What STI Foods Holdings does

STI Foods Holdings (株式会社ＳＴＩフードホールディングス) is a Tokyo-headquartered, publicly listed Japanese seafood-focused food manufacturer (Tokyo Stock Exchange Standard Market, ticker 2932) operating across three temperature zones — chilled, frozen, and ambient/retort — with 5 chilled factories and 4 ambient factories nationwide delivering 350,000–400,000 meals per day of production capacity. The group generates revenue through two principal streams: (1) Seafood Prepared Foods (食品), comprising branded and private-label chilled, frozen, canned, and retort products (grilled fish, cup salads, marinated mackerel, sardine patties) sold primarily to convenience store chains; and (2) Seafood Ingredients (食材), comprising salmon flakes, ikura, and mentaiko supplied via ingredient traders to daily food manufacturers for use in onigiri, bento, pasta, and salads. Approximately 80% of revenue is concentrated with a single customer, Seven-Eleven Japan, across its ~20,000-store network, supplemented by secondary channels including other convenience and retail chains, ingredient traders, station-concourse retail (via Ajino Hama Group, acquired April 2024), and an owned e-commerce storefront.

The company's competitive position rests on a stack of proprietary technologies developed over 15+ years of R&D: a taste numericalization system that converts skilled technician tacit knowledge into formal specifications across amino acids, fats, moisture, Brix, pH, color, hardness, and viscosity; gas-replacement packaging (modified atmosphere packaging replacing 99.7% of air with nitrogen) that extends chilled shelf life to approximately 12 days — roughly 3x the conventional 2-day limit — reducing sales loss and food waste; a patented salmon roe aging/sterilization process enabling preservative-free and artificial-coloring-free ikura for onigiri; a patented salmon flake manufacturing process replicating home-grilled flavor at factory scale; bone-softening technology enabling whole-fish consumption of sardines and mackerel; and a 20-meter continuous smoked salmon production line at the Ishinomaki (Miyagi) facility. The group holds MSC-CoC and ASC-CoC sustainable-seafood certifications and operates vertically integrated procurement through STI America Inc. and STI CHILE S.A.

Business model mechanics are B2B sales-led with embedded product development: sales representatives serve as the central drivers of the new-item pipeline, collecting POS data and customer insight from major convenience store clients to propose new or revised products (approximately 35+ new menu items per year), and pricing is negotiated bilaterally with retail chain customers rather than disclosed publicly. The group also markets three consumer-facing sub-brands — STONE ROLLS (canned seafood from STI Miyagi), FIRE PORTS (canned seafood from STI Sanyo/Yaizu with a 70-year heritage), and Ibusa (燻さば, smoked seafood) — and has stated a long-term revenue aspiration of 1,000 billion yen across approximately 35 countries, supported by ongoing capacity expansion (Kansai factory acquisition July 2024) and international channel development (Taiwan Seven-Eleven partnership from July 2023, planned North American 7-Eleven West Coast launch in 2025). FY2025 revenue was 386 billion yen (below the 400 billion yen initial guidance) on operating profit of 25.6 billion yen, with FY2024 revenue of 355.8 billion yen reflecting +11.9% YoY growth.

Name

STI Foods Holdings

Legal name

株式会社 ＳＴＩフードホールディングス

Website

https://shintokyo.co.jp

Company type

Public

Founded year

2017

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

STI Foods Holdings is a Tokyo-listed Japanese seafood food manufacturer producing chilled, frozen, and ambient prepared seafood and ingredients — primarily for Seven-Eleven Japan's ~20,000 stores (~80% of revenue) — using proprietary gas-replacement packaging and taste numericalization technology across a nationwide multi-temperature factory footprint.

Ownership category

akta.pro rank

Product category

Seafood Prepared Foods Manufacturing

NAICS

Seafood Product Preparation and Packaging (31171), Frozen Specialty Food Manufacturing (311412), Perishable Prepared Food Manufacturing (311991)

SIC

Prepared Fresh Or Frozen Fish & Seafoods (2092), Canned, Frozen & Preservd Fruit, Veg & Food Specialties (2030)

akta.pro primary industry

Frozen Seafood Meals & Value-Added Seafood (CRADADAG)

akta.pro secondary industries

Frozen Prepared Meat & Seafood Meals (AFANAFAC), Chilled/Refrigerated Prepared Meat & Seafood Meals (AFANAFAD), Shelf-Stable/Retort Prepared Meat & Seafood Meals (AFANAFAE)

Keywords

• Seafood prepared foods
• Convenience store supply
• Canned seafood manufacturing
• Fish ingredient supply
• Retort food production

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Seafood Prepared Foods (食品): Manufacture and sale of chilled/frozen prepared seafood foods (grilled fish, boiled fish, marinated mackerel, cup salads) primarily to convenience stores. Also includes canned/retort seafood products (mackerel, sardines, sardine patties, chicken and beef stews). Production across 5 chilled factories and 4 ambient-temperature factories.
2. Seafood Ingredients (食材): Sale of seafood ingredients (salmon flakes, ikura, mentaiko) to daily food manufacturers through ingredient traders for use in onigiri, bento, pasta, and salads. Specialty salmon flake production using proprietary processes that replicate home-cooked flavor and texture in factory settings.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels3 records

Core offering

STI Foods Holdings manufactures and sells chilled, frozen, and ambient-temperature seafood prepared foods (grilled fish, boiled fish, marinated mackerel, cup salads, canned and retort products) and seafood ingredients (salmon flakes, ikura, mentaiko) primarily to convenience store chains in Japan, with Seven-Eleven accounting for approximately 80% of revenue. The company operates 5 chilled factories and 4 ambient-temperature factories producing across three temperature zones, with daily capacity of 350,000-400,000 meals.

Product overview

STI Foods Holdings is a seafood-focused food manufacturing company that operates across three temperature zones (frozen, chilled/refrigerated, and ambient/retort) and develops and manufactures finished consumer products and food ingredients for convenience stores and retail chains. The product portfolio spans chilled prepared seafood dishes (grilled fish, octopus salads, seared mackerel) sold under the company's own brands, retort and canned products under the STONE ROLLS, FIRE PORTS, and 燻肴 (Ibusa) brands, and seafood ingredients (salmon roe, aged cod roe, salmon flakes) supplied to daily meal manufacturers and convenience store onigiri producers. The company operates B2B through major convenience store chains and retail, with a subsidiary-operated online shop. The portfolio is organized into two main segments: 'Foods' (prepared chilled/refrigerated and ambient canned/retort consumer products) and 'Ingredients' (seafoods for onigiri, bento, pasta, and salad fillings).

Differentiator

Problem solved

Functional benefit

Brands

• STONE ROLLS（ストンロルズ）: Canned seafood brand produced by STI Miyagi. Features products such as Kinka saba (金華さば), saba harissa, saba olive oil, saba curry, and saba mentaiko. Products are available at major convenience stores and retail outlets.
• FIRE PORTS（ファイヤ포츠）
• 燻肴 (ibusa)

Products and services

• STONE ROLLS (ストンロルズ) Canned seafood brand born at the renowned fishing port of Ishinomaki. Production is based at STI Miyagi factory in Miyagi Prefecture, contributing to the Tohoku region's revitalization. Products include Kinka Mackerel Water Pack, Mackerel Harissa, Mackerel in Olive Oil, Mackerel Curry, and Mackerel with Mentaiko, sold through convenience stores and retail outlets.
• FIRE PORTS (ファイヤポーツ)

Quantifiable outcome

• 12-day chilled shelf life (3x conventional 2-day limit) via gas-replacement packaging, reducing sales loss and food waste
• +2 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Ajino Hama Group (味の浜藤)coreStrategic or Co-development Partner · 1 April 2024Acquired 100% of Hamashin Corporation (浜信), parent of Ajino Hama Group (味的浜藤, established 1925), in April 2024. Ajino Hama operates retail locations in Tokyo Station, Shinagawa Station and department stores, selling premium bento and seafood products with ~40 billion yen annual revenue. Planned as global brand vehicle for overseas expansion. STI Foods Holdings provides technology, procurement, and manufacturing capabilities; Ajino Hama contributes 100-year pickled seafood expertise.
• Seven-Eleven JapancoreStrategic or Co-development PartnerPrimary customer channel (~80% of revenue). Multi-decade partnership with ~20,000 Seven-Eleven stores nationwide. STI Foods Holdings develops products in direct collaboration with Seven-Eleven's product division, proposing new menu items based on POS data and consumer trends. Seven-Eleven's expanding deli sections (deli sales index grew from 100 in 2016 to 140 by 2019) drive STI Foods' growth.
• STI AMERICA Inc.coreStrategic or Co-development PartnerNorth American subsidiary responsible for seafood ingredient procurement from North America, including quality inspection and verification of Chilean farmed seafood.
• STI CHILE S.A.coreStrategic or Co-development PartnerNon-consolidated Chilean subsidiary responsible for quality inspection of Chilean farmed seafood ingredients. Verifies aquaculture water quality, farming conditions, and antibiotic residue analysis certificates for traceability.
• Taiwan Seven-Eleven (台湾セブン-イレブン)minorStrategic or Co-development PartnerInternational Seven-Eleven partnership started July 2023. STI Foods Holdings developing products matched to local Taiwanese taste preferences in collaboration with local product division. Regional expansion initiative in Asia.
• 7-Eleven, Inc. (International)minorStrategic or Co-development PartnerNorth American 7-Eleven franchise network (~9,800 stores). Planned expansion through North American 7-Eleven chain as pathway to global market entry. Target: West Coast launch 2025, East Coast factory within 10 years.

Scale indicators8 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Nichirei Corporation: Major Japanese frozen food company with extensive prepared food and logistics portfolio. Overlaps with STI's frozen prepared seafood categories but serves a broader portfolio across meat, vegetables, and prepared meals.
• Ajinomoto Co., Inc. Global Japanese food manufacturer with extensive frozen foods and processed foods portfolio. Comparable in scale and convenience store channel presence but focused on broader processed meals rather than seafood-specific.
• NH Foods (Nippon Ham): Major Japanese meat and processed food manufacturer with direct convenience store supply chain relationships. Comparable B2B retail-channel model but specialized in protein prepared foods beyond seafood.
• Maruha Nichiro Logistics & Cold Storage peers in Japan: Japanese frozen food manufacturer producing prepared rice, noodles, and seafood meals for retail and convenience channels. Comparable in convenience store supply and frozen prepared food capabilities.

Direct peers

• Kibun Foods (Kibun Shokuhin): Japanese seafood processor specializing in surimi-based products, fish jelly, and prepared seafood. Comparable as a Japan-based seafood processor with B2B and B2C seafood prepared foods channels.
• Nissui (Nippon Suisan Kaisha): Major Japanese seafood and food company with marine product, food, and fine chemical divisions. Overlaps with STI in processed seafood, frozen prepared foods, and fish-based ingredients for Japanese retail and food service.
• Kyokuyo Co., Ltd. Japanese seafood company with marine products, processed foods, and refrigerated/frozen prepared fish dishes. Direct overlap with STI in prepared fish and seafood ingredients for Japanese retail channels.
• Maruha Nichiro: Japan's largest seafood company, operating across marine resources, processed foods, and frozen foods. Directly competes with STI in seafood prepared foods and ingredient supply for Japanese convenience stores and retail.

Regional players

• Thai Union Group: Global seafood processor with canned and frozen seafood products (Chicken of the Sea, John West brands). Comparable as a large-scale seafood prepared foods manufacturer, but primarily serving global markets outside Japan.

Emerging players

• Hoko Fishing Co., Ltd. Japanese seafood company with branded processed seafood products (Hoko brand) including ready-to-eat fish dishes. Comparable in Japanese seafood prepared foods market with focus on smoked and processed fish.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/shin-tokyo-international-inc-

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries10 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 STI Foods Holdings