菱熱工業（株）

What 菱熱工業（株） does

Ryonetsu Kogyo Co., Ltd. (菱熱工業株式会社) is a privately-held Japanese cold/thermal engineering firm founded circa 1975, headquartered in Ota-ku, Tokyo, with operating heritage extending to 1966. The company operates as an integrated cold/thermal engineering contractor spanning equipment design, installation, manufacturing, and maintenance for food processing facilities, HVAC systems, and environmental applications. It holds a wholly-owned subsidiary (Ryonetsu Service Co., Ltd.) and operates a fully-enclosed plant factory division (Vitamin Farm) in Fukui, with approximately 100 technical staff across multiple disciplines.

The product portfolio spans five operational categories. Food factory equipment includes proprietary pressure-differential cooling systems (差圧冷却システム), chilled water chillers (SuperIce, DirectOne, Chiller2, Dynamic ice thermal storage), chilled conveyors for in-line temperature control, boil-cool sterilization tanks, a rice cooking line ("Honmakaina"), ultrasonic cleaners, and powder filters. HVAC offerings include an iPhone-based differential pressure checker (差圧チェッカー), ceiling dehumidifiers, AI Cycle ventilation optimization, and pest AI management. Environmental systems include GrEenM2 (CO2-based HVAC/lighting controller) and RISE ventilation optimization (documented 30-50%+ electricity reduction in kitchen exhaust). A new AI product category launched 2025-2026 includes Tensai Shisetsukanri (facility anomaly detection) and Handwashing AI (computer-vision hygiene compliance). Proprietary diagnostic tools (差圧チェッカー, サーモグラフィ, 温湿度ロガー) underpin the company's condensation-countermeasure consulting service, offered nationally.

Revenue is generated through professional services (design, installation, and maintenance contracts for heating, freezing, HVAC, and sanitary equipment) and hardware sales (food production machinery, environmental products, LED lighting, plant factory produce). The company operates an EC storefront (Ryonetsu Shop) selling smoking booths and accessories, and an online quotation service (Otsunagi Honpo). Pricing is quote-based across all major lines; only the condensation diagnosis service is publicly priced (basic plan ~¥100,000, work-plan option ¥80,000). Customer base spans Japanese food factories (bento, deli, bread, noodle operations), restaurants, hotels, schools/hospitals, warehouses, and amusement facilities, with documented projects at Yokohama Food Factory, Kawagoe Souzai Factory, Osaka Bakery Factory, and a JAXA-adopted waste disposal system.

Name

菱熱工業（株）

Legal name

菱熱工業株式会社

Website

https://ryonetsu.com

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

1–10 employees

Short description

Ryonetsu Kogyo is a privately-held Japanese cold/thermal engineering firm providing integrated design, manufacturing, and installation of food factory equipment, HVAC systems, energy-saving solutions, and AI facility management products, serving primarily Japanese food processors, restaurants, and facilities.

Ownership category

akta.pro rank

Product category

Industrial Refrigeration and Food Factory Engineering Services

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Refrigeration & Service Industry Machinery (3580), Heating Equipment, Except Electric & Warm Air Furnaces (3433)

akta.pro primary industry

HVAC Equipment (Heating, Cooling & Air Handling) (IMAHAKAB)

akta.pro secondary industries

Cold Chain & Temperature-Controlled Storage Equipment (IMAHAKAJ), HVAC Installation, Service & Repair (IMAIABAA), Building Thermal Controls & Building Management Systems (HVAC BMS) (IMAHAKAK)

Keywords

• Cold thermal engineering
• Food factory cooling systems
• HVAC equipment manufacturing
• Condensation prevention technology
• Energy-saving ventilation systems

Headquarters

HQ city

東京（不明）

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. 冷熱エンジニアリング・設備設計施工: 冷熱、冷凍、空調、給排水・衛生設備等の設計・施工・メンテナンスを一貫提供。冷熱、冷凍、空調設備の設計・施工からメンテナンスまで総合的に提供
2. 食品生産機器・環境機器販売: 差圧冷却システム、チルドコンベア、冷水チラー、結露対策製品、空調服、LED照明、分煙装置、生ゴミ処理機などの製造販売
3. 結露診断サービス: 基本プラン（最大3時間調査・報告書作成：約10万円）、オプショ.plan（工事計画8万円）、温湿度ロガー貸与等服务
4. EC販売（菱熱ショップ）: 分煙ボックス・部品等のEC販売。銀行振込とクレジットカード対応
5. セントラルキッチン建設・入札支援: 食品工場（セントラルキッチン）建設の入札活用によるコストダウン提案と施工監理

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

菱熱工業 is a comprehensive cold/thermal engineering company that designs, manufactures, installs, and maintains cooling, heating, HVAC, ventilation, condensation prevention, and energy-saving equipment—primarily for food factories, central kitchens, and other industrial/commercial facilities in Japan. The company integrates three capabilities under one roof: production engineering (design-build-maintain), proprietary equipment manufacturing, and general construction contracting.

Product overview

菱熱工業（株）は冷熱エンジニアリング総合企業として、食品工場・セントラルキッチン、空調・換気、環境、省エネルギー、植物工場の5つの領域で多様なproducts展開しています。主力productsは食品冷却・温度管理システム（差圧冷却システム、冷水装置・チラー群、チルドコンベア、ボイルクール槽）と、空調・結露対策products（差圧チェッカー、ドライ・イット除湿機、GrEenM2、RISEシステム、AIサイクル）を中核に、環境products（組立式分煙装置AS-Rシリーズ、分煙ブースES-R1、防虫AI管理システム）、AIproducts（天才施設管理者、手洗いAI、おつなぎ本舗）、そして粉体フィルタ（コナトレール）、ボックススチーマー、炊飯ライン「ほんまかいな」などがあります。食品工場の設計・施工から機器製造・販売・メンテナンスまで手がけ、HACCP対応やSDGs対応製品もラインのばしています。

Differentiator

Problem solved

Functional benefit

Brands

• ビタミンファーム (Vitamin Farm): A plant factory division operated by the company, producing and selling vegetables grown in a controlled environment.

Products and services

• Differential Pressure Cooling System (差圧冷却システム) Differential pressure cooling system that cools fried and grilled cooked foods while preserving flavor and suppressing moisture dispersion, keeping products tender. Targeted at food factories producing cooked foods.
• Instant Chilled Water Equipment Lineup (瞬間冷水装置: SuperIce / DirectOne / Chiller2 / Dynamic Ice Thermal Storage) Instant chilled water equipment line providing optimally efficient chilled water supply based on volume, supply temperature range, and operating hours. Includes the LCC low-cost chiller offering 3°C chilled water at half the market price. Used in food factories and industrial processes.
• Chilled Conveyor (チルドコンベア) Food preservation belt conveyor enabling chilled food topping operations in standard air-conditioned packaging rooms without renovation work. Targeted at food factories needing to keep products at controlled low temperatures during production lines.
• Boil-Cool Tank (ボイルクール槽) Batch-type low-temperature sterilization tank and chilled water chiller system package designed for premium and long-life ready meals, integrating heating sterilization and cooling in one unit.
• Rice Cooking Line "Honma Kaiona" (炊飯ライン「ほんまかいな」) Rice cooking line using bubble washing and far-infrared cooking, reducing gas consumption by approximately half compared to conventional continuous cookers. Targeted at food factories producing cooked rice.
• Box Steamer (ボックススチーマー) Steaming and heating cooking appliance developed for food factories, also used for secondary sterilization applications.
• Large Standard Ultrasonic Cleaner (超音波洗浄機) Large standard ultrasonic cleaner using 26kHz frequency optimal for food containers, cooking utensils, and food manufacturing equipment. Capable of cleaning complex shapes and fine dirt unreachable by hand.
• Differential Pressure Checker (差圧チェッカー) iPhone/iPad-based differential pressure checker that measures and judges air pressure balance in operating factories, with improvement recommendations but no need for special measuring equipment.
• Ceiling-mounted Compact Dehumidifier "Dry-It" (ドライ・イット) Ceiling-mounted compact dehumidifier enabling small-start with one unit at low cost, designed for industrial dehumidification in food factories.
• GrEenM2 Energy-saving System Energy-saving system measuring temperature and CO2 concentration for air conditioning, ventilation fans, and lighting in stores and cinemas, automatically executing equipment on/off control.
• Assembled Smoking Separation Devices (組立式分煙装置 AS-R1 / AS-R2 / AS-R3) Assembled smoking separation devices in circulation, exhaust connection, and high-performance filter circulation types. Enables low-cost smoking separation in narrow spaces.
• Smoking Booth ES-R1 (分煙ブース) Compact smoking room compliant with fire prevention regulations, requiring no major renovation work. Easily installed in existing facilities. External dimensions 940W x 940D x 2300H mm, approximately 90kg. Targeted at hospitality venues.
• Pest AI Management System (防虫ＡＩ管理システム) AI-powered pest management system using dedicated insect traps combined with the product to offer low-cost pest control, reducing costs versus specialist outsourcing.
• AI-powered Facility Manager "Tensai Shisetsu Kanrisha" (天才施設管理者) AI-powered facility management system that identifies issues in the field and implements solutions using AI to analyze and detect anomalies in facility operations.
• Handwashing AI (手洗いAI) AI-powered handwashing management system automating education, recording, and auditing of handwashing through AI image recognition via iPhone camera.
• Online Quotation Service "Otsunagi Honpo" (おつなぎ本舗) Online quotation service enabling customers to request estimates and consult digitally for the company's product lineup.
• AI Cycle (AIサイクル) Window-type ventilation improvement unit using AI to automatically optimize ventilation settings for schools, universities, nursing care facilities, hospitals, and medical settings.
• Powder-Specific Ultra-Long-Life Filter "Konatoreru" (コナトレール) Powder-specific ultra-long-life filter protecting food factory air conditioners from powder dust, solving clogging, cleaning cost, and hygiene issues with one unit.
• Air-Rabbit Microorganism Management System (微生物管理 Air-Rabbit) Microorganism management system designed to control and suppress microbial growth in facility environments.
• Condensation Diagnosis Service (結露診断サービス) Specialized condensation diagnosis service using Ryonetsu's proprietary differential pressure checker, thermohygrograph, and personal expertise. Tiered plans include a basic plan (up to 3 hours on-site survey during weekdays, plus report, approx. 100,000 yen + transportation); an option plan for construction drawings (80,000 yen added); an option for hygrometer rental (from 5,000 yen); and a discount for repeat diagnosis (40,000 yen). Service is available nationally.
• Central Kitchen Construction Cost-Down via Tender (セントラルキッチン建設 入札活用) Cost-down proposal and construction supervision for food factory / central kitchen construction projects through tender utilization, working room improvements, and remodeling. Targeted at food manufacturers investing in centralized kitchen facilities.
• Cold/Thermal Engineering Design-Construction-Maintenance Services (冷熱エンジニアリング設計施工メンテナンス) Integrated design, construction, and maintenance services for cooling, freezing, air conditioning, water supply, and sanitary equipment. Provided to food factories, restaurants, hotels, schools, hospitals, and industrial facilities across Japan.

Quantifiable outcome

• 厨房換気設備の電力を30〜50%以上削減（RISEシステム）
• +2 more outcomes

Named customers4 records

Segments7 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature8 records

Partnerships

One partnership is on record.

• JAXAminorStrategic or Co-development Partner消滅型生ごみ処理機がJAXAオープンイノベーションに採択された。生ゴミ処理技術における宇宙関連ベンチャーの一つとして認知されている。

Scale indicators4 records

Expansion highlights5 records

Broad incumbents

• 日立グローバルライフソリューションズ (Hitachi Global Life Solutions): Hitachi's appliance/HVAC division offering commercial air-conditioning, refrigeration, and building solutions. Overlaps in HVAC and cold-chain equipment but as part of a much broader Hitachi portfolio.
• 三菱電機 (Mitsubishi Electric): Major Japanese conglomerate with a substantial commercial/industrial HVAC and building systems division. Overlaps in building thermal controls (BMS), chillers, and HVAC equipment but operates as a broad-line incumbent rather than food-factory specialist.
• 日本電産 (Nidec) / Sankyo Tateyama / パナソニック (Panasonic): Large Japanese HVAC and building systems incumbents with broad commercial and industrial product lines. Compete in the wider Japanese HVAC market that Ryonetsu addresses, but at substantially larger scale across many segments beyond food factories.
• ダイキン工業 (Daikin Industries): Global HVAC market leader with broad commercial/industrial refrigeration and chiller lines. Competes broadly in the same Japanese commercial HVAC and chiller market but at vastly larger scale and without Ryonetsu's food-factory specialization.

Direct peers

• ホシザキ電機 (Hoshizaki Electric): Leading Japanese manufacturer of commercial kitchen and food-service equipment including ice makers, refrigeration, and dishwashers. Comparable in target customer (food factories/restaurants) and overlap in chilled-water and cold-storage product categories.
• 福島工業 (Fukushima Industries / FRESTEC): Manufacturer of commercial refrigeration and food factory equipment (including HACCP-related products). Directly comparable as a Japanese mid-cap serving similar food-factory and food-service customers with cooling and sterilization equipment.
• 前川製作所 (Mayekawa Manufacturing): Japanese industrial refrigeration and food processing equipment manufacturer. Both companies target food factories with integrated cooling, freezing, and HVAC solutions, and both compete in Japan's niche industrial cold-chain equipment market.
• 中外炉工業 (Chugai Ro): Japanese manufacturer of industrial furnaces, ovens, and thermal processing equipment. Overlaps with Ryonetsu's Box Steamer, boil-cool sterilization, and rice-cooking thermal-processing product lines in industrial food thermal equipment.
• 大気社 (Taikisha): Japanese industrial HVAC and plant engineering firm with strong food factory and industrial process ventilation presence. Comparable as a design-build HVAC engineering firm with similar one-stop project model and food-industry focus.

Regional players

• マルハニチロ物流 (Nichirei Logistics / Logistics arm): Major Japanese cold-chain logistics operator with extensive refrigerated warehousing. Adjacent in cold-chain and temperature-controlled storage equipment demand, but operates as a logistics user/owner rather than an equipment manufacturer.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/ryonetsu
• YouTubeyoutube.com/channel/UCLv6ZxBSCGLQfcvuPJIYEWA
• Facebookfacebook.com/ryonetsu
• LinkedInlinkedin.com/company/%E8%8F%B1%E7%86%B1%E5%B7%A5%E6%A5%AD%EF%BC%88%E6%A0%AA%EF%BC%89

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

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 菱熱工業（株）