What EPCO does

EPCO Co., Ltd. (株式会社エプコ, TSE: 2311) is a Tokyo-headquartered architectural design and housing lifecycle services company that has operated since 1990 and served Japan's residential construction industry for over three decades. The company operates three integrated business segments: (1) Design Services covering plumbing, electrical, energy-saving, rain gutter, and housing-equipment design for major Japanese housing manufacturers and builders — handling approximately 14% of Japan's annual low-rise residential housing starts and over 1 million cumulative units; (2) Renewable Energy Services, delivered primarily through the TEPCOホームテック joint venture with Tokyo Electric Power and the 'Ene Kari' zero-initial-cost subscription model covering solar PV, storage batteries, EcoCute, IH cookers, and V2H equipment; and (3) Maintenance Services, operating a 24/7/365 three-location call center network (Tokyo, Okinawa, Kanazawa) that supports approximately 1.8 million households and processes 700,000+ annual after-maintenance inquiries.

The technology backbone combines proprietary CAD and BIM systems maintained by 50+ in-house systems development personnel, Japan-China collaborative design operations with 400+ designers (Shenzhen BIM Center, Jilin CAD Center, Foshan JV with China LESSO Group), and a growing AI capability stack including the August-2026-launched AI Transformation Department (AX). Distribution is multi-channel: direct enterprise sales to housing manufacturers, JV/wholly-owned subsidiaries for construction execution (ENE's) and renewable energy sales (TEPCOホームテック), and partnership channels via housing developers for new-build 'Ene Kari' adoption.

Revenue is generated through a mix of professional-services design fees, recurring subscription income from 'Ene Kari', and BPO/maintenance service fees. Major shareholders include no identified parent; the founder-led company (CEO 岩崎辰之, who has led since 1988) maintains strategic partnerships with Tokyo Electric Power (TEPCOホームテック), Mitsui & Co. (MEDX), and China LESSO Group (Foshan JV). FY2025 revenue was approximately ¥39.9B yen with a 10-year average ROE of 10%, an 80% equity ratio, and a 50% dividend payout ratio over the past five years.

Name

EPCO

Legal name

株式会社エプコ (EPCO Co., Ltd.)

Website

https://epco.co.jp

Company type

Public

Founded year

1990

Operating status

Operating

Headcount range

501–1,000 employees

Short description

EPCO is a Japanese housing-lifecycle services company providing equipment design (covering ~14% of Japan's annual low-rise housing starts), renewable-energy subscriptions via TEPCO JV, and 24/7 maintenance call-center operations to housing manufacturers, builders, and 1.8 million managed households.

Ownership category

akta.pro rank

Product category

Residential Housing Infrastructure Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Services to Buildings and Dwellings (5617), Appliance Repair and Maintenance (811412), Consumer Goods Rental (5322)

SIC

Services-Computer Integrated Systems Design (7373), Auto Controls For Regulating Residential & Comml Environments (3822), Services-To Dwellings & Other Buildings (7340)

akta.pro primary industry

Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ)

akta.pro secondary industry

Solar Balance-of-Plant EPC (Piles/Foundations, Trenching, Combiner Networks) (EUAEADAJ)

Keywords

• Residential equipment design
• Renewable energy services
• Maintenance call center
• Housing BIM solutions
• Zero upfront solar subscription

Headquarters

HQ city

Sumida

HQ country

Japan

HQ region

Asia

Offices12 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Design Services (設計サービス): Provides comprehensive equipment design services (plumbing, electrical, energy-saving, rain gutters, housing equipment) to housing companies. Generates revenue through design fees per project/unit, supporting approximately 14% of Japan's low-rise residential housing equipment design annually.
2. Renewable Energy Services (再エネサービス): The ' Ene Kari' (エネカリ) subscription model provides solar PV, storage batteries, EcoCute, IH cooking heaters, and V2H equipment for monthly fees. EPCO also generates revenue through construction/installation services via subsidiaries TEPCOホームテック and ENE's.
3. Maintenance Services (メンテナンスサービス): Provides 24/7 after-maintenance call center operations, repair coordination, inside sales for renovation proposals, and extended warranty services to housing companies and energy enterprises. Revenue derived from BPO service fees and per-transaction coordination charges.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

EPCO provides integrated housing lifecycle services across three business units. Renewable Energy Services offers the 'Ene Kari' zero-initial-cost subscription model covering solar PV, storage batteries, EcoCute, IH cooking heaters, and V2H equipment to homeowners. Design Services delivers comprehensive facility engineering design (plumbing, electrical, energy-saving, rain gutters, housing equipment, plus BIM implementation support) handling approximately 14% of Japan's annual low-rise residential housing starts. Maintenance Services runs 24/7 after-maintenance call center operations, repair coordination, inside sales for renovation proposals, and extended warranty programs covering approximately 1.8 million households across Japan with 700,000+ annual inquiries.

Product overview

EPCO operates three core business segments: Renewable Energy Services ( 再エネサービス), Design Services (設計サービス), and Maintenance Services (メンテナンスサービス). The company provides a comprehensive housing infrastructure ecosystem including the 'Ene Kari' subscription service for zero-down-payment renewable energy equipment, total equipment design services covering plumbing, electrical, and energy systems (handling ~14% of Japan's low-rise housing), and 24/7 maintenance/call center operations managing 1.68 million households. Key group companies include TEPCOホームテック (joint venture for Ene Kari), ENE's (electrical installation subsidiary), and MEDX (joint venture for BIM/CRM DX services).

Differentiator

Problem solved

Functional benefit

Brands

• エネカリ (Ene Kari): A subscription model service offering residential renewable energy equipment (solar PV, storage batteries, Eco Cute, IH cooking heater, V2H) with zero initial cost and monthly fixed fees, provided through TEPCOホームテック.

Products and services

• Renewable Energy Service (再エネサービス) Zero-initial-cost renewable energy subscription service for residential customers covering solar photovoltaic systems, storage batteries, EcoCute water heaters, IH cooking heaters, and V2H (Vehicle-to-Home) equipment. Delivered through monthly subscription pricing with all-inclusive installation and maintenance, plus equipment ownership transfer upon contract completion. Provided through the TEPCO Home Tech JV salesforce and through housing company partnership channel for new-build integration.
• Design Service (設計サービス) Total facility design services for residential housing covering plumbing, electrical equipment, energy-saving systems, rain gutters, and housing equipment. Includes standardization support, design and application filing agency services, and BIM implementation support. Handles approximately 14% of Japan's annual low-rise residential housing equipment design with annual capacity of approximately 100,000 units and cumulative design for over 1 million units. Delivered through a Japan-China collaborative operations network with 400+ design staff.
• Maintenance Service (メンテナンスサービス) 24/7/365 after-maintenance call center operations, repair coordination, inside sales for renovation and equipment replacement proposals, and back-office support for housing companies. Delivered through EPCO's own three-location call center network (Tokyo, Okinawa Operations Center, Kanazawa Operations Center) covering approximately 1.8 million managed households and handling 700,000+ annual homeowner inquiries. Includes the Contractor Support Pack (工務店支援パック) bundled offering for housing contractors combining maintenance and inside sales services.
• BIM Implementation Support (BIM導入支援) Building Information Modeling consulting and implementation support service for housing industry clients. Provides 3D design conversion support, automated drawing generation, automatic drawing inspection tools, and RPA-enabled process innovation to help housing companies adopt BIM workflows. Backed by a large BIM Center in Shenzhen supporting Japan-China delivery.

Quantifiable outcome

• Handles approximately 14% of Japan's annual low-rise residential housing equipment design starts
• +5 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature6 records

Partnerships

Ten partnerships are on record, tiered minor, strategic and core.

• 班皓艾博科新能源設計（深圳）有限公司minorStrategic or Co-development Partner · 1 January 2023JV company in Shenzhen established in 2023 when China LESSO Group invested in 艾博科建筑設備設計（深圳）有限公司, which was subsequently renamed and became an equity method affiliate.
• MEDX株式会社strategicStrategic or Co-development Partner · 1 January 2022Joint venture established in 2022 with Mitsui & Co. (三井物産株式会社) to provide housing industry DX services leveraging BIM and CRM technologies. Combines EPCO's residential domain expertise with Mitsui's commercial network to accelerate digital transformation in Japan's housing industry.
• 株式会社ENE'scoreTechnology or Integration · 1 January 2020100% subsidiary acquired in 2020 (previously System House Engineering). Provides electrical construction services for solar PV systems, storage batteries, and all-electric equipment installation. Operates as the group's strategic construction execution partner for TEPCOホームテック and major housing manufacturers, primarily in the Kanto region.
• 弁護士ドットコム株式会社minorGTM or Marketing Partner · 1 January 2019Co-hosted an electronic contract seminar for the construction and building industry in November 2019, promoting EPCO's field information sharing system and electronic contract adoption.
• TEPCOホームテック株式会社coreStrategic or Co-development Partner · 1 January 2017Joint venture with Tokyo Electric Power Energy Partner (東京電力エナジーパートナー株式会社) established in 2017. Provides the 'Ene Kari' zero-initial-cost renewable energy subscription service covering solar PV, storage batteries, EcoCute, IH cookers, and V2H equipment. Serves as EPCO group's primary vehicle for residential renewable energy deployment and carbon neutrality goals.
• 艾博科建筑設備設計（吉林）有限公司coreTechnology or Integration · 1 January 2016Wholly-owned subsidiary in Jilin Province, China, serving as a key CAD design center. Established to ensure stable design operations and diversified capability across Japan-China operations.
• Panasonic・エプコエナジーサービス株式会社minorStrategic or Co-development Partner · 1 January 2014Joint venture with Panasonic for household solar aggregation services, established in 2014. Absorbed by Panasonic Corporation in 2016.
• ONEエネルギー株式会社minorStrategic or Co-development Partner · 1 January 2013Joint venture with ORIX Corporation (オリックス株式会社) and NEC Corporation (日本電気株式会社) established in 2013 to provide household battery rental services. SPCO transferred its shares in 2016.
• 広東聯塑艾博科住宅設備設計服務有限公司strategicStrategic or Co-development Partner · 1 January 2011Joint venture with China LESSO Group (中国最大の管材メーカー) and EPCO(HK) for housing equipment design services in China and broader Asian markets. Located in Foshan, Guangdong Province, leveraging LESSO's local manufacturing and distribution network.
• EPCO(HK)LIMITEDstrategicStrategic or Co-development Partner · 1 January 2011Hong Kong-based subsidiary serving as EPCO group's Asian headquarters. Manages investment in Chinese joint ventures and oversees management of China subsidiaries.

Scale indicators12 records

Recent moves15 records

Expansion highlights6 records

Broad incumbents

• LIXIL Group: Global housing equipment and building products manufacturer. Major customer ecosystem for EPCO's housing equipment design services and a comparable participant in Japan's residential construction value chain, particularly relevant for understanding housing equipment design outsourcing demand.
• Daiwa House Industry: Japan's largest home builder and a major customer of EPCO for equipment design services. Operates across the full housing value chain, comparable to EPCO as it represents both the addressable customer base and an indicator of housing industry consolidation trends that could affect EPCO's customer concentration risk.
• Sekisui House: One of Japan's largest home builders with significant residential construction volume. Comparable customer profile to EPCO's housing manufacturer/builder client base and an indicator of scale and integration trends in the housing industry that shape EPCO's service demand.
• Tokyo Gas: Japanese utility providing residential energy services and equipment. Comparable to EPCO's Ene Kari renewable energy subscription model for residential customers, representing both a potential competitor and a strategic benchmark for scaling residential energy services in Japan.

Direct peers

• Bellsystem24 Holdings: Largest Japanese call center BPO provider, directly comparable to EPCO's 24/7/365 maintenance call center operations handling 700,000+ annual homeowner inquiries across three distributed locations. Both serve enterprise clients with customer-facing housing and consumer services operations.
• transcosmos: Japanese BPO and customer service leader serving multiple industries including housing, real estate, and insurance. Comparable to EPCO's BPO call center operations for housing companies, real estate firms, and insurance companies (保険会社様).
• Kandenko: Major Japanese electrical construction and infrastructure services company. Comparable to EPCO for its electrical equipment design scope and construction execution capabilities, particularly relevant given EPCO's ENE's subsidiary and electrical design services for housing companies.

Emerging players

• China LESSO Group: Asia's largest pipe manufacturer and EPCO's joint venture partner since 2011. Comparable to EPCO in housing infrastructure scope, with significant presence in China and broader Asia — providing EPCO's cross-border expansion channel and a benchmark for the Asian housing infrastructure market opportunity.
• Tokyo Energy & Systems: Japanese utility-affiliated energy services company providing residential and commercial energy solutions. Comparable to EPCO's renewable energy services and design offerings for the housing value chain, with similar exposure to Japan's energy transition and residential decarbonization trends.
• Rakuten Group: Operates Rakuten Energy providing residential solar and electricity subscription services. Directly comparable to EPCO's Ene Kari subscription model for residential renewable energy equipment, representing the consumer-facing energy subscription competition EPCO faces via TEPCO Home Tech.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/epco2311

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries8 records

Funding overview

Funding rounds

Investors

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

M&A

Investments1 record

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

Frequently asked questions about EPCO