OHBA

What OHBA does

OHBA (株式会社オオバ, ticker 9765) is a Japanese comprehensive construction consulting firm founded in 1922, headquartered in Tokyo, and listed on the Tokyo Stock Exchange Prime Market. The company serves national, prefectural, and municipal government agencies alongside private sector clients including real estate developers, railway operators (Sagami Railway), logistics facility operators (Prologis, GLP Japan), manufacturers (Panasonic), and individual property owners. Its service portfolio spans seven business divisions: City Planning (urban development and land readjustment), Design (infrastructure and landscape engineering), Environment (assessment and consulting), Geospatial Information (surveying and measurement), Land Management (civil engineering property maintenance and surveying), Systems Development (proprietary GIS applications), and Business Solutions (development agency, real estate consulting, solar power consulting).

The firm's underlying technology centers on GIS (Geographic Information System) and spatial data platforms, supplemented by proprietary products such as PAMLIT ver.3 (park asset lifecycle management), the Railway Management System for Sagami Railway, and Vacation Home Management Fee Systems. A 2026 digital transformation initiative introduced Microsoft 365 Copilot as a generative AI platform — including a proprietary Proposal Review AI Agent that won the Microsoft 365 Copilot Cup 2026 Most Outstanding Award — alongside AWS cloud services, Box information sharing, and Aidemy e-learning, on a 100% cloud (non-core) infrastructure.

OHBA generates revenue primarily through fee-based professional services contracts. Government work is secured via public tender at national, prefectural, and municipal levels, while private sector engagements are project-based. Per-project fees are negotiated based on scope and complexity, with multi-year contract cadences typical. The company maintains a five-region domestic branch network (Kanto, Tokai/Kinki, Tohoku/Hokkaido, Chugoku/Shikoku/Kyushu/Okinawa) and operates debt-free with a 68.2% equity ratio as of FY2022. Notable engagements include the Fujisawa Sustainable Smart Town, Tohoku earthquake reconstruction (Yamamoto Town, Onagawa, Ishinomaki), and the Kashiwanoha Aqua Terrace landscape design.

Name

OHBA

Legal name

株式会社オオバ (OHBA & CO.)

Website

https://k-ohba.co.jp

Company type

Public

Founded year

1922

Operating status

Operating

Headcount range

501–1,000 employees

Short description

OHBA (株式会社オオバ) is a Tokyo-based, TSE Prime-listed comprehensive construction consulting firm founded in 1922 that provides urban planning, civil engineering design, GIS systems, environmental assessment, and development agency services to Japanese government agencies and private sector clients across five regional branch networks.

Ownership category

akta.pro rank

Product category

Construction Consulting Services

NAICS

Engineering Services (54133)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Environmental Impact Assessment (EIA) & Due Diligence (BPAHAJAB)

Keywords

• Civil engineering consulting
• Urban planning services
• Geospatial information systems
• Land readjustment consulting
• Construction consulting services

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Services (Government): Fee-based professional consulting services contracted by national, prefectural, and municipal government agencies. Services include surveying, planning, design, GIS systems, environmental assessment, land readjustment, and disaster recovery support. Projects are typically awarded through public tender or direct consultation.
2. Professional Services (Private Sector): Fee-based consulting and project-based services for private sector clients including real estate developers, railway companies, logistics operators, and individual landowners. Services include development agency work, real estate consulting, solar power project consulting, land management, and GIS application development.
3. Land Development Agency Services: One-stop development agency services for clients including residential land developers, where OHBA handles land acquisition, development permits, and construction from start to finish on a project fee basis.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

OHBA is a comprehensive construction consulting firm delivering integrated services across seven business divisions: city planning (urban/land readjustment), infrastructure/landscape design, environmental assessment, geospatial information and surveying, civil engineering property maintenance, GIS-based systems development, and business solutions for real estate consulting and development agency work. The firm serves government agencies and private corporations across Japan through a network of regional branch offices, providing end-to-end consulting from initial surveying through construction oversight.

Product overview

OHBA (株式会社オオバ) is a comprehensive construction consulting firm offering integrated services across seven core business divisions: City Planning (まちづくり), Design (設計), Environment (環境), Geospatial Information (地理空間情報), Land Management (土地管理), Systems Development (システム開発), and Business Solutions (事業ソリューション). The company operates as a single integrated platform with specialized divisions rather than a modular software product. The Systems Development division provides proprietary GIS-based software products including PAMLIT ver.3 for park facility management support, Railway Management Systems for railway company land administration, and Vacation Home Management Fee Systems. The Business Solutions division offers development agency services, real estate consulting, and solar power generation consulting. All services are delivered through the company's nationwide office network spanning Kanto, Tokai/Kinki, Tohoku/Hokkaido, and Chugoku/Shikoku/Kyushu/Okinawa regions. Founded in 1922, OHBA celebrated its 100th anniversary and maintains DX-certified status (DX-2024-07-0029-02) reflecting its commitment to digital transformation.

Differentiator

Problem solved

Functional benefit

Products and services

• PAMLIT ver.3 (Park Asset Management System) A comprehensive park facility management support system that manages facility deterioration conditions, lifecycle cost calculations, emergency disaster response support, repair history, electrical/mechanical equipment management, and park user feedback/complaint tracking. Designed for municipalities managing parks and public green spaces.
• Railway Management System A GIS-based land management system for railway companies that manages land attributes including location, land category, area, and rights relationships. Features include land acquisition and removal registration, subdivision/merger procedures, electronic approval workflows, and land lease contract management.
• Vacation Home Management Fee System A fee management system specialized for vacation home/resort property management offices that handles fixed management fees and other paid services, including income/expense tracking, owner information management, and geographic parcel data, with future potential for GIS integration.
• Development Agency Services (開発行為の代行業務) Comprehensive one-stop development agency services covering land acquisition negotiations, development permits, and construction through to handover. Targets home builders and developers seeking finished home sites, including land readjustment and development permit services.
• Real Estate Consulting Services (不動産コンサルティング業務) Consulting services combining city planning expertise with real estate and inheritance tax planning for property owners. Addresses issues such as underutilized land, aging buildings, and compact city initiatives, delivered in partnership with tax accountant corporations.
• Solar Power Generation Consulting (太陽光発電事業コンサル) Consulting services for solar power generation businesses, including projects requiring civil engineering work such as roof-lease solar projects with battery storage for emergency power during disasters. Leverages civil engineering design expertise developed through city planning work.
• Civil Engineering Property Maintenance (土木管財維持管理) Property management services for government-held and private civil engineering assets, including regular site inspections, grass cutting, complaint and emergency response, fence installation, signage, tree trimming, waste removal, bird nest removal, sediment cleanup, and building opening/closure.
• Civil Engineering Surveying (土木管財測量調査) Comprehensive land surveying services including legal regulation surveys, land measurement, soil contamination surveys, lifeline surveys, asbestos surveys, PCB surveys, and cadastral information management systems.
• Geospatial Information Services (地理空間情報) Surveying and investigation services for construction projects including true north measurement, tunnel and long bridge inspections, critical structure and high-rise building center position measurement, and general construction surveying.
• City Planning Services (まちづくり) Comprehensive city planning and urban development consulting services including land readjustment projects, urban reconstruction, smart city development, compact city initiatives, and community development.
• Design Services (設計) Engineering design services for infrastructure, landscapes, and urban development projects, covering survey, planning, design, and construction oversight phases.
• Environmental Services (環境) Environmental assessment and consulting services for development projects, including soil contamination surveys, asbestos surveys, PCB surveys, and sustainability/environmental impact assessment.

Quantifiable outcome

• Achieved 15 consecutive periods of operating profit growth while experiencing declining revenues — demonstrating DX-driven efficiency gains
• +5 more outcomes

Named customers14 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature5 records

Partnerships

Five partnerships are on record, tiered core, supporting and minor.

• Microsoft Japan (日本マイクロソフト株式会社)coreTechnology or Integration · 29 May 2026Microsoft Japan partnered with OHBA through the Microsoft 365 Copilot Cup 2026 competition, where OHBA won the Most Outstanding Award. The collaboration involves Microsoft 365 Copilot as the foundational AI platform for OHBA's proprietary proposal correction AI agent, developed internally using Microsoft Copilot Studio and integrated with internal knowledge bases.
• Amazon Web Services (AWS)supportingTechnology or IntegrationOHBA participates in AWS-organized contests to enhance cloud and AI technology capabilities. AWS cloud services are referenced as part of OHBA's IT infrastructure alongside Microsoft 365 and Box. AWS contest participation serves as a mechanism for OHBA to develop practical AI and cloud skills among its technical staff.
• Aidemy Inc. (株式会社アイデミー)supportingTechnology or IntegrationAidemy provides e-learning platform services to OHBA for IT and DX skill development. OHBA uses Aidemy's online courses to upskill employees in AI, data science, and digital transformation competencies as part of its human resource development and cultural transformation strategy.
• Tax Accountant Corporation (税理士法人)supportingStrategic or Co-development PartnerOHBA's Business Solutions division has established a partnership with a tax accountant corporation to provide integrated urban planning and inheritance tax/real estate utilization consulting services for individual property owners. This collaboration enables OHBA to offer comprehensive 'urban planning and inheritance tax consulting' combining real estate and tax advisory services.
• Shoko Labo (ショコラボ)minorOthersShoko Labo is a welfare chocolate workshop in Yokohama that produces chocolate products for OHBA's shareholder benefit program. Established in 2012 to create employment for people with disabilities and increase their wages. OHBA has expanded the scope of this partnership from shareholders with 5,000+ shares to those with 2,500+ shares since November 2023 as part of enhanced social contribution activities.

Scale indicators9 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Yachiyo Engineering Co., Ltd. Comprehensive construction consultant in Japan covering urban planning, land readjustment, environment, and infrastructure design. Directly competes with OHBA for government tenders in the same regional markets.
• NTC Consultants Co., Ltd. Comprehensive construction consultant in Japan offering planning, surveying, design, and environment services. Direct competitor to OHBA in the regional mid-market.
• CTI Engineering Co., Ltd. Japanese construction consulting firm specializing in urban planning, river/sediment control, environment, and disaster prevention consulting for government clients. Closely overlaps OHBA's city planning and environment divisions.
• Oriental Consultants Co., Ltd. Japanese engineering consultancy offering urban development, transportation planning, and environmental consulting. Comparable in business model and customer base to OHBA.
• Pacific Consultants Co., Ltd. One of Japan's largest comprehensive construction consultants offering urban planning, surveying, design, environment, and GIS services to public and private sector clients. Direct comparable to OHBA across nearly every service line.
• NEWJEC Inc. Japanese engineering consultancy covering infrastructure, environment, and urban planning. Competes with OHBA for public-sector projects across Japan.
• Chodai Co., Ltd. Japanese civil engineering consultancy with strong land readjustment, bridge, and transportation infrastructure practices. Publicly listed on TSE; comparable in size and government-client focus.
• Nippon Koei Co., Ltd. Major Japanese engineering consultancy with civil engineering, urban planning, and environmental consulting practices, listed on TSE Prime. Comparable in scope, customer base (government and developers), and revenue scale to OHBA.

Others

• Zenrin Co., Ltd. Japanese map data and GIS software provider serving government and enterprise customers. Adjacent to OHBA's GIS systems business as a data/infrastructure partner rather than direct consulting competitor.

Emerging players

• Pasco Corporation: Japanese geospatial information specialist with strong surveying, mapping, and GIS capabilities. Overlaps with OHBA's Geospatial Information division and Systems Development GIS products.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCx-D36Mn5l7GRwa4yyrX7Ew

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 OHBA