What Ishii Food does

Ishii Food (石井食品株式会社) is a Japanese processed food manufacturer headquartered in Funabashi, Chiba Prefecture, operating three production facilities located in Yachiyo (Chiba), Kyotamba (Kyoto), and Karatsu (Saga). The company produces a portfolio of prepared foods including meatballs, chicken hamburg, curry, rice-mixed products, and seasonal items such as osechi (New Year gift sets), with its flagship Obento-kun meatballs produced at a volume of 100 million units per year. The company's core production technology is "mutenka chiryo" (additive-free cooking), which underpins both its product formulations and its consumer brand positioning around clean-label food.

The business operates across multiple go-to-market channels. Consumer-facing distribution is concentrated in mass-market Japanese retail, with additional reach into Belc supermarket chain and other grocery partners, alongside direct-to-consumer subscription and corporate-gifting (including osechi) offerings. Institutional and intermediate channels include school cafeteria programs and JA agricultural cooperatives. The company also performs ODM curry manufacturing for external brands and operates an upstream supply ecosystem built on direct relationships with 30+ regional farmer groups, supported by a per-pack "Quality Assurance Number" traceability system. Revenue mechanics are a mix of unit-volume retail sales (meatballs at 100M units/year is the dominant SKU), higher-margin seasonal gift-set sales, recurring subscription revenue, and B2B contract manufacturing.

Name

Ishii Food

Legal name

石井食品株式会社

Website

https://ishiifood.co.jp

Company type

Private

Founded year

1945

Operating status

Operating

Headcount range

251–500 employees

Short description

Ishii Food is a Japanese processed-food manufacturer producing additive-free meatballs, chicken hamburg, curry, and seasonal osechi from three factories, serving Japanese households through retail, subscription, corporate gifting, and institutional channels.

Ownership category

akta.pro rank

Product category

Processed Convenience Foods

NAICS

Food Manufacturing (311), Perishable Prepared Food Manufacturing (311991)

SIC

Miscellaneous Food Preparations & Kindred Products (2090), Food And Kindred Products (2000)

akta.pro primary industry

Frozen prepared meals & entrées manufacturing (AFAKAHAA)

akta.pro secondary industries

Ethnic & international prepared meals manufacturing (AFAKAHAG), Convenience side dishes (mac & cheese, mashed potatoes, rice dishes) manufacturing (AFAKAHAI)

Keywords

• Processed food products
• Additive-free cooking
• Ready-to-eat meatballs
• Japanese convenience foods
• Regional ingredient sourcing

Headquarters

HQ city

Ichikawa

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Processed Food Products (Consumer Retail): Ishii Food generates the majority of its revenue from selling processed food products including meatballs, chicken hamburg, curry, rice mixed products, and seasonal regional specialty items through retail stores, supermarkets, and online channels. Products are sold as ready-to-eat or ready-to-heat items.
2. E-commerce / Direct Online Sales: The company operates its own online store (shop.directishii.net) for direct-to-consumer sales, offering products not available in physical retail, subscription regular delivery services, gift sets, and limited seasonal items.
3. Viridian Community Café and Direct Sales Store: The Viridian community space in Funabashi generates revenue through café food and beverage sales, direct merchandise sales, event space rentals, and community rental programs.
4. Corporate Gifts and Osechi (New Year) Products: Seasonal product lines including osechi (New Year cuisine sets) featuring regional premium ingredients such as salmon roe, herring, and kuruma ebi shrimp, sold primarily as corporate and personal gifts.
5. ODM/OEM Curry Manufacturing: Ishii Food offers curry products under customer brands through its ODM/OEM service, leveraging its manufacturing capabilities and additive-free cooking technology.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

Ishii Food manufactures and sells additive-free processed food products including signature meatballs, chicken hamburg, curry dishes, rice mixed products, and seasonal regional specialty items. The company operates three manufacturing plants (Yachiyo, Kyotamba, and Karatsu) and distributes nationwide through supermarkets, its direct-to-consumer online store, and the Viridian community café in Funabashi. It also offers ODM/OEM curry manufacturing under customer brands.

Differentiator

Problem solved

Functional benefit

Brands

• Viridian (ヴィリジアン): Community house operated by Ishii Food as a community space concept 'connecting food and people', offering cafe services, rental rooms, product sales, and local producer market events in Funabashi, Chiba.
• Obento-kun (おべんとクン)
• Oishii no Tane (おいしいの種)
• Open Ishii (OPEN ISHII)

Products and services

• Ishii's Meatballs (イシイのミートボール) The signature product of Ishii Food, made with domestic chicken and organic tomato paste. A ready-to-eat meatball in tomato sauce for general consumers and households.
• Ishii's Chicken Hamburg (イシイのチキンハンバーグ) Hamburger made with 100% domestic young chicken, featuring various regional specialty ingredients and sauces for general consumers.
• Anytime Meatballs (いつでもミートボール) Room temperature long-term storage version of the popular Obento-kun Meatballs, portable and enjoyable anywhere, serving as emergency food stock.
• Light Morning Meatballs (あっさり朝ミートボール) Morning-focused meatball product with a light taste profile, designed for breakfast or morning meals.
• Curry Meatballs (カレーミートボール) Meatballs in mild curry sauce with vegetables, made with 100% domestic young chicken. Can be eaten cold or heated.
• Chicken Soboro (とりそぼろ) Long-selling chicken flaked product to sprinkle on rice, a staple household item for daily meal preparation.
• Peti Miito (プチミート) - Food Allergy-Conscious Line Food allergy-conscious product line including teriyaki and tomato flavors, designed for consumers with allergy considerations.
• Osechi/New Year Cuisine (おせち料理) Premium New Year's cuisine featuring regional specialties including salmon roe from Hokkaido, sea urchin, and kuruma prawns from Yakushima. Sold as corporate and personal gifts.
• 1.5x Meatballs (1.5倍ミートボール) Larger size version of the popular meatball, 1.5 times the regular size, made with 100% domestic young chicken without eggs or dairy.
• Ishii's Hyaku Nigiri (イシイの佰にぎり) 100-year shelf-stable rice ball developed with Hyakushokuya, containing 10g+ protein, with square shape for easy handling, designed as long-term emergency food.
• Aged Peeled Chestnuts (熟成むき栗) Chestnuts aged at -2°C to 0°C for 2 weeks to enhance sweetness (8-10° Brix to 15° Brix), available from Ibaraki Kasama, Kyoto Kyotamba, and Gifu Yamagata prefectures.
• Ishii Regular Delivery Service (イシイの定期便) Monthly subscription delivery service providing regular shipments of Ishii products for bento and daily meals at preferential rates for individual consumers.
• Curry ODM/OEM Manufacturing Service ODM/OEM curry manufacturing service leveraging Ishii Food's manufacturing capabilities and additive-free cooking technology to produce curry products under customer brands for business clients.
• Viridian Community Café & Direct Sales Store (ヴィリジアン) Community house operated by Ishii Food as a community space concept connecting food and people, offering café services, event rental, direct product sales, and local producer market events in Funabashi, Chiba.
• Wakayama Yura Town Fresh Garlic Hamburg Tomato Sauce (和歌山由良町の生にんにくを使ったハンバーグ トマトソース) New hamburger product featuring fresh garlic from Wakayama Yura Town, known for its sweetness and mellow richness, in tomato sauce. National release.

Quantifiable outcome

• The 白子玉ねぎハンバーグ reached cumulative sales of 1 million servings by 2023, six years after its launch in 2017.
• +3 more outcomes

Named customers5 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

Feature4 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• ISSO (イッソ) — Organic Japanese TeaminorChannel Partner/ Reseller/ Distributor · 1 January 2026Ishii Food's Viridian community space sells premium organic Japanese tea products under the ISSO brand, sourced from rare organic tea leaves representing less than a few percent of Japan's total tea production. Available in package, can, and assorted box formats.
• AIVICKminorStrategic or Co-development Partner · 1 January 2025Ishii Food and AIVICK jointly developed meatball menu items for AIVICK's 'Chef's Additive-Free Cooking' product line, scheduled to launch in September 2025. This partnership aims to make additive-free food options more accessible to consumers.
• Producer Group 'Gyokufu' (生産者グループ「玉府」)coreStrategic or Co-development Partner · 1 January 2024A newly formed producer group in Obu City established specifically to supply onions to Ishii Food for the company's flagship 'イシイのおべんとクンミートボール' product starting June 2024. This represents a significant expansion of the Obu City partnership from limited seasonal products to year-round standard production.
• Obu City, Aichi Prefecture (愛知県大府市)coreStrategic or Co-development Partner · 1 January 2023Ishii Food partners with Obu City to preserve and promote 'Aichi Traditional Vegetables' (木之山五寸にんじん and 知多3号玉ねぎ). The company uses these traditional vegetables in products, provides donations through corporate hometown tax contribution system, and collaborates on agricultural preservation activities including harvest experiences and school food education.
• Kyōsō Samurai (京葱SAMURAI株式会社)coreStrategic or Co-development Partner · 1 January 2023A Kyoto-based agricultural group producing nine-row green onions (九条ネギ) across 10 farms totaling 40 hectares — the largest nine-row green onion producer in Kyoto Prefecture. They partner with Ishii Food to convert their agricultural products into hamburg products, contributing to regional agriculture promotion and food waste reduction by utilizing all parts of the harvested produce.
• Takeoka Shoyu (竹岡醤油株式会社)coreStrategic or Co-development Partner · 1 January 2023A Kyoto Kameoka-based soy sauce manufacturer founded in 1870 (Meiji 3), known as the 'Mozart-brewed soy sauce' for playing Mozart music throughout its kura (brewing warehouse). They supply soy sauce to Ishii Food for the Maruso Onion Hamburger product, a local Kyoto prefecture collaboration.
• Sumidaya Shōten (株式会社隅田屋商店)minorStrategic or Co-development Partner · 1 January 2022A Tokyo Sumida-based rice specialist founded in 1905 (Meiji 38), operated by a fifth-generation owner who is also a five-star rice master. They developed a custom rice blend (70% Chiba Fusaotome, 30% Hokkaido Yumepirika) specifically for Ishii Food's bamboo shoot mixed rice product, applying their traditional slow-milling method that takes seven times longer than standard milling.
• Saitama Fukko (埼玉福興株式会社)coreStrategic or Co-development Partner · 1 January 2021Saitama Fukko operates social farms employing people with disabilities and those facing employment difficulties. They supply onions to Ishii Food for the '埼玉熊谷の玉ねぎと食べる和風ソースハンバーグこくうま醤油仕立て' product sold exclusively at Belc. This is a three-way partnership between Saitama Fukko (production), Belc (retail), and Ishii Food (processing), representing a social impact initiative combining welfare, agriculture, and food processing.

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Yakult Honsha: Japanese health-and-functional-foods company with a national retail distribution network and a growing prepared-foods portfolio. Compares to Ishii on health-positioned retail packaged foods and broad household distribution, though its core franchise is dairy/fermented beverages.
• Mizkan Holdings: Japan-headquartered producer of vinegars, sauces, and prepared foods with a substantial retail presence. Overlaps with Ishii on sauce and prepared-meal components but with a broader portfolio spanning condiments, dressings, and packaged meals.
• Maruha Nichiro: Major Japanese seafood and prepared-foods conglomerate with a broad retail and foodservice portfolio including prepared frozen meals. Competes with Ishii for ready-meal occasions but covers a far wider product and channel footprint.
• NH Foods (Nippon Ham): One of Japan's largest food conglomerates with a broad portfolio spanning fresh meats, processed meats, dairy, and prepared meals. Overlaps with Ishii in prepared-meat products but at materially larger scale and broader category breadth.

Direct peers

• House Foods Group: Major Japanese food manufacturer with a leading position in retail curry roux and a growing prepared-meals business. Directly competes with Ishii on curry and retort products and competes for retail shelf space and consumer curry-meal occasions.
• Nichirei Foods: Japan's leading frozen prepared-meal manufacturer offering ready-to-eat and ready-to-heat products across retail and foodservice. Overlaps with Ishii's prepared-meals offering in the category and competes for the same household meal occasions.
• Kibun Foods: Long-established Japanese prepared-foods company producing chikuwa, fish cakes, and other ready-to-eat products for retail and foodservice. Comparable in retail-channel focus, product format, and Japanese consumer brand positioning.
• Prima Meat Packers: One of Japan's largest prepared-meat manufacturers with a portfolio of meatballs, hamburgers, sausages, and deli meats sold through retail and foodservice. Directly competes with Ishii's core meatball and chicken-hamburg SKUs and operates at significantly larger scale.
• Marudai Food: Japanese prepared-meat and sausage manufacturer with retail and institutional distribution. Competes with Ishii in the prepared-meat category with overlapping products and a similar mass-market retail footprint.
• Ebara Foods: Mid-cap Japanese prepared-foods manufacturer specializing in retort simmered dishes, soups, and convenient meal components. Closely comparable to Ishii on product format, retail channel, and target meal-occasion use case.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/ishii_official
• YouTubeyoutube.com/@ishiifood_official
• Facebookfacebook.com/ishiifood.co.jp
• Instagraminstagram.com/ishii_official

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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

M&A

Investments1 record

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

Frequently asked questions about Ishii Food