Ahresty

What Ahresty does

Ahresty Corporation (株式会社アーレスティ) is a Japanese aluminum die casting manufacturer founded in 1938 and listed on the Tokyo Stock Exchange under ticker 5852. The company operates two principal business segments: aluminum die casting for automotive applications and free access floor systems for clean rooms, computer rooms, and offices. In automotive die casting, Ahresty produces body structural components, engine parts, transmission cases, and EV-specific parts such as battery brackets and ESU cases, using proprietary technologies including HiGF high-vacuum die casting, laser heat treatment, SWAD spot-weld-capable casting, FSW bonding, and FS high-pressure forming. Customers include Toyota, Honda, Nissan, Subaru, Mitsubishi, Daihatsu, Yanmar, and Hitachi Automotive Systems.

Ahresty's manufacturing footprint spans 9 domestic facilities in Japan and 8 overseas bases across the United States, Mexico, two Chinese cities (Guangzhou, Hefei), and Thailand (Ayutthaya), with wholly-owned subsidiaries such as Ahresty Wilmington Corporation, Ahresty Mexicana, and Thai Ahresty Die. The Tochigi plant operates 32 casting machines ranging from 800t to 4,000t clamping force, and the Kumagaya factory produces 3,000 tons of recycled aluminum ingots per month — over 90% of Ahresty products use recycled aluminum requiring only 3% of the energy of virgin aluminum. A co-development partnership with G-TEKT Corporation targets multi-material rear frame modules combining pressed steel and die cast aluminum parts.

For fiscal year ending March 2025, Ahresty reported consolidated revenue of 162.9 billion yen and standalone revenue of 76.6 billion yen, with 5,259 consolidated employees (3,545 overseas, 846 standalone in Japan). The company holds IATF 16949 automotive quality certification at key plants, ISO 9001, ISO 14001:2015 across 12 sites, and has been recognized by Japan's Ministry of Health, Labour and Welfare for multi-million-hour accident-free records. The free access floor business includes Moba Floor mobile raised flooring with leading clean room market share, distributed through Kanto and Kansai sales offices. Go-to-market is direct enterprise field sales to automotive OEMs and construction/facility customers, with no public consumer pricing.

Name

Ahresty

Legal name

株式会社アーレスティ

Website

https://ahresty.co.jp

Company type

Public

Founded year

1938

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Ahresty is a Japanese aluminum die casting manufacturer (TSE: 5852) producing automotive body, engine, and EV components for Toyota, Honda, Nissan, and Subaru via proprietary HiGF and multi-material joining technologies, with a global footprint across Japan, the US, Mexico, China, and Thailand and a secondary free access floor business.

Ownership category

akta.pro rank

Product category

Automotive Aluminum Die Casting

NAICS

Nonferrous Metal Die-Casting Foundries (331523), Secondary Smelting and Alloying of Aluminum (331314)

SIC

Sheet Metal Work (3444)

akta.pro primary industry

Aluminum Value-Added Components (Automotive, Aerospace, Packaging, Building Systems) (IMAKACAM)

akta.pro secondary industries

Aluminum Fabrication & Finishing (Machining, Anodizing, Coating) (IMAKACAI), Aluminum Casting & Ingot/Billet/Slab Production (IMAKACAE)

Keywords

• Aluminum die casting
• Automotive components
• Raised floor systems
• Aluminum recycling
• Die casting molds

Headquarters

HQ city

Toyohashi

HQ country

Japan

HQ region

Asia

Offices14 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Die Casting Products: Aluminum die casting components for automotive manufacturers including body structural parts, engine components, and EV parts such as battery brackets, ESU cases, shock towers, and subframes. Manufacturing from design through casting, machining to assembly performed in-house.
2. Aluminum Alloy Ingots: Recycled aluminum alloy ingots produced at Kumagaya factory with monthly capacity of 3,000 tons. Supplied for die casting, casting, and light pressing applications.
3. Raised Floor Systems: Free access floor systems (raised floors) for clean rooms, computer rooms, air conditioning applications, and general office use. Includes CAD data download services and product customization.
4. Die Casting Equipment and Peripherals: Manufacturing equipment for die casting products including peripheral devices such as jet cool systems, and design/development of machines for die casting processing
5. Die Casting Molds: Design and development of molds for die casting products, manufactured at Ahresty Dymold Hamamatsu subsidiary

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Ahresty manufactures and sells aluminum die-cast automotive components (shock towers, subframes, ESU cases, battery brackets and multi-material body modules) using proprietary HiGF high-vacuum die casting and complementary joining technologies. It also produces free access (raised) floor systems for clean rooms, computer rooms, air conditioning and offices, runs an aluminum recycling operation producing alloy ingots, designs and manufactures die casting molds, and sells die casting peripheral equipment.

Product overview

Ahresty is a Japanese manufacturing company operating two main business segments: (1) Aluminum Die Casting for automotive applications, offering die cast products and proprietary manufacturing technologies including HiGF high-vacuum casting, laser heat treatment, SWAD spot-welding capable die casting, FSW bonding, and FS forming methods; and (2) Free Access Floor Systems for clean rooms, computer rooms, air conditioning, and offices, including mobile floor products. The company also operates an aluminum recycling facility producing alloy ingots from scrap. Die casting products serve automotive manufacturers with components such as shock towers, subframes, ESU cases, and battery brackets, supporting vehicle lightweighting and electrification.

Differentiator

Problem solved

Functional benefit

Brands

• アーレスティ・プロダクション・ウェイ: Ahresty's proprietary production methodology integrating manufacturing excellence across global operations.

Products and services

• Aluminum Die Casting Products for Automotive Aluminum die-cast components for automotive OEMs and Tier 1 suppliers, including body structural parts, engine and transmission cases, shock towers, subframes, battery brackets, and EV-specific ESU cases. Manufactured end-to-end in-house from design and mold making through casting, machining and assembly, using proprietary HiGF high-vacuum die casting and complementary multi-material joining technologies.
• Free Access Floor Systems (Raised Floors) Raised access floor systems for clean rooms, computer rooms, air conditioning floor applications and general office environments, with CAD data download and product catalog services available. Marketed with the No. 1 share in the clean room raised floor market in Japan.
• Aluminum Alloy Ingots (Recycled) Recycled aluminum alloy ingots produced at Ahresty's Kumagaya factory with capacity of 3,000 tons per month, supplied for downstream die casting, casting and light pressing applications. Energy consumption is about 3% of virgin aluminum production from bauxite.
• Moba Floor (Mobile Raised Floor System) Mobile / portable raised access floor system that allows flexible reconfiguration of office layouts, sold as part of the Free Access Floor line for clean rooms and offices.
• Die Casting Molds Design and manufacturing of dies and molds used for Ahresty's aluminum die casting operations, produced at the Ahresty Dymold Hamamatsu subsidiary.
• Die Casting Equipment and Peripherals Die casting processing machines and peripheral devices (e.g., jet cool systems) designed, developed and supplied by Ahresty Techno Service for use in aluminum die casting operations.

Quantifiable outcome

• Recycled aluminum requires only 3% of energy compared to virgin aluminum from bauxite, reducing CO2 emissions significantly
• +4 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• G-TEKT CORPORATIONcoreStrategic or Co-development PartnerCo-development partner for Multi-Material Rear Frame Module Concept combining press parts and die casting parts for automotive body structural optimization. G-TEKT provides press components while Ahresty provides die casting components for integrated body structure solutions.

Scale indicators13 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Aisin Corporation: Toyota-affiliated major Tier 1 automotive component supplier producing aluminum die cast parts among its broader powertrain and chassis portfolio. Overlapping automotive customer base and die casting capability though much larger and more diversified.
• Georg Fischer AG: Swiss industrial group with significant iron, steel, and aluminum casting operations serving automotive and industrial customers. Comparable casting capabilities though broader and more diversified than Ahresty.

Direct peers

• Endurance Technologies: Indian automotive component manufacturer specializing in aluminum die casting and suspension components for global OEMs including EV programs. Comparable product mix in aluminum die casting with strong automotive OEM exposure.
• Shiloh Industries: US-based manufacturer of lightweight automotive components using aluminum and magnesium die casting and acoustic technologies. Direct peer in lightweighting components for North American OEMs.
• Nemak: Mexican-headquartered global leader in aluminum casting for automotive powertrain, structural, and EV components. Directly comparable in product line (engine blocks, transmission housings, structural castings) and customer overlap.
• Ryobi Limited: Japanese die casting manufacturer serving global automotive OEMs with aluminum and zinc die cast components. Closest direct peer given overlapping product portfolio, automotive customer base, and Japanese manufacturing footprint.
• Form Technologies / Dynacast: Global precision die casting manufacturer focused on non-ferrous metal components for automotive, industrial, and consumer markets. Directly comparable in multi-cavity die casting technology and customer base.
• Sundaram-Clayton Group: Indian aluminum die casting company producing automotive components for global OEMs. Comparable in non-ferrous die casting technology and automotive customer base, though smaller and more regional.

Regional players

• IBSCO Industries: Middle East-based aluminum die casting company serving regional automotive and industrial customers. Comparable die casting process technology though operating in a different geographic market from Ahresty.

Others

• Bühler AG: Swiss manufacturer of die casting equipment and complete die casting cells. Ahresty produces die casting equipment and peripherals internally and could partner with or compete against Bühler in equipment supply to other die casters.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/ahresty_pr
• LinkedInlinkedin.com/company/ahresty-corporation

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries9 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 Ahresty