Muromachi Building Service
Muromachi Building Service is a Japanese building total-management company founded in 1964, offering integrated building maintenance, construction, and consulting services to enterprise building owners across Tokyo, Osaka, Nagoya, and Fukuoka, with Sumitomo Mitsui Banking Corporation as a major client.
- Company typePrivate
- Founded1964
- HeadquartersChuo, Japan
- Headcount251–500
- GTM typeB2B
- OfferingServices
What Muromachi Building Service does
Muromachi Building Service Co., Ltd. (室町ビルサービス株式会社) is a Japanese building total-management company founded in March 1964 and headquartered in Chuo-ku, Tokyo. The company operates two integrated service lines: Building Maintenance — covering daily, periodic, and special cleaning, equipment management (electrical, HVAC, water supply/drainage, elevators), security, sanitation management, environmental measurement, and owner-representation services — and Construction — covering building design and supervision, interior and exterior renovation, equipment upgrades, seismic and exterior-wall diagnostics, and signage. It serves building owners across the Kanto, Kansai, Chubu, and Kyushu regions via four offices (Tokyo, Osaka, Nagoya, Fukuoka) and a wholly-owned cleaning subsidiary, Humac Co., Ltd., which was consolidated into a unified cleaning operation in October 2025.
The company's core technology stack is built on 60+ years of accumulated building-management know-how, augmented in February 2026 by two AI modules — Automatic Quotation Creation AI and Detail Line Accumulation AI — developed in partnership with THIRD Corporation. These modules read PDF quotations from partner contractors, extract structured line-item data, and build a searchable historical price database to support standardized assessment and pricing decisions. The underlying platform is process-automation focused rather than customer-facing, and is the company's first disclosed AI capability.
Muromachi Building Service is a wholly-owned subsidiary of Muromachi Tatemono Co., Ltd. (室町建物株式会社), itself part of the Muromachi Group, and operates as an affiliated company (shiminkaisha) within the SMBC Group. Its revenue model combines managed services (building maintenance, cleaning) and professional services (construction projects, consulting), with FY2025 annual revenue of ¥14 billion (~290 employees). Pricing is quote-based and customized to each building owner's portfolio; the customer base is concentrated in enterprise accounts, with Sumitomo Mitsui Banking Corporation named as a major multi-site client, alongside a broader portfolio of Japanese building owners reached through direct consulting-led sales.
Muromachi Building Service firmographics
Firmographics- Name
- Muromachi Building Service
- Legal name
- 室町ビルサービス株式会社
- Website
- https://murobil.co.jp
- Company type
- Private
- Founded year
- 1964
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Muromachi Building Service is a Japanese building total-management company founded in 1964, offering integrated building maintenance, construction, and consulting services to enterprise building owners across Tokyo, Osaka, Nagoya, and Fukuoka, with Sumitomo Mitsui Banking Corporation as a major client.
- Ownership category
- akta.pro rank
Muromachi Building Service industry classification
Industry- Product category
- Facility Management Services
- NAICS
- Janitorial Services (561720), Plumbing, Heating, and Air-Conditioning Contractors (238220)
- SIC
- Operators Of Nonresidential Buildings (6512), Electrical Work (1731), Sanitary Services (4950)
- akta.pro primary industry
- Energy Services (Retrofits/Commissioning/Testing & Balancing) (IMAIABAI)
- akta.pro secondary industries
- Electrical Systems Maintenance (LV/MV, Switchgear, UPS) (BPABACAC), Plumbing & Sanitary Systems Maintenance (BPABACAD), Roof Inspection, Maintenance & Cleaning (HSAPAKAC)
Keywords
Where Muromachi Building Service is headquartered
LocationHeadquarters
- HQ city
- Chuo
- HQ country
- Japan
- HQ region
- Asia
Offices4 records
Markets served
Muromachi Building Service business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Supply Chain, Technology or R&D, Infrastructure
Revenue model
- Building Maintenance Services: Building cleaning, equipment maintenance, security services, sanitation management, and environmental measurement services. Provides comprehensive building management including daily cleaning, periodic cleaning, special cleaning, equipment management, and building management.
- Construction Services: Building exterior and interior construction work including renovations, retrofits, waterproofing, painting, electrical work, plumbing, and elevator installation. Services range from small-scale to large-scale construction projects.
- Consulting Services: Consulting for building owners including SDG initiatives, carbon neutrality, energy-saving equipment proposals, subsidy application assistance, and comprehensive building management consulting.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
Muromachi Building Service product offering
Product offeringCore offering
Muromachi Building Service provides comprehensive building management and construction services for building owners across Japan. The Building Maintenance division delivers daily/periodic/special cleaning, equipment management (electrical, HVAC, water supply/drainage, elevators), security, sanitation management, environmental measurement, and owner-representation services. The Construction division handles exterior/interior construction, renovations, waterproofing, painting, electrical work, plumbing, elevator installation, and building design and supervision. Consulting services cover SDG initiatives, carbon neutrality, energy-saving proposals, and government subsidy application assistance.
Product overview
Muromachi Building Service operates as a building total management company offering two core service lines: Building Maintenance (ビルメンテナンス) and Construction (建築). The Building Maintenance division provides cleaning services (daily, periodic, special), equipment management (electrical, HVAC, water supply/drainage, elevators), and building management support (owner representation, security, sanitation, environmental measurement). The Construction division handles building design, renovation, exterior/interior work, and equipment upgrades. The company has also recently introduced AI-powered tools—Automatic Quotation Creation AI and Detail Line Accumulation AI—developed in partnership with THIRD Corporation to automate quotation processing and pricing analysis.
Differentiator
Problem solved
Functional benefit
Products and services
- Building Maintenance (ビルメンテナンス) Comprehensive building maintenance services including daily/periodic/special cleaning, equipment management for electrical, HVAC, water supply/drainage, and elevators, plus security, sanitation management, environmental measurement, and owner-representation services. Targeted at building owners and corporate property managers in Japan.
- Building Construction (建築) Building construction and renovation services including exterior/interior construction (partitions, flooring, walls, ceilings), waterproofing, painting, electrical work, plumbing, elevator installation, equipment upgrades (HVAC, electrical), seismic diagnostics, exterior wall diagnostics, signage design and installation, and building design and supervision. Serves building owners needing small to large-scale construction projects.
- Building Management Consulting Consulting services for building owners covering SDG initiatives, carbon neutrality planning, energy-saving equipment proposals, government subsidy application assistance, and comprehensive building management consulting. Designed to support building owners navigating sustainability requirements and cost optimization.
Quantifiable outcome
- Developed AI-powered quotation system that reads PDF quotations and extracts names, specifications, and unit prices for standardized assessment
Companies that use Muromachi Building Service
Customer profileNamed customers1 record
Segments2 records
Ideal customer profiles2 records
Muromachi Building Service technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability2 records
Feature2 records
Muromachi Building Service partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- THIRD株式会社 (THIRD Inc.)importantTechnology partnership where THIRD developed and provides '見積自動作成AI' (Automatic Quotation Creation AI) and '明細行蓄積AI' (Line Item Accumulation AI) systems for Muromachi Building Service. These AI systems read PDF quotations from partner companies, extract and format data, and enable comparative analysis for fair price assessment and quotation standardization.
Scale indicators4 records
Recent moves7 records
Expansion highlights5 records
Muromachi Building Service competitors and assessment
Company assessmentDirect peers
- Aeon Delight Co., Ltd. Major Japanese building maintenance and facility services firm offering cleaning, equipment management, security and renovation to commercial property owners. Closely comparable service mix to Muromachi Building Service and a national footprint against which Muromachi competes in the multi-tenant commercial segment.
- Tokyu Community Corp. Japanese building management and construction services firm affiliated with the Tokyu Group, managing offices, residential and mixed-use properties. Comparable to Muromachi as a group-affiliated property and facility services provider combining maintenance with construction capability for building owners.
- Daiei Kankyo Co., Ltd. Japanese building cleaning and facility-services company providing janitorial, sanitation and related maintenance to commercial and institutional buildings. Closely comparable on Muromachi's cleaning and daily-maintenance operations.
- Sanki Engineering Co., Ltd. Long-established Japanese facility-engineering contractor specializing in HVAC, electrical and plumbing installation plus building maintenance services. Comparable on the MEP/HVAC equipment-management and building-system integration side of Muromachi's maintenance offering.
- Katokichi Co., Ltd. Japanese building maintenance and facility-services firm offering cleaning, equipment management and security for commercial buildings. Comparable on cleaning and facility operations, though typically smaller scale.
- Mitsubishi Jisho Community Co., Ltd. Wholly-owned subsidiary of Mitsubishi Estate that provides building management, cleaning, equipment operations and renovation services for office and commercial properties. Directly mirrors Muromachi's group-affiliated building total-management model with a similar banking/blue-chip tenant mix.
- Duskin Co., Ltd. Japan-based multi-service company whose core is professional cleaning, sanitation and facility hygiene services sold to commercial and institutional customers. Directly comparable to Muromachi's cleaning and sanitation-management revenue streams.
- We Support Co., Ltd. (formerly Nippon Building Maintenance): One of Japan's largest dedicated building maintenance companies, providing cleaning, equipment management and facility operations nationwide to office and commercial buildings. Directly competes with Muromachi for the same building-owner customer segment with an overlapping comprehensive-maintenance service model.
- Haseko Community Co., Ltd. Property-management and renovation arm of the Haseko construction group, providing building maintenance, repair and tenant-improvement services. Comparable to Muromachi's combined construction-and-maintenance offering to building owners.
Broad incumbents
- Takasago Thermal Engineering Co., Ltd. Large Japanese industrial HVAC and plant-engineering company that also provides facility construction, maintenance and energy-services work to commercial buildings. Overlaps with Muromachi's HVAC equipment-management and energy-saving services from a broader, listed-infrastructure vantage point.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Muromachi Building Service social profiles
Digital presenceMuromachi Building Service financial estimates
Financial estimateRevenue estimate
Valuation estimate
Muromachi Building Service leadership team
Management profileNumber of profiles
Profiles10 records
Muromachi Building Service subsidiaries and ownership
Company hierarchySubsidiaries2 records
Muromachi Building Service funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Muromachi Building Service M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Muromachi Building Service
What does Muromachi Building Service do?
Muromachi Building Service provides comprehensive building management and construction services for building owners across Japan. The Building Maintenance division delivers daily/periodic/special cleaning, equipment management (electrical, HVAC, water supply/drainage, elevators), security, sanitation management, environmental measurement, and owner-representation services. The Construction division handles exterior/interior construction, renovations, waterproofing, painting, electrical work, plumbing, elevator installation, and building design and supervision. Consulting services cover SDG initiatives, carbon neutrality, energy-saving proposals, and government subsidy application assistance.
Is Muromachi Building Service a public or private company?
Muromachi Building Service is a private company. It is classified as corporate owned and is currently operating.
When was Muromachi Building Service founded?
Muromachi Building Service was founded in 1964. It employs 251 to 500 people.
Where is Muromachi Building Service based?
Muromachi Building Service is headquartered in Chuo, Japan, in the Asia region.
How does Muromachi Building Service make money?
Three revenue lines are on record. Building Maintenance Services are the primary driver. The others are construction Services and consulting Services.
Who are Muromachi Building Service's main competitors?
Direct peers on record are Aeon Delight Co., Ltd., Tokyu Community Corp., Daiei Kankyo Co., Ltd., Sanki Engineering Co., Ltd., Katokichi Co., Ltd., Mitsubishi Jisho Community Co., Ltd., Duskin Co., Ltd., We Support Co., Ltd. (formerly Nippon Building Maintenance) and Haseko Community Co., Ltd.. Takasago Thermal Engineering Co., Ltd. is listed as a broad incumbent.
Does Muromachi Building Service have an API?
No public API is recorded for Muromachi Building Service.
What industry is Muromachi Building Service in?
Muromachi Building Service's product category is Facility Management Services. Its primary akta.pro industry code is IMAIABAI, Energy Services (Retrofits/Commissioning/Testing & Balancing), with a secondary code of BPABACAC, Electrical Systems Maintenance (LV/MV, Switchgear, UPS). Its NAICS code is 561720 and its SIC code is 6512.