Advanex

What Advanex does

Advanex Inc. (株式会社アドバネクス, TSE: 5998) is a Japan-based precision spring and metal processing manufacturer founded in 1930 and incorporated in 1946 as Kato Spring Manufacturing Co., Ltd., renamed to Advanex in 2001. The company designs, manufactures, and sells precision springs (compression, extension, torsion, conical, wire formings), flat springs (precision pressings, multi-formings, cold-forged products, insert collars), deep-drawn components with depth up to 37x outer diameter, insert moldings integrating plastic and metal, spring assemblies, and standardized products (Tangless inserts, LockOne, Instant Lock, AISERT) for thread reinforcement and bolt retention. Advanex also sells Heatnex, a carbon nanotube (CNT) film heater under a new materials line. Its proprietary technology stack includes NC Multi-Forming with servo-motor positional control, coiling capable of ±0.015mm wire diameter, and multi-forming methods that reduce scrap. The core engineering differentiation rests on accumulating decades of "Takumi" craftsmanship and proprietary training systems (匠塾, ATTC certification).

The company operates exclusively through direct B2B enterprise sales, with quote-based project pricing and multi-year contracts, serving automotive and aerospace (engine/safety/shift-by-wire springs), medical and healthcare (IV needle springs with 60% Japan share), IT/consumer electronics/mobile phones (50% world share in mobile phone hinges), and industrial equipment sectors. Global reach is the largest among spring manufacturers, with 15 overseas factories across 11 countries and 14 consolidated subsidiaries (Asia 10, North America 2, Europe 2). FY March 2026 consolidated revenue was ¥29,679 million on a consolidated headcount of 1,913, with the company publicly listed on the Tokyo Stock Exchange Standard Market. The business model is custom contract manufacturing — pricing is opaque, customer relationships are reportedly long-term, and there are no consumer-facing channels or distribution intermediaries.

Name

Advanex

Legal name

株式会社アドバネクス

Website

https://advanex.co.jp

Company type

Public

Founded year

1946

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Advanex Inc. is a Japan-based precision spring and metal processing manufacturer (TSE: 5998, founded 1930) operating 15 factories across 11 countries. It supplies precision springs, deep-drawn components, and insert moldings to automotive, medical, and electronics manufacturers via direct B2B enterprise sales.

Ownership category

akta.pro rank

Product category

Precision Metal Components Manufacturing

NAICS

Spring and Wire Product Manufacturing (3326), Spring and Wire Product Manufacturing (33261), Other Fabricated Wire Product Manufacturing (332618)

SIC

Sheet Metal Work (3444), Metal Forgings & Stampings (3460), Miscellaneous Fabricated Metal Products (3490)

akta.pro primary industry

Metal Forming & Fabrication Machines (Presses, Bending, Shearing, Stamping) (IMAHADAC)

akta.pro secondary industries

Metal Cutting Tools, Tooling & Workholding (Cutters, Inserts, Chucks, Fixtures) (IMAHADAB), Electrical & Electronics Injection Molded Components (Connectors, Housings) (IMANAFAD)

Keywords

• Precision springs
• Metal stampings
• Insert molding
• Deep drawn components
• Thread reinforcement inserts

Headquarters

HQ city

Tabata

HQ country

Japan

HQ region

Asia

Offices27 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precision Spring Manufacturing: Design, manufacture, and sale of precision springs including wire springs (compression, tension, torsion, conical) and flat springs for various industrial applications.
2. Precision Metal Components: Manufacturing and sale of precision pressed parts, multi-formings, forged products, insert collars, and deep-drawn components for automotive, medical, and electronics industries.
3. Standard Products: Sale of standardized products including tangless inserts, tangless insert kits, LockOne, Instant Lock, and AISERT for thread reinforcement and bolt retention applications.
4. Insert Molding Services: Custom insert molding services combining plastic and metal components for cameras, connectors, electronic components, automotive electronics, antenna parts, and lithium-ion battery components.
5. New Materials (Heatnex): Sale of Heatnex carbon nanotube (CNT) film heaters - sheet-type heating materials for creating planar heating elements with uniform heating, flexibility, and far-infrared radiation.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Advanex designs and manufactures precision metal components including wire springs (compression, extension, torsion, conical, wire formings), flat springs (precision pressings, multi-formings, forged parts, insert collars), deep-drawn parts, and insert moldings that combine plastic and metal into unified components. The portfolio also includes standardized thread-reinforcement products such as Tangless Inserts, LockOne, Instant Lock, and AISERT, as well as Heatnex carbon nanotube-based sheet heaters under new materials. The company operates 15 overseas production bases across 11 countries, serving automotive, medical, electronics, and industrial equipment manufacturers through direct B2B sales.

Product overview

Advanex is a precision spring and metal processing manufacturer offering wire springs, flat springs, deep drawing, insert molding, and assembly products. The portfolio includes compression springs, extension springs, torsion springs, conical springs, and wire formings under Wire Springs; precision pressings, multi-formings, forging press products, and insert collars under Flat Springs; deep drawing products; insert moldings combining plastic and metal; spring assemblies; and standard products including tangless inserts, LockOne, Instant Lock, and AISERT. The company also offers new materials like HEATNEX carbon nanotube-based sheet heaters. Advanex serves automotive, aerospace, medical, IT/consumer electronics, OA equipment, and industrial machinery sectors globally.

Differentiator

Problem solved

Functional benefit

Products and services

• Compression Springs (押しばね) Compression springs that generate restoring force when compressed, the most common type of coil spring used across industrial applications.
• Extension Springs (引きばね) Extension springs that operate in the tension direction, the second most widely used coil spring type after compression springs.
• Torsion Springs (トーションばね) Springs with legs at both ends that utilize repulsive force when twisted, requiring design expertise for leg shapes and load calculations.
• Conical Springs (円錐ばね) Springs made by winding material in a conical shape, reducing body bending and allowing a lower closed height.
• Wire Formings (ワイヤーフォーミング) Springs or shaped products made by bending, rounding, and pressing coiled or fixed-length metal materials.
• Precision Pressings (精密プレス品) Springs or shaped products made by stamping, bending, rounding, and pressing plate and strip metal materials using press machines.
• Multi Formings (マルチフォーミング) Springs or shaped products processed in a single step by cutting and multiple bends using multi-forming machines.
• Forging Press (鍛造品) Cold-forged products made by piercing, bending, drawing, and pressing plate and strip metal materials into dies, achieving higher precision than hot forging.
• Insert Collars (インサートカラー) Metal reinforcement fittings used when fastening molded products with bolts, processed using multi-forming machines with dimple shapes proposed based on pull-out strength requirements.
• Deep Drawings (深絞り) Deep drawing products with drawing depth up to 37 times the outer diameter, handling brass, phosphor bronze, nickel silver, iron, stainless steel, aluminum, and clad materials.
• Insert Moldings (インサート成形) Technology integrating plastic and metal components into unified parts, used in camera lens components, connectors, electronic parts, automotive electrical components, antenna parts, and lithium-ion battery parts.
• Spring Assemblies (組立) Finished products combining multiple materials and various components using various fastening methods.
• Tangless Inserts (タングレス・インサート) Diamond-shaped materials wound into coils, inserted into weak female threads of soft metal, cast iron, or resin to achieve reliable and strong thread fastening.
• Tangless Inserts Kit (タングレス・インサートキット) Kits ideal for small quantities or trial use of tangless inserts for thread repair, compatible with automatic insertion tools.
• LockOne (ロックワン) Spring fastener that prevents bolt and nut loosening, easily installed with standard socket wrenches, compliant with NAS3350 specifications, available in sizes M4 to M24.
• Instant Lock (インスタントロック) Spring fastener recommended by Japan Earthquake-resistant Ceiling Construction Association, hand-installable without tools, compliant with NAS3350 specifications.
• AISERT (アイサート) Insert ideal for reinforcing threads in hard plastic, insertable from either direction, with chip collection capability in blind holes.
• HEATNEX (ヒートネクス) Sheet-type heater material with carbon nanotube (CNT) film coating that heats uniformly across the entire surface, flexible, and emits far-infrared radiation.

Quantifiable outcome

• 60% domestic market share in IV needle springs for medical use
• +4 more outcomes

Named customers11 records

Segments5 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 indicators17 records

Recent moves13 records

Expansion highlights7 records

Direct peers

• MW Industries: US-based manufacturer of precision springs, fasteners, and metal components serving aerospace, medical, and industrial markets—comparable to Advanex's precision components and medical/industrial verticals.
• Scherdel: German precision formed metal components and spring manufacturer serving automotive and industrial customers—comparable to Advanex's deep drawing, multi-forming, and automotive precision components.
• Lesjöfors: Swedish-based European leader in industrial springs and pressings with global production—comparable to Advanex's wire springs, flat springs, and multi-country manufacturing footprint.
• Lee Spring: US-based spring manufacturer offering catalog and custom compression, extension, and torsion springs—comparable to Advanex's wire spring product line, though smaller in scope and customization depth.
• Kern-Liebers: German precision formed metal components manufacturer producing springs, flat parts, and assemblies for automotive and industrial customers—comparable to Advanex's precision pressings and wire formings.
• NHK Spring (Nippon Heiwa): Japan's largest spring manufacturer, producing automotive suspension springs, seat springs, and precision springs—directly comparable to Advanex's automotive and precision metal processing business with substantially larger scale.
• Chuo Spring: Japanese spring manufacturer focused on automotive and industrial springs including precision coil springs and formed wire products—directly comparable to Advanex's wire spring and multi-forming product lines.
• Tokai Spring: Japanese precision spring manufacturer serving automotive and electronic equipment markets—comparable to Advanex's automotive spring and precision pressed parts portfolio.
• Suncall Corporation: Japanese precision metal components manufacturer producing springs, HDD components, and formed wire parts—directly comparable to Advanex's precision metal processing for electronics and IT customers.

Broad incumbents

• Tsubaki Nakashima: Japanese precision components manufacturer producing ball bearings, springs, and formed metal parts across automotive and industrial markets—broader portfolio but overlapping precision metal forming capability with Advanex.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries15 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 Advanex