What KAI Group does

KAI Group (KAI Corporation / 貝印株式会社) is a privately held Japanese cutlery and blade manufacturer founded in 1908 in Seki City, Gifu Prefecture, with global headquarters in Tokyo. The company produces over 10,000 blade-related products spanning kitchen knives (Shun, Sekimagoroku, Michel BRAS, SELECT100), personal care razors and grooming tools (miness, AUGER, KOBAKO, Kershaw, Paper Razor, THOLL), beauty tools, confectionery and sewing equipment, ophthalmic surgical blades manufactured in Class 100,000 clean rooms, and specialized industrial cutting blades for the food-safety and manufacturing sectors. Technology anchors include proprietary PINK coating (claimed to increase blade hardness by 70%), in-house heat treatment methods, and internally developed manufacturing automation equipment, with an 82.7% patent active-use rate (vs. 49.8% national average) and the FY2019 Japan Patent Office IP Achievement Award. KAI monetizes through B2B/B2C channels: direct-to-consumer via store.kai-group.com and a dedicated B2B store, alongside specialty kitchen retailers, home centers, mass merchants, professional field sales, and international wholesale/distribution partners. The Shun brand alone has shipped 10 million-plus units (as of October 2022), with approximately 90% of those sales generated internationally, primarily in the United States. KAI operates a wholly owned global manufacturing footprint across Japan, Vietnam (600 workers), Shanghai, the United States, India, and a Guangzhou-based consulting subsidiary, supported by marketing channels such as FACT Magazine, KAI FACTORY, Kai House Club, Kitchen Stage events, and the Gokko Land children's safety app (8.5M+ downloads).

Name

KAI Group

Legal name

貝印株式会社 (KAI Corporation)

Website

https://kai-group.com

Company type

Private

Founded year

1908

Operating status

Operating

Headcount range

11–50 employees

Short description

KAI Group (KAI Corporation), founded 1908 in Japan, manufactures precision blades for consumer, professional culinary, medical, industrial, and personal care markets across a global multi-brand, multi-channel platform anchored by the premium Shun kitchen knife line.

Ownership category

akta.pro rank

Product category

Cutlery and Razor Manufacturing

NAICS

Cutlery and Handtool Manufacturing (3322), Jewelry and Silverware Manufacturing (339910)

SIC

Cutlery, Handtools & General Hardware (3420), Jewelry, Precious Metal (3911)

akta.pro primary industry

Fine Jewelry Manufacturing & Atelier Production (CRAKAAAK)

akta.pro secondary industry

Fine Jewelry Manufacturing (Precious Metals & Gem-Set) (CRAKAIAA)

Keywords

• Kitchen knives
• Razor blades
• Surgical blades
• Industrial cutting tools
• Beauty care products

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices8 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Consumer Cutlery Products: Sale of household kitchen knives, including the Shun brand and traditional Japanese knives. Revenue generated from retail channels including specialty stores, home centers, and mass retailers globally.
2. Personal Care Products: Razors, nail clippers, tweezers, and beauty tools sold to consumers through retail and direct channels. Includes both premium and mass-market product lines.
3. Professional/Culinary Products: Professional-grade kitchen knives and tools for chefs and culinary professionals, including the Shun and Seki Magoroku brands. Serves both domestic Japanese market and international professional customers.
4. Medical Products: Ophthalmic knives and precision medical blades for healthcare and medical device applications. Sold to medical institutions and healthcare providers.
5. Online Direct Sales: Direct-to-consumer sales through KAI's official online store (store.kai-group.com), offering full product catalog with dedicated B2B section for business customers.
6. Sharpening Services: Knife sharpening and repair services for consumer and professional customers, extending product lifecycle and driving customer retention.

Pricing tiers

Go-to-market motion3 records

Distribution channels6 records

Marketing channels10 records

Core offering

KAI Group designs, manufactures, and sells precision blade products globally, including premium Japanese kitchen knives (Shun, Sekimagoroku, Michel BRAS, SELECT100), personal care razors and grooming tools (miness, AUGER, KOBAKO, Kershaw, Paper Kamikamisori, THOLL), beauty tools, professional culinary cutlery, ophthalmic/medical surgical blades, and industrial cutting blades. The company sells both directly to consumers via its own online store and through retail, and directly to enterprises (hospitals, manufacturers, professional chefs, salons) through a dedicated B2B channel and field sales.

Product overview

KAI Group (KAI Corporation) is a Japanese cutlery manufacturer founded in 1908 in Seki City, Gifu Prefecture, offering a diverse portfolio of blade-related products. The company operates as a platform of brands across multiple categories: premium kitchen knives (関孫六/Sekimagoroku, 旬/Shun, Michel BRAS, SELECT100), personal care razors (miness, AUGER, KOBAKO, Kershaw, 紙カミソリ/Paper Razor), beauty tools, confectionery equipment, and professional/industrial products. Key products include the new THOLL sustainable metal razor with magnetic 5-blade technology, Shun DualCore Damascus knives, and the Gokko Land educational app for children. KAI Group also manufactures medical blades including ophthalmic surgical knives, industrial cutting tools, and operates B2B wholesale channels. The company manages 8 global manufacturing facilities across Japan, Vietnam, Shanghai, USA, and India, producing over 10,000 blade-related products.

Differentiator

Problem solved

Functional benefit

Brands

• 関孫六 (Sekimagoroku): Premium kitchen knife brand inheriting traditional blade-making techniques from the Kamakura-era Seki region swordsmith tradition.
• 旬 (Shun)
• SELECT100
• Michel BRAS
• miness
• AUGER
• KOBAKO
• Kershaw
• 紙カミソリ (Paper Razor)
• THOLL
• Gokko Land

Products and services

• Shun Kitchen Knives Premium Japanese kitchen knife brand featuring Damascus steel patterns and VG10/VG2 high-carbon stainless steel in a 70-layer herringbone microstructure. Sold globally with approximately 90% of sales generated outside Japan (primarily the United States), where it is the #1 selling Japanese chef's knife.
• Sekimagoroku Kitchen Knives Premium Japanese kitchen knife brand inheriting traditional blade-making techniques from the Kamakura-era Seki region swordsmith tradition. Known for high-quality blades developed with master craftsmen.
• Michel BRAS Kitchen Knives French premium kitchen knife line developed in collaboration with three-star Michelin chef Michel Bras. Targets fine-dining establishments and culinary professionals.
• SELECT100 Kitchenware Kitchen housewares brand offering functional everyday cooking tools and accessories for household use.
• miness Razors Personal care razor and grooming brand targeting women. Backed by 12 intellectual property rights forming an IP network around the brand.
• AUGER System Razors Premium system razor brand featuring innovative cartridge technology and protected by 12 intellectual property rights.
• KOBAKO Grooming Products Personal care and grooming products brand offering stylish, premium razor and grooming tools.
• Kershaw Knives American traditional knife brand operated by KAI Group, featuring outdoor and everyday-carry knives for the U.S. market.
• Paper Kamikamisori Razors Eco-friendly paper-based disposable razor brand (紙カミソリ) offering a sustainable alternative to plastic disposable razors.
• THOLL Razor Sustainable full-metal razor with a world-first patented magnetic 5-blade swapping system. Plastic-free, crafted from Japanese steel, featuring a pivoting head for facial contour following and touch-free blade replacement. Includes approximately a 2-year supply of 48 blades and is positioned as a long-term cost-effective alternative to cartridge subscription models.
• Professional Kitchen Knives Commercial-grade kitchen knives for professional chefs, restaurants, and culinary institutions. Sold through dedicated B2B channels and field sales with quote-based pricing.
• Medical Blades (Ophthalmic Surgical Knives) Medical blades and ophthalmic surgical knives produced in Class 100,000 clean rooms. Sold to hospitals, surgical centers, ophthalmology clinics, and medical device manufacturers requiring precision surgical instruments.
• Industrial Blades Specialized industrial cutting blades for manufacturing and industrial applications, including utility knives and food-safety foreign matter prevention knives.
• Salon Professional Products Professional hair and beauty salon equipment and tools, including KASHO haircut scissors and trimmers for beauty industry professionals.
• B2B Wholesale Online Store Dedicated wholesale-only online store for business customers, professional chefs, medical/healthcare providers, industrial buyers, and salon professionals.
• Knife Sharpening Service Professional knife sharpening and restoration service for kitchen knives, extending product lifecycle and driving customer retention for consumer and professional customers.
• Gokko Land App Children's social experience educational app providing interactive games about household safety, including the 'Ouchi no Hamonokai' game that teaches children about cutting tools and safe handling practices.

Quantifiable outcome

• Shun brand exceeded 10 million units shipped by October 2022
• +3 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• GVA TECH Co., Ltd.coreTechnology or IntegrationGVA TECH Co., Ltd. provides its legal automation tool 'OLGA' to KAI Corporation. This technology partnership enables KAI to automate and streamline legal processes, improving operational efficiency in corporate governance and compliance functions.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Zwilling J.A. Henckels: German premium cutlery and kitchenware manufacturer with global distribution. Directly competes with KAI/Shun in premium kitchen knives and is also parent of Miyabi, a Japanese-style knife brand overlapping with Shun's positioning.
• Wüsthof: German premium kitchen knife manufacturer with strong US distribution. Competes head-to-head with Shun in professional and premium consumer cutlery channels, including specialty kitchen stores and culinary schools.
• Victorinox: Swiss manufacturer of knives, kitchen cutlery, and Swiss Army multi-tools. Overlaps with KAI in kitchen knives, personal care tools, and the Kershaw/KAI outdoor/EDC segment, with similar global retail distribution.
• Global (Yoshikin): Japanese kitchen knife manufacturer known for stamped stainless steel designs. Direct competitor to Shun and Sekimagoroku in premium Japanese cutlery, with strong presence in professional kitchens and culinary schools worldwide.
• Miyabi: Premium Japanese-style kitchen knife brand owned by Zwilling. Competes directly with Shun in the high-end Damascus steel knife segment and shares similar retail channels and target customer (premium home chefs and professionals).
• Mac Knife: Japanese kitchen knife manufacturer specializing in high-performance stamped blades. Competes with Shun in the professional chef segment and specialty kitchen retail, with strong brand recognition among culinary professionals.
• Swann-Morton: UK-based manufacturer of surgical blades and medical cutting instruments. Directly competes with KAI Medical in ophthalmic and surgical knives, serving similar hospital and medical device customers with comparable regulatory and quality requirements.

Broad incumbents

• Stanley Black & Decker: Global diversified tool manufacturer with handtools, industrial cutting tools, and consumer products. Broadly competes with KAI in handtool and industrial blade categories through its Stanley and DeWalt brands, with significantly larger scale and resources.
• Fiskars: Finnish global consumer products company with scissors, cutting tools, and hand tools. Competes with KAI in scissors, sewing tools, and craft cutting tools, with similar mass-market retail distribution and multi-category brand portfolio approach.
• Edgewell Personal Care: US personal care company owning Schick, Schick Hydro, and other razor brands. Competes with KAI's miness, AUGER, KOBAKO, and THOLL razor brands in mass-market and premium razor categories, with established retail relationships and significantly larger marketing budgets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/kai_corporation
• YouTubeyoutube.com/user/KaiCorpJapan
• Facebookfacebook.com/kai.corporation
• Instagraminstagram.com/kai_corporation/?hl=ja

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries6 records

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about KAI Group