Hirokazu Tachibana System Service Company

What Hirokazu Tachibana System Service Company does

Hirokazu Tachibana System Service Company (株式会社立花宏和システムサービス) is a Japanese mechanical services subcontractor headquartered in Amagasaki, Hyogo Prefecture. The company was formed in 2010 through the merger of predecessor entities tracing back to 1977 and 1979, and operates as a wholly-owned subsidiary of Tachibana Erectec Co., Ltd. (株式会社立花エレテック). As of October 2025, the company employs 20 people and carries registered capital of ¥100 million.

The company provides installation and maintenance services across five core mechanical disciplines: heating, ventilation and air conditioning (HVAC); plumbing and sanitation; fire protection systems; mechanical equipment installation; and refrigeration and air-conditioning facilities. Its service footprint covers seven Kansai-region prefectures (Hyogo, Osaka, Kyoto, Nara, Mie, Wakayama and Shiga). The business is structured around project-based subcontracting to general contractors and developers, with publicly listed clients including Obayashi, Daiwa House, Haseko and Milbon. Supporting qualifications include multiple construction-industry permits, high-pressure gas safety certification, refrigerant recovery credentials, and designation as a Mitsubishi Electric authorized service shop.

Revenue is generated through contract-based mechanical installation and ongoing maintenance work performed on commercial and industrial construction projects within the Kansai region. The company acts as a specialized regional execution arm within the Tachibana Erectec group, leveraging its licensed trades and brand-certified service credentials to win subcontracts on projects led by major Japanese construction firms. The combination of narrow geographic focus, project-based revenue mechanics, and small headcount implies modest scale and revenue that is closely tied to the local construction pipeline rather than recurring or subscription-based contracts.

Name

Hirokazu Tachibana System Service Company

Legal name

株式会社立花宏和システムサービス

Website

https://tachibanakouwa.co.jp

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

Hirokazu Tachibana System Service Company is a Kansai-based Japanese mechanical services subcontractor providing HVAC, plumbing, fire protection, and refrigeration installation and maintenance to major general contractors. It operates as a 20-person wholly-owned subsidiary of Tachibana Erectec.

Ownership category

akta.pro rank

Product category

Building Mechanical Equipment Construction Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220), Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance (8113)

SIC

Services-Miscellaneous Repair Services (7600), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

HVAC & Refrigeration Contracting (IMAFALAB)

akta.pro secondary industries

HVAC Service, Maintenance & Repair (BPABACAA), HVAC Installation, Service & Repair (IMAIABAA)

Keywords

• HVAC construction services
• Plumbing and sanitation equipment
• Fire protection installation
• Mechanical equipment contracting
• Building maintenance services

Headquarters

HQ city

Amagasaki

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Construction Contract Services: New construction and renovation contracting for HVAC, plumbing, and mechanical equipment systems in residential, commercial, and industrial buildings. Projects include air conditioning equipment installation, plumbing and sanitation systems, and fire protection equipment. Revenue is generated through project-based contracts with general contractors and property owners.
2. Maintenance and Service Operations: Ongoing maintenance, troubleshooting, and adjustment services for installed equipment systems. Includes regular maintenance, emergency repairs, commissioning and adjustment. Also handles small-scale installation and replacement of HVAC equipment, ventilation fans, and lighting fixtures by company employees.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Hirokazu Tachibana System Service Company provides building mechanical equipment construction and lifecycle maintenance services, specializing in plumbing and sanitation systems, air conditioning (HVAC) equipment, fire protection systems, mechanical equipment installation, and refrigeration/air conditioning facility work for residential, commercial, industrial, medical, welfare, and hospitality buildings. Services span the full building lifecycle from planning and design through new construction, renovation, commissioning, and ongoing maintenance/after-service. The company primarily serves general contractors and property owners in the Kansai region of Japan.

Product overview

株式会社立花宏和システムサービス (Hirokazu Tachibana System Service Company) is a construction and building equipment services firm offering integrated services for plumbing, sanitation, and air conditioning equipment. The company provides a unified portfolio of core services including 給排水衛生設備工事 (plumbing and sanitation equipment), 空気調和設備工事 (air conditioning equipment), サービス業務 (maintenance and service operations), 消防設備工事 (fire protection equipment), 機械器具設置工事 (mechanical equipment installation), and 冷凍空調施設工事 (refrigeration and air conditioning facilities). Services span from planning and design through construction, installation, and after-sales maintenance and renewal.

Differentiator

Problem solved

Functional benefit

Products and services

• Plumbing and Sanitation Equipment Construction (給排水衛生設備工事) Planning, design, and construction of water supply, drainage, and sanitation equipment systems for collective housing, factories, office buildings, and other building types; described as the company's most accomplished field since founding.
• Air Conditioning Equipment Construction (空気調和設備工事) Air conditioning system design and installation for new construction and renovation projects, addressing energy efficiency, environmental compliance, and regulatory requirements for office buildings, commercial facilities, and industrial plants.
• Service Operations / Maintenance (サービス業務) Maintenance, troubleshooting, commissioning, and adjustment services for plumbing, sanitation, and air conditioning equipment; small-scale installation and replacement of air conditioning units, ventilation fans, and lighting fixtures handled directly by company employees from proposal through installation.
• Fire Protection Equipment Construction (消防設備工事) Fire protection equipment installation and construction services; company is registered with Osaka Chuo Fire Department as a fire equipment business.
• Mechanical Equipment Installation (機械器具設置工事) Mechanical equipment installation construction services for building and industrial projects.
• Refrigeration and Air Conditioning Facilities (冷涑空調施設工事) High-pressure gas sales, recovery, and destruction services; certified refrigeration and air conditioning facility construction services covered by Class 1 fluorinated refrigerant recovery registration across Osaka, Nara, Hyogo, Kyoto, Wakayama, and Shiga prefectures.

Named customers8 records

Segments5 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves5 records

Expansion highlights3 records

Broad incumbents

• Kandenko: Large Japanese electrical and mechanical equipment contractor with significant HVAC and building systems work — overlapping in mechanical equipment installation but with a stronger electrical infrastructure orientation.
• Takasago Thermal Engineering: One of Japan's largest HVAC mechanical engineering contractors, providing design, construction, and maintenance of air conditioning, plumbing, and sanitary systems for buildings — directly comparable services to Tachibana Kowa's core offerings, but at national scale.
• Sanki Engineering: Major Japanese building equipment contractor specializing in HVAC, plumbing, electrical, and facility maintenance — overlapping service portfolio with Tachibana Kowa across new construction, renovation, and after-service.
• Shinryo Corporation: Long-established Japanese HVAC mechanical contractor providing air conditioning, refrigeration, plumbing, and electrical systems for buildings — directly overlapping in new installation and after-sales service offerings.
• NTT Facilities: Building facility management and mechanical services provider handling HVAC, electrical, and building operations for commercial and telecom clients — comparable in integrated building equipment services with a stronger facility-management tilt.
• Taikisha: Industrial HVAC and paint finishing systems contractor with significant building air-conditioning business; comparable in core mechanical equipment services but with industrial-process specialization beyond Tachibana Kowa's commercial/residential focus.

Regional players

• Yurtec: Electrical and mechanical infrastructure contractor operating primarily in the Tohoku and Kanto regions — overlapping services (HVAC, mechanical equipment) but distinct geographic focus, making it a regional peer rather than direct Kansai competitor.

Direct peers

• Taisei Oncho (大成温調): Mid-sized Japanese HVAC and plumbing contractor serving commercial and residential buildings — comparable scale and service profile to Tachibana Kowa with new construction, renovation, and maintenance capabilities.
• Dai-Dan: Japanese mechanical and electrical contractor focused on HVAC, plumbing, and sanitary systems for buildings; comparable mid-sized player with similar project mix and full-lifecycle service model.
• Nihon Air Conditioning Service: Mid-cap Japanese HVAC service and maintenance specialist focused on building air-conditioning operation, maintenance, and renewal — comparable to Tachibana Kowa's maintenance/repair service stream and energy retrofit exposure.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Hirokazu Tachibana System Service Company