What Matsui does

Matsui Corporation (マツイ株式会社) is a privately held Japanese manufacturer founded in 1954 and headquartered in Toyohashi, Aichi Prefecture, operating in the Chubu Region. The company manufactures and assembles automotive interior components, with a core product portfolio that includes small automotive interior switches, function switches, interior lighting accessories, key locks, card keys, door lock switches, and two-wheel handle switches. Its core go-to-market is B2B direct sales to automotive manufacturers and parts suppliers, with quote-based pricing and no public e-commerce or retail channels identified. The company also operates a supplementary service called Matsui Lab (マツイラボ), which uses a Keyence 3D printer and CATIA CAD system to accept custom prototyping and small-batch production requests from individuals and businesses across diverse product categories.

The business operates with 251-500 employees and maintains ISO 9001 quality management certification (since 2002, recertified through NSF in March 2024) and ISO 14001 environmental management certification (obtained February 2025). It is founder-owned and family-controlled, with Representative Director and President Matsui Hiroshimasu (松井 宏益) at the helm, and has no disclosed external investors, parent company, subsidiaries, M&A activity, patents, or public trademarks. The company has no disclosed revenue, no apps, no APIs, no digital channel, and no identified customer logos; its revenue model is implied to be contract-based B2B manufacturing with no public pricing transparency.

Across its 68-year history, Matsui has evolved from manufacturing candy and confectionery-making equipment to its current focus on automotive parts assembly. Notable compliance milestones include ISO 9002 certification in March 2001, ISO 9001 in August 2002, a certification body change in January 2015, the Security Action Two-Star certification from Japan's IPA in June 2022, and workplace health declaration certifications in 2022. The company's competitive positioning rests on its long-tenured manufacturing experience, quality and environmental certifications useful for OEM supplier qualification, and an in-house prototyping capability that is unusual for a sub-500-employee parts assembler.

Name

Matsui

Legal name

マツイ株式会社

Website

https://matsui-kk.jp

Company type

Private

Founded year

1954

Operating status

Operating

Headcount range

251–500 employees

Short description

Matsui Corporation (マツイ株式会社) is a privately held Japanese automotive parts manufacturer in Toyohashi, Aichi Prefecture, founded in 1954 and employing 251-500 people. It assembles and supplies small interior switches, function switches, key locks, and automotive lighting accessories to manufacturers, with a supplementary prototyping service called Matsui Lab.

Ownership category

akta.pro rank

Product category

Automotive Parts Manufacturing

NAICS

Motor Vehicle Parts Manufacturing (3363), Motorcycle, Bicycle, and Parts Manufacturing (336991)

SIC

Motorcycles, Bicycles & Parts (3751)

akta.pro primary industry

Passenger Vehicle Electrical & Electronics Manufacturing (ICE) (IMACAAAK)

akta.pro secondary industries

Automotive Interior Comfort & Convenience Components Manufacturing (Armrests/Cupholders/Storage/Interior Hardware) (IMACAKAJ), Automotive Lighting Assemblies Manufacturing (Headlamps/Taillamps/Interior Lamps/DRLs) (IMACAKAG)

Keywords

• Automotive parts manufacturing
• Interior switches
• Key lock components
• Prototype development
• Automotive assembly

Headquarters

HQ city

Toyohashi

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Core offering

Matsui manufactures and assembles automotive interior components, including small switches, function switches, interior accessories such as lighting, key lock mechanisms, card keys, door lock switches, and two-wheel handle switches for vehicle manufacturers. The company also operates Matsui Lab, an original development service that uses Keyence 3D printers and CATIA CAD systems to produce prototypes and small-batch custom products for both corporate clients and individuals.

Product overview

Matsui is an automotive parts manufacturer specializing in interior components. Their core product portfolio includes small switches, function switches, interior accessories/lighting, key locks, card keys, door lock switches, and two-wheel handle switches. The company operates a supplementary original development service called Matsui Lab (マツイラボ) that leverages 3D printing (Keyence) and CATIA CAD systems for custom prototyping and small-batch production across diverse genres.

Differentiator

Problem solved

Functional benefit

Brands

• マツイラボ (Matsui Lab): Original development division offering prototype manufacturing and custom product development services for both corporate and individual clients

Products and services

• Automotive Interior Small Switches (自動車用内装小型スイッチ) Small switches for automotive interior applications, manufactured and assembled by Matsui for vehicle manufacturers and parts suppliers as part of the company's core product portfolio.
• Function Switches (機能スイッチ)
• Interior Accessories/Lighting (内装アクセサリ)
• Key Lock (キーロック)
• Card Key (カードキー)
• Door Lock Switch (ドアロックスイッチ)
• Two-Wheel Handle Switch (2輪ハンドルスイッチ)
• Other Assembly Products (その他アセンブリ)
• Matsui Lab Original Development Service (オリジナル開発 / マツイラボ)

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators1 record

Recent moves5 records

Expansion highlights3 records

Broad incumbents

• Toyoda Gosei Co., Ltd. Large Japanese automotive parts maker producing interior/exterior components, functional parts, and switches for major OEMs. Operates in overlapping categories to Matsui but at much greater scale and breadth.
• Kasai Kogyo Co., Ltd. Japanese automotive interior parts manufacturer producing instrument panels, door trims, and interior functional components. Comparable as a fellow mid-large Japanese interior parts supplier.
• Aisin Corporation: Massive Japanese Tier-1 automotive parts supplier offering a broad portfolio including interior components, switches, and HMI. Provides benchmark for what a scaled incumbent looks like in the same supply chains Matsui serves.
• TS Tech Co., Ltd. Japanese automotive interior components supplier (seats, interior trim). Larger-scale peer serving similar Japanese OEM customers from overlapping Chubu/Kanto supply base.

Direct peers

• Tokai Rika Co., Ltd. Japanese manufacturer of automotive switches, key/lock systems, and HMI components. Directly comparable to Matsui in core product categories (interior switches, key locks, card keys) and customer base (Japanese OEMs).
• U-Shin Ltd. Japanese maker of automotive lock systems, key sets, and door handle assemblies. Closely comparable niche to Matsui's key locks, card keys, and door lock switch lines.
• Hoshino Auto Parts Co., Ltd. Japanese manufacturer of keys, locks, and small interior components for two-wheeled and four-wheeled vehicles. Comparable in scale and product mix to Matsui's key/lock and two-wheel handle switch offerings.
• Alpha Corporation: Japanese automotive parts manufacturer specializing in door handles, locks, and key cylinders. Competes directly with Matsui in the lock and key segment for Japanese OEMs.

Regional players

• Ansei Co., Ltd. Japanese automotive component manufacturer specializing in switch and small interior parts. Comparable in scale, geography, and product mix to Matsui as a regional Japanese Tier-2 supplier.
• Nissei Corporation: Japanese automotive plastics/interior parts manufacturer with prototyping and small-batch capabilities. Comparable in the prototyping-services dimension that Matsui Lab offers and in serving Japanese OEM supply chains.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance4 records

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 Matsui