Kaho Musen Holdings

What Kaho Musen Holdings does

Kaho Musen Holdings Co., Ltd. (嘉穂無線ホールディングス株式会社) is a private Japanese holding company headquartered in Fukuoka, founded in 1949, that operates five core subsidiaries spanning home-center retail, educational electronics kits, data-analytics services, electronic-parts sales, and custom-keyboard retail. The group's central business is GooDay (グッデイ), a regional home-center chain with 67 physical stores across northern Kyushu (Fukuoka, Oita, Saga, Kumamoto) and Yamaguchi, plus Yahoo and Rakuten e-commerce storefronts, serving local households with hardware, gardening, pet, and daily-necessities purchases and operating an extensive workshop and maker-space programming (20,000+ participants). Adjacent subsidiaries include EK JAPAN (Elekit brand), which designs, manufactures, and retails electronic work kits ranging from robotics and solar decorative kits to vacuum-tube audio amplifiers; KAHO Enterprise, a B2B digital-transformation consultancy that builds BigQuery data warehouses and Tableau dashboards for enterprise clients such as Kokubu Group, ProLogis, H2O Retailing, Yamaguchi University, and Zeolite; KAHO Parts Center, which sells electronic components and custom-keyboard parts; and Yushakobo, a custom-keyboard kit retailer and workshop operator acquired in March 2025. The group also markets a third-party AI gardening-support chatbot (GooDay園芸サポートAI powered by GreenSnap's growplantsAI) on LINE, a point-accumulation app called Tammari, and a DIY Designer custom-furniture service integrated across 64 GooDay stores. Revenue is generated through standard retail margins on consumer goods, professional-services engagements for DX/data-analytics implementations, hardware sales of branded kits and custom-keyboard components, and pricing tiers ranging from open-price entry kits to premium 96,800-yen vacuum-tube amplifier builds. The customer base mixes broad-based regional retail consumers with a defined set of enterprise B2B accounts and enthusiast hobbyist communities; the firm operates primarily within Japan with no disclosed international footprint.

Name

Kaho Musen Holdings

Legal name

嘉穂無限ホールディングス株式会社 (Kaho Musen Holdings Co., Ltd.)

Website

https://kahomusen-holdings.co.jp

Company type

Private

Founded year

1949

Operating status

Operating

Headcount range

1–10 employees

Short description

Kaho Musen Holdings is a private Japanese holding company headquartered in Fukuoka that operates five subsidiaries: GooDay (a 67-store regional home-center chain in northern Kyushu and Yamaguchi), EK JAPAN electronic work kits, KAHO Enterprise DX/data-analytics consulting, KAHO Parts Center electronics retail, and Yushakobo custom-keyboard retail.

Ownership category

akta.pro rank

Headquarters

HQ city

Fukuoka

HQ country

Japan

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Home Center Retail (GooDay): Retail sales of hardware, home improvement, gardening, pet supplies, and daily necessities through 67 physical store locations across northern Kyushu and Yamaguchi. Also operates e-commerce through Yahoo and Rakuten platforms.
2. Data Analytics/DX Services (KAHO Enterprise): Provides BigQuery and Tableau-based data analytics solutions, data visualization dashboards, and DX consulting services to enterprise clients including Kokubu Group, ProLogis, ShowIn, Yamaguchi University, and others.
3. Electronic Hobby Kits (EK JAPAN / Elekit): Designs, manufactures, and sells electronic working kits including robotics, science experiment kits, and audio equipment through retail and e-commerce channels.
4. Custom Keyboard Kits (Yushakobo): Sells custom keyboard kits, switches, keycaps, and related parts through physical retail and e-commerce. Also operates workshop studios for keyboard enthusiasts.
5. Electronic Parts Sales (Kaho Parts Center): Sells electronic components and hobby parts, including custom keyboard components and DIY supplies.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

Kaho Musen Holdings is a Japanese holding company that owns and operates five subsidiaries. GooDay is a 67-store home center chain across northern Kyushu and Yamaguchi selling DIY goods, gardening supplies, pet products, and household furnishings. EK JAPAN (Elekit brand) manufactures electronic work kits, KAHO ENTERPRISE delivers BigQuery/Tableau-based DX and data analytics consulting, KAHO Parts Center distributes electronic components, and Yushakobo designs custom mechanical keyboard kits.

Product overview

Kaho Musen Holdings operates a diversified portfolio of 5 core businesses: (1) Home center chain GooDay with 67 stores offering daily necessities, gardening, and DIY products, complemented by 3D printer sales, Digital Craft Studio maker spaces, and the third-party DIY Designer furniture service; (2) EK JAPAN electronic work kit brand producing educational robotics, vacuum tube amplifiers, and science experiment sets; (3) KAHO ENTERPRISE data analytics and DX consulting services using BigQuery and Tableau; (4) KAHO Parts Center electronic components retail including custom keyboard products; (5) Yushakobo custom keyboard specialty retailer acquired in 2025. The group also provides AI-powered services including GooDay園芸サポートAI gardening assistant and the Tamary loyalty app.

Differentiator

Problem solved

Functional benefit

Brands

• GooDay: ホームセンターグッデイ - 北 部九州・山口等に67店舗を展開するホームセンター
• Elekit
• デジタルクラフトスタジオ (Digital Craft Studio)
• くらし研究所
• DIY Designer
• タマリー (Tammari)
• PASSTO
• GooDay園芸サポートAI
• if green..．

Products and services

• GooDay Home Center Retail Chain A 67-store home center chain across northern Kyushu (Fukuoka, Saga, Nagasaki, Oita, Kumamoto) and Yamaguchi, selling DIY goods, gardening supplies, pet products, household furnishings, daily necessities, and home improvement merchandise to household consumers.
• Elekit Electronics Work Kits Educational and hobbyist electronic work kits manufactured in-house by EK JAPAN and sold to STEM educators, students, and electronics hobbyists. Each kit supports hands-on assembly and experimentation.
• KAHO ENTERPRISE DX and Data Analytics Services Project-based consulting services in BigQuery data warehousing, Tableau-driven analytics, digital transformation enablement, and training for Japanese enterprise and mid-market clients.
• KAHO Parts Center Electronic Components Wholesale and retail distribution of electronic components serving makers, hobbyists, repair shops, and small-scale OEM customers.
• Yushakobo Custom Mechanical Keyboard Kits Custom-designed mechanical keyboard kits (case, PCB, plate) sold direct to global mechanical keyboard hobbyists, supporting small-batch enthusiast builds with curated hardware specifications.
• Tammari Loyalty Mobile App Mobile loyalty platform issued by the group, providing points, coupons, and engagement features to repeat customers of GooDay stores and supporting subsidiaries.

Quantifiable outcome

• Over 20,000 workshop participants with high satisfaction and NPS scores
• +3 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability3 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• Kokubu Group (国分グループ本社株式会社)coreStrategic or Co-development Partner · 28 May 2026KAHO Enterprise provides DX support for Kokubu Group's data utilization enhancement, implementing BigQuery data warehouse and Tableau visualization platforms to automate sales reporting and enable data-driven decision making for the 300+ year old food/liquor distribution company.
• ProLogis (プロロジス)minorStrategic or Co-development PartnerKAHO Enterprise implemented DX support for ProLogis, a global logistics real estate company, helping optimize their warehouse and logistics operations through data analytics solutions.
• Yamaguchi University (山口大学)minorStrategic or Co-development PartnerKAHO Enterprise conducted DX support for Yamaguchi University, implementing data utilization strategies for educational institution operations.
• Zeolite Co., Ltd. (ゼオライト株式会社)coreStrategic or Co-development PartnerKAHO Enterprise built BigQuery data warehouse and Tableau dashboards for Zeolite's water treatment plant monitoring, automating data collection and enabling comprehensive analysis across their plant operations.
• H2O Retailing (エイチ・ツー・オー リテイリング)coreStrategic or Co-development PartnerKAHO Enterprise provides Tableau-based commercial district analysis and retail store dashboards for H2O Retailing, operator of department stores (Hankyu, Hanshin) and shopping centers, supporting their 2030 digital transformation vision.
• Iizuka High School (学校法人嶋田学園飯塚高等学校)coreStrategic or Co-development PartnerEducational partnership for DIY-based learning and regional contribution, including dormitory renovation projects, disaster prevention education, and hands-on practical learning experiences for students.
• Fukuoka City (福岡市)coreGTM or Marketing PartnerPartnership with Fukuoka City for '一人一花運動' (One Person, One Flower) campaign, donating 1.6 million yen worth of flower seedlings for public space beautification.
• Fukuoka SoftBank Hawks (福岡SoftBankホークス)coreGTM or Marketing PartnerOngoing marketing partnership including 'GooDay Day' sponsorship events, opening pitch ceremonies, promotional sales, and fan engagement campaigns tied to team achievements.
• Fukuoka City Government / Itoshima City / Hisayama Town / Iizuka CitycoreStrategic or Co-development PartnerVarious municipal partnerships for regional community development, green infrastructure, disaster prevention, and community engagement initiatives.
• Fukuoka Prefecture Housing Supply Corporation (福岡県住宅供給公社)coreStrategic or Co-development PartnerDIY renovation partnership for public housing regeneration, transforming vacant units into model rooms and addressing regional housing challenges through collaborative renovation projects.
• Google (Google Cloud / BigQuery)coreTechnology or IntegrationKAHO Enterprise implements BigQuery data warehouse solutions as core technology platform for client DX projects.
• Tableau (Salesforce)coreTechnology or IntegrationKAHO Enterprise implements Tableau visualization platforms as core technology for data analytics and dashboard solutions for enterprise clients.

Scale indicators6 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Gakken Holdings: Japanese educational publisher and toy/kit manufacturer. Directly comparable to EK JAPAN/Elekit as a maker of educational science kits, STEM toys, and learning materials for children and hobbyists.
• Hands Inc. Japanese lifestyle/home center retailer operated by AEON Group. Comparable as a home center with curated product mix targeting hobby, DIY, and home improvement customers.
• Cainz Corporation: Japanese home center chain with nationwide presence. Comparable as a competing home center retailer with similar product categories including home improvement, gardening, and DIY.
• DCM Holdings: Japanese home center holding company operating DCM, Homac, and other home center chains nationwide. Directly comparable as a regional home center holding company structure with multiple retail brands under one corporate parent.
• Komeri Co., Ltd. Major Japanese home center chain operating over 1,200 stores. Directly comparable as a competing home center retailer serving Japanese consumers with DIY, gardening, and daily necessities.
• Joyful Honda: Japanese home center chain focused on hardware, home improvement, and DIY. Comparable as a regional-format home center with similar product mix including gardening and DIY products.
• Tamiya Incorporated: Japanese model kit manufacturer producing plastic models, radio-controlled cars, and educational construction kits. Comparable to EK JAPAN as a Japan-based manufacturer of educational/hobby construction kits with similar target market.
• Keychron: Custom mechanical keyboard manufacturer with strong global community following. Directly comparable to Yushakobo as a custom keyboard retailer/manufacturer serving enthusiast buyers.

Broad incumbents

• Bandai Namco Holdings: Major Japanese toy and entertainment company with significant presence in educational toys and character merchandise. Comparable to EK JAPAN's educational kit business at much larger scale.

Others

• Future Corporation: Japanese IT consulting firm specializing in DX, data analytics, and enterprise system integration. Comparable to KAHO Enterprise as a Japanese DX consulting firm serving enterprise clients with data-driven transformation services.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/kaho-musen-holdings-co.-ltd.

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries5 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 Kaho Musen Holdings