANKAI Group, emphasizing one-stop service, safety, quality, environmental responsibility and advanced DX/robotics solutions.

• Building maintenance (equipment management, cleaning, security)

• Construction management

• Equipment works

• Building works

• Civil engineering and landscaping

• Renovation works

• Greening and plant sales

• Planting management and green decoration

• Pot plant rental

• Condominium management (for sale and rental)

• Rental management

• Condominium purchase and resale

• Railway station equipment maintenance

• Power, signalling and communications maintenance

• PPP/PFI

1. 1南海ビルサービス | ビルメンテナンスをはじめとした総合管理サービス企業nankai-nbs.co.jp
2. 2沿革 | 南海ビルサービスnankai-nbs.co.jp
3. 3会社概要 | 南海ビルサービスnankai-nbs.co.jp
4. 4企業情報 | 南海ビルサービスnankai-nbs.co.jp
5. 5南海ビルサービス - Wikipediaja.wikipedia.org
6. 6南海建築服務 - Wikidatawikidata.org