Yamasa

What Yamasa does

Yamasa Corporation (ヤマサ醤油株式会社) is a privately-held Japanese food and biochemical manufacturer founded in 1645 by the Hamaguchi family in Choshi, Chiba Prefecture. With over 380 years of continuous operation, the company produces soy sauce (shoyu), tsuyu (dipping/soup bases), ponzu, dashi products, and other condiments under multiple sub-brands including Oishii Shoyu wa Akai, Kinu Shoyu, Kore! Uma!! Tsuyu, Yummy!, and Konbu series. The company operates two principal segments: a consumer and professional food products division (serving households via retail and restaurants via B2B channels) and a diagnostics/pharmaceuticals division (producing FDA-approved treatments including an HIV-1 drug). Yamasa employs 501-1,000 people and operates a global distribution network through wholly-owned subsidiaries in the USA, the Netherlands, Thailand (Asia-Oceania), and Indonesia, plus several domestic operating subsidiaries including the Narita Factory.

Yamasa's business model combines multi-channel consumer distribution (supermarkets, convenience stores, e-commerce via shop.yamasa.com), direct B2B sales to food service operators and food processors, and sales of diagnostic and biochemical products. The company sells both household-sized consumer packages and larger professional/concentrated formats (e.g., 500ml-590g packs for ramen operators). GTM emphasizes co-development with respected culinary establishments (Kagaya head chef, Yokokura Store House ramen shop), celebrity-endorsed TVCM campaigns (featuring Tomoya Nakamura), recurring PEANUTS/Snoopy brand collaborations (10th edition in 2026), and a content-marketing recipe platform (Happy Recipe) to drive consumer engagement.

The company's core technology is traditional Japanese soy sauce brewing using koji (Aspergillus oryzae) fermentation, including a proprietary layered aging technique (重ね仕込み火入れ醤油). Yamasa also operates a diagnostics division and pharmaceuticals/biochemicals division whose R&D led to an FDA-approved HIV-1 treatment drug. Recent strategic activity includes the integration of San-Jirushi Brewing (a 220+ year fermentation specialist), multiple professional-use product launches in 2025-2026, and ongoing expansion of the biochemicals/pharma vertical. The company is led by President Naoyuki Ishibashi and remains under Hamaguchi family ownership.

Name

Yamasa

Legal name

YAMASA CORPORATION

Website

https://yamasa.com

Company type

Private

Founded year

1928

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Yamasa Corporation (ヤマサ醤油株式会社) is a privately-held Japanese manufacturer founded in 1645, producing soy sauce, tsuyu, ponzu, and dashi products for retail consumers, food service operators, and food processors, plus diagnostic and pharmaceutical products including an FDA-approved HIV-1 treatment. The family-owned company operates globally through subsidiaries in the USA, Europe, Asia-Oceania, and Indonesia.

Ownership category

akta.pro rank

Product category

Soy Sauce and Japanese Seasonings

NAICS

Flavoring Syrup and Concentrate Manufacturing (31193)

SIC

Food And Kindred Products (2000)

akta.pro primary industry

Soy Sauce, Tamari & Asian Condiments Manufacturing (AFAKADAF)

akta.pro secondary industry

Fermented & Specialty Condiments Manufacturing (Kimchi Base, Gochujang, Miso-Based Sauces) (AFAKADAO)

Keywords

• Japanese soy sauce brewing
• Tsuyu and tare sauces
• Ponzu seasoning
• Kombu dashi products
• Food service condiments

Headquarters

HQ city

Choshi

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

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

1. Consumer Food Products: Revenue from selling soy sauce, tsuyu (dipping sauces), ponzu, and other condiments to retail consumers through supermarkets and convenience stores.
2. Business/Processing Products: B2B sales of seasonings and sauces to restaurants, food service operators, and food processing companies.
3. E-commerce Direct Sales: Direct consumer sales through the Yamasa online shop (shop.yamasa.com) featuring the 'Yamasa吟選グルメ便' (Yamasa Premium Gourmet Delivery) service.
4. Diagnostics and Pharmaceuticals: Revenue from the Diagnostics Division and Pharmaceuticals/Chemicals Division, including FDA-approved medical treatments.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Yamasa Corporation is a Japanese manufacturer that brews, blends, packages and sells soy sauce together with a broad range of Japanese seasonings — tsuyu (dipping/noodle sauce), tare (cooking sauce), ponzu, kombu (kelp) dashi products, hot pot soup bases, sukiyaki and tempura specialty sauces, and seasoned vinegar — through separate household and professional/food-service product lines. It also operates a Diagnostics and Pharmaceuticals/Biochemicals division that produces diagnostic reagents and pharmaceutical ingredients, including a US FDA-approved HIV-1 treatment drug derived from its in-house R&D.

Product overview

Yamasa is a traditional Japanese food manufacturing company primarily producing soy sauce (酱油), sauces (つゆ・たれ), and ponzu products. The portfolio is organized into two main segments: household consumer products and professional food service/industrial products. Key product lines include core soy sauce, the 鮮度生活 (Sendo) freshness-preserving brand, 昆布 (konbu/kelp) series products including ponzu and broth, 鍋つゆ (hot pot soups), various 専科 (specialized) products for specific dishes like sukiyaki and tempura, and the 醬湯 (Jantan) soy-based broth. The company also operates a separate diagnostics and biochemicals business unit. Products range from consumer retail items in various package sizes to concentrated professional-use formulations for commercial kitchens.

Differentiator

Problem solved

Functional benefit

Brands

• おいしいしょうゆは赤い: Red label soy sauce brand featuring 'Red Soy Sauce' products
• 鮮度生活 (Sendo Seikatsu)
• 絹しょうゆ (Kinu Shoyu)
• 醬湯（ジャンタン）(Jantan)
• これ!うま!!つゆ (Koreuma Tsuyu)
• Yummy!
• 昆布つゆ・昆布つゆ白だし
• 昆布ぽん酢
• まる生ぽん酢
• ヤマサストレートつゆシリーズ
• 鍋つゆ
• すき焼専科・天ぷら専科
• おまかせ酢
• 有機丸大豆の吟選しょうゆ
• 医薬・化成品診断薬

Products and services

• Yamasa Soy Sauce (Koikuchi / 'Oishii Shoyu wa Akai' red-label line) Yamasa's flagship dark soy sauce (koikuchi shoyu) portfolio, marketed under the 'Oishii Shoyu wa Akai' (good soy sauce is red) brand positioning and sold through Japanese supermarket and convenience-store retail for household and professional use.
• Kinu Shoyu / Silk Soy Sauce (regular and low-sodium) Silky smooth silk soy sauce produced using Yamasa's layered-aged fermentation method combining three types of koji, offered in regular and reduced-salt (Genen) variants, packaged in proprietary freshness-preserving bottles that keep the sauce fresh for up to 90 days after opening.
• Konbu Tsuyu (Kelp Broth and Dipping Sauce line) Yamasa's kelp-based broth and tsuyu (dipping/noodle sauce) product line including Konbu Tsuyu, Konbu Tsuyu Shiro-dashi (white dashi) and related concentrated/packaged variants, marketed for home hot-pot, noodle and cold-dish preparation and for professional-use restaurants.
• Ponzu Sauces (Konbu Ponzu and Maru-nama Ponzu) Ponzu (citrus-soy) sauce portfolio including the kombu-dashi-rich 'Konbu Ponzu' line and 'Maru-nama Ponzu' (fresh, raw-style ponzu), sold in retail pack sizes and used across hot pot, salad, grilled meat and grilled-fish applications.
• 'Kore! Uma!! Tsuyu' Versatile Seasoning Sauce Multi-purpose 'Kore! Uma!! Tsuyu' (this! delicious!! soup/tsuyu) seasoning sauce positioned as a single-bottle seasoning-and-dashi solution, supported by TV commercials featuring actor Tomoya Nakamura under the slogan 'だしも味付けも、これ1本' (one bottle for both dashi and seasoning).
• Yummy! Multipurpose Cooking Sauce Yamasa's Yummy! all-purpose cooking sauce brand (including Korean-spicy variants) for stir-fry, grilling and pan-fry applications, distributed through retail and used in the LOGOS×Yamasa outdoor-meal co-marketing campaign.
• Nabe Tsuyu / Hot Pot Soup line Hot pot soup (nabe tsuyu) product family covering shio-dashi, ginger, mapo, garlic and supervised premium variants, including the San-Shirushi Kagaya head-chef-supervised koji sweet ginger-flavored white dashi hot pot soup (750g pouch, 2025-08-20).
• Sukiyaki Senka and Tempura Senka Specialty Sauces Specialized Japanese cooking sauces dedicated to two signature dishes — sukiyaki (Japanese beef hot pot) dipping sauce and tempura dipping sauce — sold in retail pack sizes for household use.
• Jantan (醬湯) Fragrant Soy-based Broth Yamasa's 'Jantan' (醬湯) fragrant soy-based clear broth line used as a cooking and soup base, promoted through the dedicated brand site 'janjan' (じゃんじゃん).
• Yuuki Marudaizu no Ginsen Shoyu (Organic Whole-Soybean Premium Soy Sauce) Premium organic whole-soybean soy sauce made from certified-organic whole soybeans, positioned at the top of the Yamasa soy-sauce range and supported by Yamasa's dedicated '有機' (organic) communications program.
• Omakase Su (Seasoned Vinegar) Yamasa's seasoned vinegar ('Omakase Su') product line sold through retail for sushi rice, salads and general Japanese cooking applications.
• Yamasa Professional Ramen Bases (Yokokura-supervised Konbu Water & Tanrei Shoyu Ramen Soup Concentrate) Professional-use ramen and dipping-noodle bases co-developed with championship ramen shop Yokokura Store House, including a powder kelp-water dipping-noodle base and a light soy sauce ramen soup concentrate, sold through food-service distributors to ramen restaurants and noodle shops.
• Yamasa Uni Sauce Mild 590g Professional Pack Professional-use mellow sea-urchin (uni) flavored sauce made with seafood umami and soy milk, packaged in a 590g format for restaurants and food-service operators seeking cross-menu versatility.
• San-Shirushi Kagaya Supervised Koji Hot Pot Soup (Salty Dashi, Ginger Flavor) Co-developed hot pot soup supervised by the head chef of traditional inn Kagaya (Wakura Onsen, Noto Peninsula / Kanazawa), produced jointly by Sanjirushi Brewing and Yamasa, featuring a koji-sweet white dashi base with ginger flavor and sold through retail and food service channels.
• Diagnostics and Biochemicals / HIV-1 Treatment Drug Yamasa's Diagnostics and Pharmaceuticals/Biochemicals division operates dedicated business units at diagnostics.yamasa.com and yamasa-biochem.com, producing diagnostic reagents and pharmaceutical ingredients whose R&D yielded a US FDA-approved HIV-1 treatment drug.

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered core, flagship and minor.

• San-Jirushi Brewing Company (サンジルシ醸造)coreStrategic or Co-development Partner · 18 July 2025San-Jirushi Brewing, with over 220 years of fermentation expertise, collaborated with Yamasa on products including the '加賀屋総料理長監　修糀鍋つゆ白だし仕立て' hot pot soup. The partnership integrates San-Jirushi's traditional fermentation technology with Yamasa's distribution network.
• Yokura-kura Store House (ヨコクラストアハウス)coreStrategic or Co-development Partner · 14 February 2025Ramen shop that won the 2024 'Dai Tsu-men Haku Tsuke-men Nihon Icchi Kettei-sen' championship. Yamasa developed '昆布水つけ麺の素' and '淡麗醤油ラーメンスープ' under their supervision, leveraging Yamasa's kelp dashi expertise.
• Kagoya (加賀屋)flagshipStrategic or Co-development PartnerThe renowned traditional inn in Kanazawa's Noto Peninsula/Wakura Onsen collaborated with Yamasa and San-Jirushi to create the supervised hot pot soup product. Head Chef Ukou Fujio oversaw the flavor development.
• Hamaguchi YozominorOthersThe 10th generation Yamasa president and artist who pioneered color mezzotint printmaking. Yamasa operates the Musée Hamaguchi Yozo: Yamasa Collection museum showcasing his works.
• Minami KeikominorOthersCopper plate artist who studied under Hamaguchi Yozo. The museum occasionally hosts special exhibitions of her works.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Kikkoman: Global soy sauce market leader and the dominant Japanese competitor to Yamasa in both retail and food-service channels. Directly comparable as a soy sauce and sauce manufacturer with international B2B and B2C distribution.
• Mizkan: Major Japanese producer of vinegars, ponzu, tsuyu, and other condiments. Closely comparable to Yamasa's tsuyu and ponzu lines and operates similar retail and food-service channels in Japan and overseas.
• Higeta Soy Sauce: Long-established Japanese soy sauce and seasoning manufacturer. Directly competes with Yamasa in the heritage soy sauce segment and operates comparable brewing operations.
• San-Jirushi Brewing (Sanjirushi Shuzo): Japanese fermented condiment/soy sauce maker (220+ years heritage) recently integrated with Yamasa's commercial function. Closely comparable in traditional Japanese seasoning and fermentation.
• Ottogi: Korean soy sauce and condiment manufacturer with global reach. Direct competitor in Asian-style sauces and condiments across retail and food-service channels.

Broad incumbents

• Kewpie Corporation: Japanese condiment leader (mayonnaise, dressings, sauces) operating across retail and food-service channels. Comparable as a Japanese condiment maker with similar channel structure and food-service strengths.
• Ajinomoto: Diversified Japanese food and seasoning giant with umami and condiment offerings overlapping Yamasa's tsuyu and ponzu categories. Comparable as a Japanese food manufacturer with global distribution.
• House Foods Group: Diversified Japanese food manufacturer with significant curry, stew, and seasoning lines. Comparable as a Japanese seasoning/condiment producer with both retail and food-service reach.
• S&B Foods: Japanese producer of curry, spices, and specialty sauces. Comparable as a Japanese condiment company with retail distribution and food-service presence.
• Haitian (Foshan Haitian Flavouring): Largest Chinese soy sauce and condiment manufacturer. Comparable as a soy sauce/dressing producer with extensive retail distribution and food-service channels.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/uwasanoyamasan
• Facebookfacebook.com/yamasasoysauce
• Instagraminstagram.com/musee_hamaguchi

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries11 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 Yamasa