Gojinsha Planning Institute Co., Ltd.

What Gojinsha Planning Institute Co., Ltd. does

Gojinsha Planning Institute Co., Ltd. (株式会社合人社計画研究所) is the core operating company of the Gojinsha Group (合人社グループ), headquartered in Hiroshima, Japan, and recognized as Japan's fourth-largest independent condominium management company. The firm delivers full-service management for residential condominium associations — covering front-office operations, caretaker services, accounting, repair coordination, and large-scale renovation consulting — across 323,579 managed units and 6,324 associations as of March 2026. The underlying technology stack is a conventional property-management operations platform supporting online resident portals (お知らせネット), partner access systems (合人社ビズネット), the monthly Wendy Net publication (1.1 million copies circulated), and a 20-point building condition assessment tool; ISO 9001, ISO 14001, and ISO/IEC 27001 certifications cover quality, environmental, and information security management across the group.

Revenue is generated primarily through recurring monthly management fees billed per unit to condominium associations, supplemented by government contract fees across 127 PPP/PFI mandates (as of June 2026, including social welfare facilities, school catering centers, and leisure/sports zone developments), insurance agency commissions earned by subsidiary Gojin City Service Co., Ltd. on policies placed with nine carrier partners, real estate leasing, and hotel operations. Go-to-market is enterprise field sales to management associations, reinforced by a distribution network of 20+ subsidiary and affiliated companies including developer-backed joint ventures with Panasonic Homes (51%/49% JV operating 19 branches), Sekisui House, Open House, and the newly formed Misawa Home JV (April 2026) targeting management replacement projects. The company is private, with parent holding entity 株式会社合人社グループ, and reports no venture capital, private equity, or public listing.

Name

Gojinsha Planning Institute Co., Ltd.

Legal name

株式会社合人社計画研究所

Website

http://www.gojin.co.jp

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Gojinsha Planning Institute is the core operating company of Japan's Gojinsha Group, providing full-service condominium management across 323,579 units and 6,324 associations, plus PPP/PFI public infrastructure projects, insurance agency services, and adjacent real estate operations for residential management associations and municipalities nationwide.

Ownership category

akta.pro rank

Product category

Property Management

NAICS

New Multifamily Housing Construction (except For-Sale Builders) (236116), Management of Companies and Enterprises (551)

SIC

Operators Of Apartment Buildings (6513), Operators Of Nonresidential Buildings (6512), Hotels & Motels (7011)

akta.pro primary industry

Condominium Association Management (BPAJAHAA)

akta.pro secondary industry

Mixed-Use Community Association Management (BPAJAHAF)

Keywords

• Condominium management services
• Property management services
• PPP/PFI consulting
• Building maintenance services
• Facility management

Headquarters

HQ city

Hiroshima

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Condominium Management Services: Recurring management fee revenue from managing 323,579 residential units across 6,324 condominium associations. Services include front-office operations (フロント業務), caretaker services (管理員業務), accounting and payroll (会計/出納), repair contractor coordination, and large-scale renovation consulting. Revenue is recurring in nature, billed monthly per managed unit.
2. PPP / PFI Public Infrastructure Projects: Gojinsha serves as operator or advisor on 127 public-private partnership (PPP) and Private Finance Initiative (PFI) projects, including social welfare facility operations, public catering centers, and leisure/sports zone development. Revenue from these projects includes management fees, facility operation fees, and project development fees, typically multi-year contract structures with government entities.
3. Insurance Agency Services: Subsidiary Gojin City Service Co., Ltd. operates as a damage insurance agency selling condominium comprehensive insurance policies (マンション総合保険) and related property/liability coverage to managed condominium associations. Revenue comes from insurance commissions from multiple partner insurers including Mitsui Sumitomo Insurance, Tokyo Marine, Sompo Japan, Aioi Nissay Dowa, and others.
4. Real Estate Leasing: Real estate leasing operations (不動産賃貸事業) as one of six core business lines, providing rental property management alongside building management services.
5. Hotel Operations: Hotel business (ホテル事業) as a diversified revenue stream, operating hospitality properties under the Gojinsha Group umbrella.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Gojinsha Planning Institute Co., Ltd. is the core operating company of the Gojin Group, providing comprehensive condominium (分譲マンション) management services across Japan. It manages 323,579 residential units across 6,324 condominium associations and offers front-office operations, caretaker services, accounting, repair coordination, large-scale renovation consulting, and PPP/PFI public infrastructure project services. The company operates through a network of 20+ subsidiary and affiliated companies and is Japan's fourth-largest independent condominium management company.

Product overview

Gojinsha Planning Institute Co., Ltd. is the core operating company of the Gojinsha Group, providing comprehensive condominium management services and building consulting. The company's main service portfolio includes: (1) Condominium Management Services as the core offering, managing 323,579 units across 6,324 associations; (2) PPP/PFI Project Services handling 127 government projects; (3) Real Estate Rental Business; (4) Facility Management for commercial properties; (5) Hotel Business operations; and (6) Social Contributions programs. Supporting services include Wendy Net (monthly publication with 1.1 million circulation), Online Notification Service for management reports, Gojin Biz Net for business partners, and a 20-point building check assessment tool. The company also provides insurance agency services through its subsidiary Gojinsha City Service Co., Ltd., offering specialized condominium insurance products from multiple partner insurance companies.

Differentiator

Problem solved

Functional benefit

Products and services

• Condominium Management Services (マンション管理)

Quantifiable outcome

• 323,579 units under management across 6,324 associations as of March 2026
• +2 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

13 partnerships are on record, tiered core and minor.

• Misawa Home Co., Ltd. (ミサワホーム株式会社)coreStrategic or Co-development Partner · 5 March 2026Capital and business alliance signed March 5, 2026 between Misawa Home Co., Ltd. and Gojinsha Planning Institute Co., Ltd., resulting in the establishment of a joint venture company on April 1, 2026. The joint venture, Misawa Home Gojinsha Life Management Co., Ltd., addresses Japan's problem of mismanaged condominiums by combining Misawa Home's housing development network and comprehensive knowledge with Gojinsha's operational track record of 300,000+ managed units. The venture targets acquiring management replacement projects for existing condominiums, aiming for over 2,500 units under management by fiscal year 2030.
• Panasonic Homes Co., Ltd. (パナソニックホームズ株式会社)coreStrategic or Co-development PartnerJoint venture company Panasonic Homes Gojin Community Co., Ltd. (パナミックホームズ・合人社コミュニティ株式会社) — established October 2013 with capital split 51% Panasonic Homes / 49% Gojinsha Planning Institute. Operates as a condominium management company with 19 branch offices across Japan including Tokyo, Kansai, Hiroshima, Fukuoka, Okinawa, and regional offices.
• Sekisui House Ltd. (積水ハウス株式会社)coreStrategic or Co-development PartnerJoint venture company Sekisui Gojin Town Management Co., Ltd. (セキスイ合人社タウンマネジメント株式会社) operates as a condominium management company under the Gojinsha Group umbrella, serving units developed by Sekisui House.
• Mitsui Sumitomo Insurance Co., Ltd. (三井住友海上火災保険株式会社)coreChannel Partner/ Reseller/ DistributorInsurance partner for Gojin City Service Co., Ltd., the group's insurance agency subsidiary. Gojin City Service sells Mitsui Sumitomo's GK Sumai no Hoken (GK住宅保険) and other property/casualty products to managed condominium associations.
• Tokyo Marine Holdings Inc. (東京海上日動火災保険株式会社)coreChannel Partner/ Reseller/ DistributorInsurance partner for Gojin City Service Co., Ltd., providing the 'Mansion Management Association Sumai no Hoken' (マンション管理組合のための住まいの保険) product to managed condominium associations.
• Sompo Japan Holdings Inc. (損害保険ジャパン株式会社)coreChannel Partner/ Reseller/ DistributorInsurance partner for Gojin City Service Co., Ltd., providing mansion comprehensive insurance (マンション総合保険) products to managed condominium associations.
• Aioi Nissay Dowa Insurance Co., Ltd. (あいおいニッセイ同和損害保険株式会社)coreChannel Partner/ Reseller/ DistributorInsurance partner for Gojin City Service Co., Ltd., one of nine insurance company partners providing products through the group's insurance agency operations.
• Nisshin Fire & Marine Insurance Co., Ltd. (日新火災海上保険株式会社)coreChannel Partner/ Reseller/ DistributorInsurance partner for Gojin City Service Co., Ltd., offering Mansion Doctor fire insurance (マンションドクター火災保険) with special condominium association rider.
• Kyoei Kasai Insurance Co., Ltd. (共栄火災海上保険株式会社)minorChannel Partner/ Reseller/ DistributorInsurance partner for Gojin City Service Co., Ltd., providing personal fire comprehensive insurance products.
• AIG General Insurance Co., Ltd. (AIG損害保険株式会社)minorChannel Partner/ Reseller/ DistributorInsurance partner for Gojin City Service Co., Ltd., providing Home Protect comprehensive insurance products.
• Chubb Insurance Co., Ltd. (Chubb損害保険株式会社)minorChannel Partner/ Reseller/ DistributorInsurance partner for Gojin City Service Co., Ltd., providing facility owner (management) liability insurance (施設所有 管理責任保険).
• Hiroshima Small and Medium Enterprise Mutual Aid Association (広島県中小企業共済協同組合)minorChannel Partner/ Reseller/ DistributorInsurance partner for Gojin City Service Co., Ltd., providing mutual aid/cooperative fire insurance (火災共済) products.
• Open House Group Co., Ltd. (株式会社オープンハウス)coreStrategic or Co-development PartnerJoint venture company Open House Gojin Community Co., Ltd. (株式会社オープンハウス合人社コミュニティ) operates as a condominium management company, established February 2022.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Nippon Kanzai Co., Ltd. Nippon Kanzai is a major Japanese property and building management firm with significant condominium management operations, listed on the Tokyo Stock Exchange. Comparable to Gojinsha as a comprehensive building management provider with overlapping condominium management, facility management, and public-sector PPP exposure.
• Nihon Housing Co., Ltd. (Housing Management Division): Nihon Housing is a long-established Japanese condominium management specialist, with similar scale to Gojinsha and a national footprint. Directly comparable as a focused condominium association manager targeting the same Japanese mid-market and large-scale condominium segment.
• Mitsubishi Estate Residence Co., Ltd. Mitsubishi Estate Residence is a leading condominium management company affiliated with Mitsubishi Estate, one of Japan's largest developers. Directly comparable to Gojinsha in scale, geographic coverage, and developer-affiliated service delivery for Japanese condominium associations.
• Tokyu Community Corp. Tokyu Community is one of Japan's largest condominium management companies, part of the Tokyu Fudosan Holdings group, managing hundreds of thousands of units nationwide. Directly comparable to Gojinsha as a large-scale, professional condominium manager serving Japanese condominium associations with similar service portfolios.
• Daiwa House Asset Management Co., Ltd. Daiwa House Asset Management is Japan's largest condominium management company, affiliated with Daiwa House Industry, and a major competitor in managing large-scale condominium portfolios. Directly comparable to Gojinsha as a top-tier nationwide condominium manager, with deeper developer backing.

Broad incumbents

• Sumitomo Realty & Development Co., Ltd. (Community Management): Sumitomo Realty & Development is one of Japan's largest integrated real estate developers with a substantial in-house condominium management operation. Comparable to Gojinsha as a major nationwide condominium manager, but operating within a much broader developer-led real estate portfolio.
• Tokyo Tatemono Real Estate Solutions Co., Ltd.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries29 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 Gojinsha Planning Institute Co., Ltd.