ISUZU

What ISUZU does

Isuzu Building Maintenance Co., Ltd. (いすゞビルメンテナンス株式会社) is a privately held Japanese building maintenance services company headquartered in Yokohama, Kanagawa Prefecture. Founded in 1974 as Sumida Building Management Co., Ltd. and renamed to its current form after a 2003 spin-off from Isuzu Estate Co., Ltd., the company is jointly owned by Isuzu Motors Limited (いすゞ自動車株式会社) and Crop's Co., Ltd. (株式会社クロップス). It operates exclusively in the Kanto region of Japan, with seven physical locations across Tokyo, Yokohama, Fujisawa, and Tochigi, employing approximately 1,370 staff as of April 2026.

The company delivers a one-stop integrated facility management offering across seven service modules: cleaning services (清掃), equipment/facility management (設備管理), security services (警備), office support (オフィスサポート), dormitory and corporate housing management (寮・社宅管理), public facility management (公共施設管理, including PFI/PPP projects), and construction/renovation (工事). Proprietary process elements include orbital drive cleaning machines (O-Bot) and alkaline ionized water technology for environmentally conscious cleaning. The company holds ISO 9001 (since 2000), ISO 14001 (since 2004), and a portfolio of government-issued operating licenses covering security, construction, water tank cleaning, environmental health, fire equipment, and healthcare-related services. Named customers include Isuzu Hospital, Omori Bellport (since 1991), and Isuzu Motors Fujisawa Factory.

The business model is a sales-led B2B professional services model: long-term contracts with corporate, government, and residential property clients for ongoing facility maintenance or project-based work. Revenue is generated through fee-for-service contracts (revenue model classified as professional_services), with pricing handled through direct inquiry and consultation rather than publicly disclosed rate cards. The company reports annual revenue of 6.77 billion JPY for FY ending March 2026. Marketing is conducted through the corporate website, a Facebook page (since November 2019), and direct inquiry channels; no digital marketing automation or paid acquisition channels are evident. The company operates with a hierarchy of geographic business divisions (Yokohama, Tokyo/Hiroki, Fujisawa, Group, Tochigi) plus a Sales Promotion Division established in 2022.

Name

ISUZU

Legal name

Isuzu Building Maintenance Co., Ltd.

Website

https://isuzu-bm.co.jp

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Isuzu Building Maintenance Co., Ltd. is a privately held Japanese facility services firm (founded 1974, ~1,370 staff) providing integrated cleaning, equipment management, security, office support, dormitory management, public facility management, and construction services to corporate, government, and residential clients across the Kanto region.

Ownership category

akta.pro rank

Product category

Building Maintenance Services

NAICS

Facilities Support Services (56121), Services to Buildings and Dwellings (5617), Plumbing, Heating, and Air-Conditioning Contractors (23822), Other Services to Buildings and Dwellings (561790)

SIC

Services-Facilities Support Management Services (8744), Services-To Dwellings & Other Buildings (7340), Services-Management Services (8741), Services-Miscellaneous Repair Services (7600)

akta.pro primary industry

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA)

akta.pro secondary industries

Facilities Helpdesk & Service Request Management (FM Call Center/Dispatch) (IMAIALAG), Association Maintenance, Vendor & Capital Project Management (BPAJAHAM), Construction Site Trailer & Temporary Facilities Cleaning (HSAEADAJ)

Keywords

• Building maintenance services
• Facility management
• Commercial cleaning services
• Security services
• Public facility operations

Headquarters

HQ city

Yokohama-shi

HQ country

Japan

HQ region

Asia

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales

Revenue model

1. Building Maintenance Services: Comprehensive building maintenance services including cleaning, equipment management, security, office support, dormitory/housing management, public facility management, and construction services provided on a contracted basis.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Isuzu Building Maintenance Co., Ltd. provides integrated building maintenance services to corporate, government, healthcare, residential, and public-sector clients across the Kanto region of Japan. Its core offering is a unified set of seven service lines — cleaning, equipment/facility management, security, office support, dormitory and corporate housing management, public facility management (including PFI/PPP operations), and construction/renovation — delivered through stationed staff and scheduled service visits. Services are sold on per-project or ongoing contract bases to facility owners, property managers, and corporate clients.

Product overview

Isuzu Building Maintenance Co., Ltd. provides comprehensive building maintenance services as a single unified offering consisting of seven integrated service modules: cleaning services (清掃), equipment/facility management (設備管理), security services (警備), office support services (オフィスサポート), dormitory and corporate housing management (寮・社宅管理), public facility management services (公共施設管理サービス), and construction/renovation services (工事). The company also operates a flower shop called Belle Claire (ベルクレール). These services work together to provide complete building environment management for residential, commercial, and public facilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Cleaning Services (清掃サービス) Comprehensive cleaning services for intelligent buildings, apartments, hotels, hospitals, shopping malls, schools, and factories, including daily cleaning, periodic cleaning, wall cleaning, air quality management, pest control, water tank cleaning, air quality testing, and landscaping. Targeted at commercial, residential, healthcare, and public-sector facility owners.
• Equipment and Facility Management (設備管理) Safety and continuous maintenance management of buildings and facilities through constant monitoring of equipment operation, inspection, maintenance, and conservation, including electrical, HVAC, water supply and drainage, fire safety equipment, water tank cleaning, drainage pipe washing, and water quality testing. Targeted at owners and operators of commercial, industrial, and residential buildings.
• Security Services (警備サービス) Security services combining experienced security staff deployment with mechanical security systems to provide comprehensive protection for tangible and intangible property and assets, including access control. Targeted at commercial facilities, residential complexes, and corporate properties.
• Office Support Services (オフィスサポート) Office support services including reception, internal mail delivery, and executive vehicle and bus operation services for employee transportation, with customized solutions based on client needs. Targeted at corporate offices requiring reception, mail, and transportation support.
• Dormitory and Corporate Housing Management (寮・社宅管理) Corporate welfare management services for company dormitories and corporate housing, optimizing operations from both people and building perspectives while maintaining ties with local communities. Targeted at companies operating employee dormitories and corporate housing facilities.
• Public Facility Management Services (公共施設管理サービス) Stable management and operation of regional public facilities through private finance initiatives (PFI) and public-private partnerships (PPP), proposing new values to local residents. Targeted at municipal governments and public sector operators.
• Construction and Renovation Services (工事) Construction and renovation services for maintaining building aesthetics and asset value, including repair work, restoration for rental apartments, anti-slip treatments, wall and flooring replacement, and various maintenance projects. Targeted at property owners, managers of rental apartments, and building operators.

Quantifiable outcome

• Environmental management system ISO 14001 certified since 2004 for cleaning operations
• +1 more outcomes

Named customers3 records

Segments6 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Isuzu Motors (いすゞ自動車株式会社)parentOthersParent company shareholder. Isuzu Motors is the parent company and one of the two shareholders (株式会社クロップス being the other), providing corporate affiliation and potential business synergies in automotive manufacturing facility management.

Scale indicators2 records

Recent moves11 records

Expansion highlights5 records

Others

• Comforia Residential REIT (Tokyu): While a REIT rather than a service provider, it is a significant downstream customer of Japanese FM companies for residential property management — a relevant upstream customer peer for ISUZU's dormitory and housing management services.

Direct peers

• Nippon Building Maintenance Co., Ltd. One of the largest Japanese building maintenance companies offering cleaning, equipment management, security, and facility management. Direct competitor for office and commercial building contracts across Japan.
• Tokyu Community Corp. Property and facility management subsidiary of Tokyu Group, providing building management, cleaning, and security services, primarily in the Tokyo metropolitan area. Comparable geographic and customer overlap.
• Daiseki Co., Ltd. Japanese facility and environmental services company providing cleaning, maintenance, and waste management for commercial and industrial properties. Similar revenue scale and service breadth.
• Sanki Engineering Co., Ltd. Japanese building services firm focused on HVAC, plumbing, electrical, and facility management for commercial and industrial buildings. Overlaps directly with ISUZU's equipment management and facility operations offering.
• Daiwa House Community Co., Ltd. Daiwa House Group's property and facility management arm offering cleaning, maintenance, and renovation for residential and commercial properties. Comparable integrated service portfolio.
• AEON Delight: Major Japanese IFM company providing cleaning, security, facility management, and construction services to commercial and retail properties. Closest direct comp to ISUZU Building Maintenance by integrated service model and B2B focus.

Broad incumbents

• ALSOK (Sohgo Security Services): Japan's largest security services provider with extensive facility management capabilities. Overlaps with ISUZU's security services line but operates as a much larger, broader incumbent.
• Mitsubishi Estate Group — Mitsubishi Jisho Property Management: Property and facility management arm of Mitsubishi Estate, one of Japan's largest real estate developers. Competes for premium office and commercial building maintenance contracts in Tokyo.

Regional players

• KT Properties (Kintetsu): Mid-sized Japanese property management and building maintenance provider serving primarily Kansai and other regional markets. Comparable service portfolio but different geographic focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/isuzu.building.maintenance.co.jp

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ISUZU