Eidai
Japanese manufacturer of residential interior building materials (flooring, doors, kitchens, bathrooms, storage, stairs, particleboard) serving homebuilders, architecture firms, and consumers through B2B channels and 17 nationwide showrooms.
- Company typePublic
- Founded1946
- HeadquartersSumiyoshi, Japan
- Headcount1,001–5,000
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What Eidai does
EIDAI (永大産業株式会社, ticker 7822) is a Japanese manufacturer and seller of residential interior building materials, founded in 1946 and headquartered in Osaka. The company produces a complete interior package across nine product categories: flooring and wall materials, interior stairs, interior doors and moldings, closets and storage, system kitchens, washstands and bathrooms, a total-coordination brand portfolio, non-residential products, and particleboard. EIDAI's technology base includes proprietary processes such as the world's first mass-produced ultra-low formaldehyde particle board (≤0.02mg/L emissions), an industry-first lightweight particle board at 0.5g/cm³ density, and a shape stabilization treatment that allows solid wood flooring over floor heating systems.
The business model is primarily a B2B hardware sales operation serving Japanese residential homebuilders, construction companies, and architecture/design firms, supplemented by a B2C channel of 17 company-operated showrooms nationwide and an e-commerce shop on Rakuten. Project-based, quote-driven pricing is the norm, with the EDnet+ digital platform serving as the B2B quoting, design, and ordering system for trade customers. The company also operates a vertically integrated particleboard supply via its Tsuruga plant (~6,500 tons/month) and EN Boards subsidiary, with offshore flooring production at EIDAI Vietnam (EVC).
EIDAI is publicly listed on the Tokyo Stock Exchange (First Section), with wholly-owned subsidiaries in Vietnam (EVC), Brazil (EIDAI do Brasil, sustainable forestry), and Indonesia, plus a consolidated subsidiary Kanto Jusetsu Sangyo in the Kanto region. Disclosed revenue declined from ¥525.6B in FY2023 to ¥464.8B in FY2026 following a May 2023 fire at the Tsuruga particleboard plant, though EBITDA recovered from ¥10.4B to ¥26.4B over the same period under the "EIDAI Advance Plan 2026" medium-term management plan launched in May 2024.
Eidai firmographics
Firmographics- Name
- Eidai
- Legal name
- 永大産業株式会社
- Website
- https://eidai.com
- Company type
- Public
- Founded year
- 1946
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Japanese manufacturer of residential interior building materials (flooring, doors, kitchens, bathrooms, storage, stairs, particleboard) serving homebuilders, architecture firms, and consumers through B2B channels and 17 nationwide showrooms.
- Ownership category
- akta.pro rank
Eidai industry classification
Industry- Product category
- Residential Interior Building Materials
- NAICS
- Custom Architectural Woodwork and Millwork Manufacturing (337212), Wood Window and Door Manufacturing (321911)
- SIC
- Lumber & Wood Products (No Furniture) (2400)
- akta.pro primary industry
- Interior Doors (IMADAIAB)
- akta.pro secondary industries
- Stair Parts, Railings & Architectural Woodwork (HSAPAIAJ), Custom Built-Ins (Shelving, Entertainment Centers, Mudrooms) (HSAPAIAH), Engineered Wood Siding, Trim & Mouldings (IMAMACAI), Engineered Wood Flooring Substrates & Panels (IMAMACAL)
Keywords
Where Eidai is headquartered
LocationHeadquarters
- HQ city
- Sumiyoshi
- HQ country
- Japan
- HQ region
- Asia
Offices14 records
Markets served
Eidai business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Building materials sales: EIDAI generates revenue primarily through manufacturing and selling residential interior building materials including flooring, interior doors, system kitchens, bathroom products, storage/closets, stairs, and particle board. Products are sold through B2B channels (homebuilders, construction companies, architecture firms) and B2C channels (showrooms, e-commerce).
- Custom/bespoke products: EIDAI offers made-to-order products based on customer specifications for dimensions, colors, and finishes, allowing premium pricing for customization.
- Non-residential products: Expansion into commercial and non-residential building materials sector.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Transaction based/ take rate | Multi-year contract | Project/custom pricing for homebuilders and construction companies |
Go-to-market motion1 record
Distribution channels5 records
Marketing channels9 records
Eidai product offering
Product offeringCore offering
EIDAI manufactures and sells residential interior building materials in Japan, including wood flooring, interior doors, system kitchens, bathrooms, closets/storage, interior stairs, and particle board. Products are supplied through B2B channels (homebuilders, construction firms, architects/designers) and B2C channels (nationwide showrooms and an online web shop), with proprietary manufacturing technologies such as ultra-low formaldehyde particle board, lightweight particle board, and shape stabilization treatment for solid wood flooring.
Product overview
EIDAI (永大産業株式会社) is a Japanese manufacturer of residential interior building materials operating as a platform-plus-products architecture. The core product portfolio spans nine categories: flooring/wall materials, interior stairs, interior doors/moldings, closets/storage, system kitchens, washstands/bathrooms, a total coordination brand, non-residential products, and particleboard. Major product sub-brands include Gran Majest (グランマジェスト, premium tier), Decorche (デコルシェ, trend-focused interiors), Skism (スキスム, design-forward), and Material Selection (マテリアルセレクション, 2025 launch). Key platforms include EDnet+ (a B2B web system for quotes, design, proposals, and orders) and color/3D simulation tools. Products are sold through EIDAI Web Shop (Rakuten), showrooms nationwide, and architecture/builder channels.
Differentiator
Problem solved
Functional benefit
Brands
- Skism (スキスム): Total coordination interior brand targeting modern lifestyle consumers with contemporary design interior doors, flooring, and storage products.
- GRANMAJEST (グランマジェスト)
- Gate Style Kitchen
- Decorche (デコルシェ)
- Lafina Neo (ラフィーナネオ)
- Material Selection (マテリアルセレクション)
- Coverlie (カバーリエ)
- Seamless Package (シームレスパッケージ)
- Safe Care Plus (セーフケアプラス)
- Aquaouge (アクアージュ)
- Meiju (銘樹)
- Comcarbo (コンカーボ)
Products and services
- Flooring and Wall Materials Wood flooring products (solid, engineered, sheet flooring), wall materials, and finishing products for residential interiors, including noise-reduction and floor-heating-compatible variants. Targeted at homebuilders, renovation contractors, and consumers.
- Interior Stairs Interior stair systems including Sasara-column (正寸プレカット) pre-cut stair sets and Unicolor Selection stair products for residential construction.
- Interior Doors and Moldings
Companies that use Eidai
Customer profileSegments5 records
Ideal customer profiles5 records
Eidai technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Eidai partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- EN Board Co., Ltd.coreSubsidiary specializing in non-wood decorative sheets. Received JIS certification in November 2022. Engaged in green loan financing with reporting on environmental improvements. Also involved in fire incident at subsidiary's Tsuruga plant.
- Saitama (Logistics Center)minorEstablished logistics center in Saitama prefecture to improve distribution efficiency in the Kanto region.
- Kanto Jusetsu Sangyo Co., Ltd. (関東住設産業)minorEstablished new company Kanto Jusetsu Sangyo Co., Ltd. in July 2020 to strengthen business operations in the Kanto region.
- Vietnam Operations (EVC)coreSubsidiary EIDAI Vietnam Co., Ltd. (EVC) established in 2017, engaged in flooring production. New factory building completed in August 2022.
- Mitsubishi Chemical Infrastructure TeccoreJoint development of next-generation heat-storing flooring system combining EIDAI's flooring technology with Mitsubishi Chemical's heat dissipation panels. Won the 63rd Wood Processing Technology Award.
- Brazil Operations (EDB)coreSubsidiary EIDAI do Brasil (EDB) engaged in sustainable forestry operations in Brazil, including afforestation of degraded land. Featured on NHK World Trends program. Part of EIDAI's environmental sustainability strategy.
- Unilin (Belgium)coreLicensed patent implementation agreement for floor joining technology (Quick-Step/Unit Click System), enabling production of tongue-and-groove flooring without adhesive or nails. Original licensing agreement signed in 2001.
- Homeclip (Internet renovation intermediary)minorJoint venture with Tokyo Gas and INAX established in 2001 for internet-based housing renovation intermediary services. Platform allows users to search renovation companies, request quotes, and browse renovation examples.
Scale indicators9 records
Recent moves8 records
Expansion highlights6 records
Eidai competitors and assessment
Company assessmentBroad incumbents
- Daiwa House Industry: Daiwa House is one of Japan's largest homebuilders and a major customer/ecosystem participant for EIDAI products. While primarily a builder, it also procures interior materials at scale and exerts significant influence on supplier specifications, making it a strategic incumbent rather than a same-product peer.
- Sekisui House: Sekisui House is a leading Japanese homebuilder that specifies large volumes of interior building materials. As a major customer for EIDAI products and a participant in the same residential construction value chain, it is a broad incumbent that shapes product specification and demand for interior suppliers like EIDAI.
Direct peers
- Takara Standard: Takara Standard manufactures system kitchens, bathroom units, and interior building materials targeted at Japanese residential housing. It overlaps with EIDAI across kitchen, bath, and storage categories, and competes for the same architect/designer-specified projects.
- LIXIL: LIXIL is a major Japanese home building products maker with overlapping kitchen, bathroom, interior door, and storage lines (e.g., LIXIL kitchens, Sunwave, Inax bathrooms). LIXIL competes directly with EIDAI in residential kitchens, washstands, and interior doors for both new-build and renovation projects.
- TOTO: TOTO is the dominant Japanese sanitary-ware and bathroom manufacturer. It directly competes with EIDAI's Aquaouge washstand line and bathroom products in both new residential construction and renovation specifications for the same Japanese builder and consumer customer base.
- Rinnai: Rinnai is a major Japanese kitchen appliance and equipment manufacturer. While primarily known for cooking and water-heating appliances, it competes with EIDAI in residential kitchen system packages and integrated interior kitchen solutions delivered to homebuilders and renovators.
- Cleanup: Cleanup is a Japanese system-kitchen manufacturer with strong brand recognition among homebuilders and renovation contractors. It is a head-to-head competitor in residential kitchens against EIDAI's Gate Style Kitchen, Lafina Neo, and Gran Majest kitchen lines, particularly in renovation and mid-premium segments.
- Wood One: Wood One is a Japanese manufacturer specializing in solid and engineered wood flooring, wood decks, and interior wood products. It competes with EIDAI in residential wood flooring (Meiju and similar tier), architectural millwork, and wood-based interior materials for the same Japanese homebuilder channel.
- Panasonic Eco Solutions (Panasonic Housing Solutions): Panasonic Housing Solutions offers kitchen, bathroom, interior, and storage products targeting Japanese residential construction. It competes directly with EIDAI in system kitchens, washstands, and total-coordination interior packages, leveraging the broader Panasonic brand and dealer network.
- Daiken (大建工業): Daiken is one of EIDAI's closest Japanese competitors in interior wood-based building materials, particularly engineered flooring, interior doors, and wall materials. Both firms target Japanese residential builders with overlapping product categories (flooring, doors, storage) and direct B2B specifications, making them the most head-to-head peer in the segment.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Eidai social profiles
Digital presenceEidai compliance and trust
Trust signalCompliance3 records
Eidai financial estimates
Financial estimateRevenue estimate
Valuation estimate
Eidai leadership team
Management profileNumber of profiles
Profiles1 record
Eidai subsidiaries and ownership
Company hierarchySubsidiaries4 records
Eidai funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Eidai M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Eidai
What does Eidai do?
EIDAI manufactures and sells residential interior building materials in Japan, including wood flooring, interior doors, system kitchens, bathrooms, closets/storage, interior stairs, and particle board. Products are supplied through B2B channels (homebuilders, construction firms, architects/designers) and B2C channels (nationwide showrooms and an online web shop), with proprietary manufacturing technologies such as ultra-low formaldehyde particle board, lightweight particle board, and shape stabilization treatment for solid wood flooring.
Is Eidai a public or private company?
Eidai is a public company. It is classified as public and is currently operating.
When was Eidai founded?
Eidai was founded in 1946. It employs 1,001 to 5,000 people.
Where is Eidai based?
Eidai is headquartered in Sumiyoshi, Japan, in the Asia region.
How does Eidai make money?
Three revenue lines are on record. Building materials sales are the primary driver. The others are custom/bespoke products and non-residential products.
Who are Eidai's main competitors?
Broad incumbents on record are Daiwa House Industry and Sekisui House. Direct peers are Takara Standard, LIXIL, TOTO, Rinnai, Cleanup, Wood One, Panasonic Eco Solutions (Panasonic Housing Solutions) and Daiken (大建工業).
Does Eidai have an API?
No public API is recorded for Eidai.
What industry is Eidai in?
Eidai's product category is Residential Interior Building Materials. Its primary akta.pro industry code is IMADAIAB, Interior Doors, with a secondary code of HSAPAIAJ, Stair Parts, Railings & Architectural Woodwork. Its NAICS code is 337212 and its SIC code is 2400.