What Seiren does

Seiren Co., Ltd. (セーレン株式会社) is a 135-year-old Japanese diversified manufacturing company publicly listed on the Tokyo Stock Exchange (ticker 3569.T) and headquartered in Fukui, Japan, with sales offices in Tokyo and Nagoya. The company employs 5,001-10,000 people and operates across 12 business divisions: Electronics, Civil Engineering/Architecture/Industrial Materials, Environment, Medical/Healthcare, Beauty/Health, Livingware/Interior, Automotive Materials, Viscotecs (digital production), Apparel Fibers, Sales Promotion, Fiber Processing, and advanced Business Topics including satellite development. Its international footprint includes wholly-owned manufacturing and sales subsidiaries in the United States, Mexico (with a new US$46M plant opened in Guanajuato in May 2026), Brazil, China, Thailand, Indonesia, and India, alongside a corporate group of 12+ Japanese subsidiaries covering trading, electronics, advanced materials, DTY yarn operations, and system technology services. Customers span automotive OEMs and Tier-1 suppliers, electronics manufacturers, construction firms, healthcare institutions, and fashion brands, with Tatsuo Kawada serving as Representative Director, Chairman and CEO.

Seiren's core technology is anchored by Viscotecs, a proprietary digital production system that integrates digital design, high-precision inkjet printing, pattern cutting, and IT-controlled manufacturing into a single workflow, enabling on-demand made-to-order production with 470,000+ possible combinations and 3-week delivery. The company has developed a portfolio of proprietary branded products including QUOLE synthetic leather (4x abrasion resistance and half the weight of real leather, with 10+ year lifespan), Leganu artificial leather for automotive interiors, METAFLEX flexible conductive materials, BYERUS antiviral technology (99%+ virus reduction), SERECARBO carbon fiber prepreg for aerospace, SUNVEIL UV-blocking textiles, Shadan heat-blocking polyester, PRIMORDIAL seamless knit technology, and the NEW CureLa medical information system.

The business model combines B2B enterprise sales (project-based, quote-priced, multi-year supply contracts to automotive OEMs, electronics manufacturers, construction firms, and healthcare institutions) with a B2C e-commerce channel operated through three branded storefronts (Mashmania for personalized fashion, Comoace for cosmetics on a subscription model, Deoest for deodorant apparel and medical accessories). Revenue streams include textile and materials sales, Viscotecs digital production services, cosmetics OEM manufacturing, industrial inkjet solutions, and satellite development. Distribution is handled via dedicated direct sales teams per business division, overseas subsidiaries, branded e-commerce platforms, and physical retail locations including the Viscotecs Make Your Brand store at Shinjuku Takashimaya.

Name

Seiren

Legal name

セーレン株式会社

Website

https://seiren.com

Company type

Public

Founded year

1889

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Seiren is a 135-year-old Japanese public manufacturer (TSE: 3569) operating 12 business divisions across automotive materials, electronics, medical, construction, and fashion, with proprietary Viscotecs digital production technology, QUOLE synthetic leather, and a global manufacturing footprint serving enterprise OEMs and D2C consumers.

Ownership category

akta.pro rank

Product category

Advanced Textile and Engineered Materials

NAICS

Cut and Sew Apparel Manufacturing (3152), Apparel Knitting Mills (3151), Broadwoven Fabric Mills (313210), Narrow Fabric Mills and Schiffli Machine Embroidery (313220)

SIC

Apparel & Other Finishd Prods Of Fabrics & Similar Matl (2300), Miscellaneous Fabricated Textile Products (2390), Broadwoven Fabric Mills, Man Made Fiber & Silk (2221)

akta.pro primary industry

Activewear & Athleisure Cut & Sew (IMAOAEAA)

akta.pro secondary industries

Sleepwear & Loungewear Cut & Sew (IMAOAEAI), Sports Team & Promotional Apparel Cut & Sew (Screenprint/Embroidery-Ready) (IMAOAEAK), Narrow Fabrics & Webbings (Tapes/Ribbons/Straps) (IMAOABAD), Elastic, Tapes & Webbing Manufacturing (Elastic Bands/Binding/Strapping/Webbing) (IMAOALAD)

Keywords

• Advanced textile materials
• Synthetic leather manufacturing
• Automotive interior materials
• Digital textile printing
• Antiviral medical textiles

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices13 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. B2B Textile and Materials Sales: Sale of textile materials, automotive interiors (synthetic leather, artificial leather, fabric), construction materials, electronics materials, medical/healthcare materials to enterprise customers. Revenue from long-term supply contracts with automotive OEMs, construction firms, and healthcare institutions.
2. Digital Production System (Viscotecs) Services: On-demand digital printing and manufacturing services through Viscotecs system, including inkjet printing, pattern making, cutting, and assembly for fashion and industrial applications. Revenue from both B2B brand partnerships (Viscotecs make your brand) and B2C personalized orders.
3. Direct-to-Consumer E-commerce: Online sales through branded stores (Mashmania, Comoace, Deoest) selling cosmetics, health/beauty products, deodorant apparel, and medical supplies directly to consumers. Includes subscription-style regular delivery options for cosmetics.
4. Cosmetics OEM: Original equipment manufacturing of cosmetics under the Comoace brand and potentially for other brands, supplying skincare, makeup, and beauty products.
5. Satellite Development and Manufacturing: Development and manufacturing of micro-satellites as part of Seiren's entry into the space business, applying expertise in fiber machinery and software.
6. Industrial Inkjet Solutions: Sale of industrial inkjet printing systems and solutions including ViscoFortis high-weather-resistance fluororesin inkjet system, inkjet media (Saidex), and PR sheet products.

Pricing tiers

Go-to-market motion4 records

Distribution channels5 records

Marketing channels8 records

Core offering

Seiren is a diversified Japanese advanced materials and technology company that manufactures and sells proprietary textiles and engineered materials across 12 business divisions, including synthetic leather (QUOLE), flexible conductive materials (METAFLEX), antiviral textiles (BYERUS), automotive interior fabrics and leathers, medical information systems, construction waterproofing, cosmetics, deodorant apparel, and carbon fiber prepreg. The company's central platform is the proprietary Viscotecs digital production system, which integrates design, inkjet printing, pattern cutting, and IT-controlled manufacturing to deliver zero-inventory made-to-order textile production for both B2B brand partnerships and B2C personalized ordering.

Product overview

Seiren is a diversified Japanese manufacturing company operating across multiple business segments including electronics, civil engineering/architecture materials, environmental solutions, medical/healthcare, beauty/health, livingware/interior, automotive materials, Viscotecs digital production systems, clothing textiles, sales promotion, and fiber processing. The company operates on a platform-plus-modules architecture with its core digital production system Viscotecs as an enabling technology across multiple product lines, supplemented by specialized material products (QUOLE synthetic leather, METAFLEX conductive materials), functional textile brands (FlexMove, PRIMORDIAL, SUNVEIL, Shadan), health/beauty brands (Comoace cosmetics, DEOEST odor control), and advanced R&D initiatives in satellites and carbon fiber prepreg (SERECARBO).

Differentiator

Problem solved

Functional benefit

Brands

• QUOLE: Synthetic leather product surpassing genuine leather, used in automotive seats, furniture, bags, accessories, and various applications.
• Viscotecs (ビスコテックス)
• METAFLEX
• Leganu
• BYERUS
• DEOEST
• Comoace (コモエース)
• FlexMove
• PRIMORDIAL
• SERECARBO
• Sunveil (サンベール)
• Shadan (シャダン)

Products and services

• Viscotecs (ビスコテックスス) Digital Production System Proprietary end-to-end digital production platform integrating design, inkjet printing, pattern cutting, and IT-controlled manufacturing for made-to-order, zero-inventory custom textile production. Supports 470,000+ dress combinations with 3-week delivery and 1-piece minimum order for apparel brands (B2B Viscotecs Make Your Brand) and consumers (Mashmania), plus art-restoration and signage applications.
• QUOLE (クオーレ) Synthetic Leather High-performance synthetic leather positioned as an alternative to genuine leather for automotive seats, furniture, bags, accessories, and fashion items. Delivers 4x wear resistance, approximately half the weight of real leather, 10+ year lifespan, and is manufactured with organic solvent usage reduced to 2-3% of conventional levels for environmental compliance.
• Leganu (レガヌ) Artificial Leather Artificial leather material for automotive interior applications, complementing QUOLE in Seiren's vehicle materials segment alongside fabric products for vehicle cabins.
• METAFLEX (メタフレックスス) Flexible Conductive Material Flexible conductive material providing electromagnetic shielding and conductivity in flexible form factors for electronics applications. Part of the electronics segment along with conductive fabrics, non-woven conductive fabrics, and sound-permeable waterproof filters.
• BYERUS (バイラス) Antiviral Technology and Products High-performance antiviral technology applied to PR sheets, masks, and other functional textiles. Maintains antiviral effectiveness of 99%+ virus reduction over time without special maintenance. Includes BYERUS Hybrid antiviral masks priced from ¥1,980 per unit (with filter). Recognized by JIDA Design Museum.
• NEW CureLa (キュアラ) Comprehensive Medical Information System Comprehensive medical information system for healthcare and nursing care institutions, providing digital workflow and patient information management under Seiren's medical/healthcare segment.
• SERECARBO (セレカーボン) Molding Carbon Fiber Prepreg Molding carbon fiber prepreg material for satellite and aerospace structural applications, leveraging Seiren's fiber processing expertise for the space and advanced manufacturing sector.
• FlexMove Sports and Innerwear Fabric Material technology for sports and inner wear applications delivering stretch and comfort performance within Seiren's clothing textile business segment.
• PRIMORDIAL (プリモーディアル) Seamless Knit Wear Seamless knit technology eliminating stitching for superior comfort in sports innerwear and fashion apparel, sold within Seiren's clothing textile business.
• SUNVEIL (サンベール) UV-A Blocking Material UV protection textile material targeting UV-A waves with 5% or less transmittance, UPF 30+ rating, and 150+ cc/cm2/sec air permeability for sun-protective clothing and indoor/outdoor applications.
• Shadan (シャダン) Heat-Blocking Polyester Heat-blocking polyester using core-sheath conjugate filament with infrared-reflecting ceramic core and titanium oxide sheath, providing solar heat reflection and UV protection for curtains, vehicle interiors, umbrellas, and clothing.
• Iceblast Third (アイスブラストサード) Cool-Touch Material Cool-touch material with approximately twice the water retention of previous Iceblast versions, featuring special resin coolness and point-touch surface texture for sportswear and bedding.
• Viscotecs PR Sheets (ビスコテックスPRシート) Fabric-based promotional signage produced via Viscotecs digital production, available in BYERUS antiviral variant. Used for big flags, banners, stage curtains (e.g., Kabukiza theater), and outdoor media walls at construction sites.
• Fiber Weed (ファイバーウィード) Contact Purification Material Contact purification material for environmental remediation applications under Seiren's environmental solutions segment.
• ViscoFortis (ビスコフォルティス) Fluororesin Inkjet System Fluororesin inkjet system providing over 20 years of high weather resistance for architectural and industrial decoration applications, including Saidex inkjet media.
• Glassguard High-Density Woven Vegetation Suppression Sheet High-density woven vegetation suppression sheet used in civil engineering applications for ground stabilization and vegetation control.
• Mistguard High-Performance Humidity-Adjusting Airtight Sheet High-performance humidity-adjusting airtight sheet for architectural applications, providing moisture management for building envelopes.
• Premiumthermo High-Durability Breathable Waterproofing Sheet High-durability breathable waterproofing sheet for architectural moisture management and heat reflection applications.
• Medical Composite Materials (Healthcare and Care Products) Composite materials and textile products used in medical, care, and health applications under Seiren's medical/healthcare segment.
• Comoace (コモエース) Cosmetics Brand Direct-to-consumer cosmetics brand offering skincare, hair care, body care, and makeup products with monthly subscription option featuring 10x loyalty points on regular delivery; products span ¥3,630 (Moist Oil) to ¥17,600 (Whitening Essence W).
• Cosmetics OEM Manufacturing Service Original equipment manufacturing (OEM) service for cosmetics, skincare, makeup, and beauty products, leveraging Seiren's material science capabilities for external brand partners.
• DEOEST (デオエスト) Odor-Control Functional Apparel and Accessories Direct-to-consumer odor-control functional underwear, apparel, cool-wear, medical/healthcare accessories (ostomy pouch covers from ¥3,454; abdominal wraps from ¥3,982; leg bag covers from ¥4,202; belts from ¥1,001), and BYERUS antiviral masks sold online and through subscription-style reorders.
• Satellite Development and Manufacturing Service Small satellite development and manufacturing service for commercial, research, and government space programs, leveraging Seiren's fiber machinery and software expertise to mass-produce micro-satellites.

Quantifiable outcome

• QUOLE synthetic leather: 4x abrasion resistance vs real leather; 10+ year lifespan; approx. 1/2 the weight of real leather; organic solvent usage reduced to 2-3% of conventional levels
• +4 more outcomes

Named customers9 records

Segments8 records

Ideal customer profiles7 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature13 records

Partnerships

One partnership is on record.

• Government of Guanajuato / Parque MarabiscoreOthers · 7 May 2026SEIREN VISCOTEC invested MX$800 million (approximately US$46 million) to establish a new manufacturing facility at Parque Marabis industrial park in Abasolo, Guanajuato, Mexico. The partnership with the Guanajuato industrial park supports the company's nearshoring strategy in North America, creating 200 direct jobs and strengthening production capacity in the Bajio region. This is the first major investment milestone marking Seiren's 10th anniversary in Mexico.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Emerging players

• Lectra SA: French technology company providing digital cutting, design, and on-demand manufacturing software for fashion and automotive industries. Comparable to Seiren's Viscotecs platform in providing digital production solutions that enable mass customization and inventory-free manufacturing for apparel brands.

Direct peers

• Shima Seiki Mfg., Ltd. Japanese manufacturer of computerized flat knitting machines and digital textile production systems (WHOLEGARMENT seamless knitting). Comparable to Seiren's Viscotecs and PRIMORDIAL seamless knit technologies for on-demand apparel manufacturing and digital textile production.
• Kolon Industries: Korean chemical and textile manufacturer producing polyester films, artificial leather, and industrial materials serving automotive and electronics customers. Comparable as a synthetic materials supplier targeting the same automotive interior and consumer electronics applications as Seiren.
• Alcantara S.p.A. Italian manufacturer of premium synthetic microfiber suede (Alcantara material) widely used in automotive interiors, fashion, and home furnishings. Directly comparable to Seiren's QUOLE and Leganu as a specialty synthetic material supplier to automotive OEMs and premium brands.
• Kuraray Co., Ltd. Japanese chemical manufacturer producing artificial leather (Clarino), synthetic leather (Amaretta), and resins used in automotive interiors and fashion. Directly competes with Seiren's QUOLE and Leganu synthetic leather lines for the same automotive OEM and apparel customer base.
• Hyosung TNC: Korean textile and chemical company producing spandex, polyester yarns, and artificial leather for automotive interiors and apparel. Comparable to Seiren in synthetic leather supply for global automotive OEMs and in performance textile fibers.

Broad incumbents

• Teijin Limited: Japanese chemical and materials company with aramid fibers, carbon fiber, and healthcare products. Comparable to Seiren in the breadth of high-performance materials for automotive, industrial, and healthcare segments, though Teijin is significantly larger.
• Toray Industries: Major Japanese textile, chemical, and advanced materials conglomerate producing fibers, films, and composites for automotive, apparel, and industrial markets. Directly comparable as a diversified Japanese textile/materials platform serving automotive interiors and apparel with proprietary technology portfolios.
• Toyobo Co., Ltd. Japanese textile and materials manufacturer producing films, fibers, and industrial materials including automotive and electronics applications. Comparable as a Japanese diversified materials company with overlapping automotive and industrial textile product portfolios.
• Asahi Kasei Corporation: Japanese diversified materials and chemical company with automotive interiors, electronics, and healthcare divisions. Comparable breadth to Seiren with overlapping automotive material and medical product offerings, though at substantially greater scale.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xtwitter.com/seiren_fukui
• Facebookfacebook.com/seiren.corporation
• Instagraminstagram.com/seiren.official

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries13 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 Seiren