What Corona does

Corona Corporation (株式会社コロナ, TYO:5909) is a Japan-based, Niigata-headquartered manufacturer of residential heating, air conditioning, and home appliances founded in 1935. The company's product portfolio spans room and window air conditioners (under the ReLaLa brand), clothes-drying dehumidifiers, a full range of combustion and electric heaters (oil fan heaters, Noil Heat oil-less units, Core Heat carbon heaters, FF oil heaters, oil stoves), and hot-water and bath systems including the EcoCute heat-pump water heater, NeoCute, oil water heaters, and geothermal hybrid systems. Additional categories include wellness/beauty appliances and the OUTFIELD outdoor-lifestyle line featuring the BREEZE BOX portable air conditioner.

Corona monetizes primarily through unit sales of these long-life consumer durables through retail and dealer channels in Japan, with revenue tied to seasonal heating demand (winter) and cooling/hot-water demand (summer). Proprietary in-house technologies — FIXAL combustion design, the D.H.E. (Direct Heat Exchange) flameless system, and Aqua Drop Wash dehumidifier cleaning — sit at the core of its product differentiation. The company operates a 14-office nationwide sales and service network and is increasingly layering connectivity through the Corona Comfort Home app. Revenue is ¥85,338 million for FY2025 (year ended March 2026), with operating income of ¥852 million and net income of ¥991 million; revenue grew +0.1% year-on-year while operating income declined -36.6%, reflecting margin compression.

The business model is domestic-Japan consumer-durable by design: low customer concentration at the household level, but material exposure to Japanese heating-season demand, input-cost inflation (necessitating the July 2026 price-adjustment announcement), and the slow-cycle replacement dynamics of installed heating and water-heating equipment. Strategic activity in 2025-2026 has centered on product refreshes (AGRATIO 2026 model), brand extensions (OUTFIELD, Licca co-branded dehumidifier), and a 90th-anniversary positioning push, rather than geographic or channel expansion.

Name

Corona

Legal name

株式会社コロナ

Website

https://corona.co.jp

Company type

Private

Founded year

1935

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Corona Corporation is a 1935-founded Japanese manufacturer of residential heating, air conditioning, and home appliances (TYO:5909), serving Japanese households through retail and dealers with brands including ReLaLa air conditioners, EcoCute heat-pump water heaters, and the OUTFIELD outdoor line.

Ownership category

akta.pro rank

Product category

Residential Heating & Cooling Equipment

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Major Household Appliance Manufacturing (33522), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Household Appliances (3630), Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430)

akta.pro primary industry

HVAC & Air Treatment Appliance Retail (Air Conditioners, Heat Pumps, Air Purifiers/Dehumidifiers) (CRACACAE)

akta.pro secondary industries

Water Heating & Treatment Appliance Retail (Water Heaters, Water Softeners, Filtration Systems) (CRACACAF), HVAC, Water Heaters & Indoor Air Quality Distribution (CRAOAFAJ)

Keywords

• Residential heating equipment
• Home air conditioning
• Heat pump water heaters
• Dehumidification appliances
• Oil fan heaters

Headquarters

HQ city

Sanjo

HQ country

Japan

HQ region

Asia

Offices9 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Product Sales: Corona generates revenue primarily from manufacturing and selling heating appliances (oil heaters, fan heaters, electric heaters), air conditioning products (room air conditioners, window air conditioners), home equipment (eco-cute heat pump water heaters, water heating systems), and dehumidifying/drying equipment. Products are sold through retail stores, dealers, and direct online channels.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Corona manufactures and sells residential climate control products in Japan, including petroleum fan heaters, room and window air conditioners, heat pump water heaters (EcoCute), clothes-drying and general dehumidifiers, oil-less electric heaters, and oil water heaters. The company sells primarily through home appliance retail chains, authorized dealers/installers, and its direct-to-consumer Corona Store online platform, supported by a nationwide network of sales offices and after-sales service centers.

Product overview

株式会社コロナ (Corona) is a Japanese manufacturer of residential climate control and comfort products. The company operates as a comprehensive home comfort solutions provider with products organized into four main categories: 空調・家電機器 (Air Conditioning & Home Appliances), 暖房機器 (Heating Equipment), 住宅設備機器 (Housing Equipment), and 美容・健康機器 (Beauty & Health Equipment). The core product portfolio centers on air conditioning systems (ルームエアコン under the ReLaLa brand, ウインドエアコン), dehumidifiers (衣類乾燥除湿機, 除湿機), and various heating solutions including 石油ファンヒーター (oil fan heaters), ノイルヒート (oil-less electric heaters), 石油ストーブ (oil stoves), and FF式石油暖房機 (forced draft oil heaters). The housing equipment division offers エコキュート (heat pump water heaters), ネオキュート, 石油給湯機 (oil water heaters), 電気温水器, エコ暖シリーズ, ジオシスシリーズ (geothermal hybrid), and related systems. The beauty and health segment includes ナノリフレ, ナノフィール, and ナノリッチ products. Corona also operates the OUTFIELD outdoor lifestyle sub-brand. All products are marketed primarily in Japan through home appliance retailers and housing construction channels, with comprehensive after-sales service support including dedicated service centers and online repair request systems.

Differentiator

Problem solved

Functional benefit

Brands

• CORONA: Corporate brand name and main brand for heating, air conditioning, and housing equipment products. Brand slogan: つぎの快適をつくろう。 (Creating the next comfort).
• ReLaLa (リララ)
• ノイルヒート (NOIL HEAT)
• AGRATIO
• OUTFIELD
• おひさまエコキュート
• ネオキュート

Products and services

• Room Air Conditioners (ルームエアコン, ReLaLa brand) Residential split-system air conditioners under the ReLaLa brand, available in multiple series (SP, Z, N, W, B, etc.) targeting different market segments. Features include self-cleaning functions, energy efficiency, and smart connectivity via the dedicated Corona Comfort Home app.
• Window Air Conditioners (ウインドエアコン) Window-mounted air conditioning units installable without professional installation. Available in cooling-only and heating/cooling models for residential use.
• Clothes Drying Dehumidifiers (衣類乾燥除湿機) Dehumidifiers specifically designed for drying clothes indoors, available in multiple series (CDSC, WH, H, S, P) with varying capacities. Features include dual louvers, heat exchanger cleaning, and circulator linkage capabilities.
• Dehumidifiers (除湿機) General purpose dehumidifiers for moisture control in residential spaces, complementing the clothes drying dehumidifier line.
• Humidifiers (加湿器) Air humidifiers in UF-HV and UF-H series, featuring various capacities and maintenance functions for residential comfort.
• Oil Fan Heaters (石油ファンヒーター) Forced-air oil heaters in multiple series (WZ, VX, SR, S32, G32, G, VG, ST, mini, CP) with heating capacities for 7 to 19 tatami mat rooms. Feature low power consumption, rapid ignition, and deodorizing technologies.
• Noil Heat Oil-less Electric Heaters (ノイルヒート) Electric radiant/convection heaters using Corona's proprietary high-contact FIXAL heater technology. Available in 15 and 12 size models with eco mode, providing room heating without burning oil.
• Core Heat Electric Radiant Heaters (コアヒート) Electric radiant heaters using carbon heating elements, designed for spot heating applications in residential spaces.
• Oil Stoves (石油ストーブ) Portable oil stoves in various types including reflective and convection models, designed for direct heating applications, plus hearth-style cooking stoves in the Macoro series.
• FF Oil Heaters (FF式石油暖房機, AGRATIO brand) Forced draft oil heating systems with closed combustion chambers, providing clean and safe heating without consuming room air. Targeted especially at cold climate regions in Japan.
• EcoCute Heat Pump Water Heaters (エコキュート) Heat pump water heating systems using air-to-water technology for energy-efficient residential hot water supply. Available in multiple series with capacities from 300L to 460L; some models include microbubble bath units.
• Oil Water Heaters (石油給湯機, Ecofeel brand) High-efficiency oil-fired water heaters under the Ecofeel brand, available in multiple series (EF, EG, NE-H, NE, AG, SA, NX-H, NX) with various features including bath support functions and different tank configurations.
• NeoCute Heat Pump Water Heaters (ネオキュート) Heat pump water heater product line variant under the NeoCute brand, complementing the EcoCute range.
• Geothermal Hybrid Heating Systems (Geosis Series / ジオシスシリーズ) Geothermal hybrid heating systems combining heat pump technology with geothermal energy for efficient residential home heating.
• Eco Dan Hydronic Heating Systems (エコ暖シリーズ) Hydronic heating systems for residential use, providing efficient radiant floor and forced air heating through warm water circulation.
• OUTFIELD Portable Air Conditioners (BREEZE BOX, NIGHT BLACK EDITION) Outdoor lifestyle brand featuring portable air conditioners like BREEZE BOX with D.H.E. system cooling technology, marketed for outdoor and adventure scenarios such as camping.
• Nano Refre Beauty Device (ナノリフレ) Beauty and health devices using nano-technology for residential skin care and wellness applications.
• Nano Rich Sauna Products (ナノリッチ) Home and business-use sauna products incorporating nano-technology for enhanced wellness experiences.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators6 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Noritz Corporation: Japanese specialist in residential gas water heaters, hot-water heating systems, and EcoCute heat pump water heaters. Direct overlap with Corona in residential water-heating category.
• Rinnai Corporation: Leading Japanese manufacturer of gas water heaters, bath heating systems, and gas heating appliances. Directly comparable to Corona in residential water heating and EcoCute segments.
• Paloma Co., Ltd. Japanese gas appliance specialist including gas water heaters, gas heating, and EcoCute systems. Direct peer in residential water-heating and combustion-based heating.
• Takagi Co., Ltd. Japanese specialist in residential gas water heaters and EcoCute heat pump water heaters. Direct competitor in the water-heating equipment category where Corona also operates.
• Fujitsu General: Japanese air conditioner manufacturer (now majority-owned by Paloma Rheem) with strong domestic room AC position under the nocria brand. Closely comparable to Corona in split-system and window AC categories.
• Toyotomi Co., Ltd. Japan-focused manufacturer of kerosene/oil fan heaters, oil stoves, and related combustion-based heating appliances. Closest direct competitor to Corona's petroleum heating line including oil fan heaters and FF oil heaters.

Broad incumbents

• Panasonic: Diversified Japanese electronics/appliance maker with strong positions in room AC, EcoCute heat pump water heaters, and dehumidifiers. Overlaps with Corona across AC and water-heating product lines through retail and housing channels.
• Hitachi Global Life Solutions: Hitachi group entity manufacturing residential AC (Kala/SHARP/Hitachi brands), heat pump water heaters, and home appliances. Competes with Corona across AC, dehumidifiers, and water heating in Japan.
• Daikin Industries: Global leader in air conditioning and HVAC with major Japan domestic AC and heat-pump business. Direct overlap with Corona in room AC, heat pump water heaters (EcoCute), and residential heating/cooling; much larger scale and broader product portfolio.
• Mitsubishi Electric: Major Japanese manufacturer of room air conditioners, heat-pump water heaters, and residential climate-control systems under the Mitsubishi and Kirigamine brands. Competes head-to-head with Corona in AC and EcoCute.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/CoronaCMChannel
• Facebookfacebook.com/corona.co.jp
• Instagraminstagram.com/corona.co.official/?hl=ja
• LinkedInlinkedin.com/company/corona-corp-5909-

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Corona