What SAKAMOTO INDUSTRY does

SAKAMOTO INDUSTRY CO., Ltd. (坂本工業株式会社) is a Japanese Tier 1 automotive parts manufacturer founded in 1960 and headquartered in Ota, Gunma Prefecture, where it operates as a private subsidiary of SRD Holdings Co., Ltd. (SRDホールディングス株式会社). The company specializes in two principal product families: vehicle exhaust/intake systems and resin-based fuel tanks, both produced under a B2B hardware-sales model that supplies components directly to vehicle manufacturers. Its largest disclosed customer is Subaru (Fuji Heavy Industries / FHI), for which the company is described as the primary or exclusive developer of exhaust systems on new vehicle models, with its engineers embedded directly in FHI development projects.

The firm's technical platform rests on in-house CAE (computer-aided engineering) for performance analysis and strength-reliability assessment, supplemented by experimental testing — including proprietary fire-resistance testing facilities — to validate CAE outputs. It also maintains joint research collaborations with Japanese universities, including doctoral-course enrollment for employees, to advance next-generation component engineering. GTM motion is enterprise field sales directly into OEM engineering teams; revenue mechanics are OEM-tier contract manufacturing on multi-year vehicle programs, with no public pricing disclosure.

Commercially, the business is concentrated within the Subaru / Gunma supply cluster, with no disclosed diversification into other OEMs, geographic markets beyond Japan, or non-automotive product lines. The company has 501-1,000 employees and remains under family-influenced leadership, with Sakamoto Kiyokazu (坂本清和) serving as President and Representative Director. Recent operational signals include continued new-graduate recruitment into 2026 and a board transition effective April 1, 2026.

Name

SAKAMOTO INDUSTRY

Legal name

坂本工業株式会社 (Sakamoto Industry Co., Ltd.)

Website

https://sakamotonet.co.jp

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Sakamoto Industry is a Japanese Tier 1 automotive parts manufacturer specializing in exhaust/intake systems and resin fuel tanks, supplying primarily Subaru (FHI) from its Ota, Gunma facility under the SRD Holdings group using in-house CAE and testing capabilities.

Ownership category

akta.pro rank

Product category

Automotive Parts Manufacturing

NAICS

Motor Vehicle Parts Manufacturing (3363)

SIC

Engines & Turbines (3510)

akta.pro primary industry

Passenger Vehicle Engine Systems Manufacturing (ICE) (IMACAAAF)

akta.pro secondary industry

Passenger Vehicle Fuel System Manufacturing (ICE) (IMACAAAH)

Keywords

• Automotive parts manufacturing
• Exhaust systems
• Resin fuel tanks
• OEM supplier
• Vehicle components

Headquarters

HQ city

Ota

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Automotive OEM Parts Supply: B2B manufacturing and supply of automotive components to vehicle manufacturers (primarily Subaru/Fuji Heavy Industries). Revenue generated through long-term OEM supplier relationships for exhaust systems and fuel tanks on new vehicle models.

Go-to-market motion1 record

Marketing channels1 record

Core offering

SAKAMOTO INDUSTRY is a Japanese Tier 1 automotive parts manufacturer that designs, develops, and manufactures exhaust/intake systems and resin fuel tanks primarily for Subaru (Fuji Heavy Industries). The company operates in-house CAE (computer-aided engineering), testing, and production capabilities to supply OEM components for new vehicle development programs.

Product overview

Based on employee testimonials and navigation menus, SAKAMOTO INDUSTRY appears to be an automotive parts manufacturer operating as a Tier 1 supplier. The company develops and manufactures exhaust/intake systems (吸排气系) and fuel tanks (燃料-tank) for automotive applications, with involvement from Fuji Heavy Industries (FHI). However, detailed product information is not available in the provided source content as the products information page (products01.html) was not included in the source data.

Differentiator

Problem solved

Functional benefit

Products and services

• Exhaust Systems
• Resin Fuel Tanks

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Subaru (Fuji Heavy Industries)coreStrategic or Co-development PartnerPrimary customer and development partner for automotive exhaust systems. The company develops and supplies exhaust systems for Subaru's new vehicle models, with engineers working directly on FHI development projects.

Scale indicators1 record

Recent moves4 records

Expansion highlights4 records

Direct peers

• Yachiyo Industry Co., Ltd. Japanese Tier 1 fuel tank specialist (Honda group). Comparable because fuel tank manufacturing is one of Sakamoto's two core product lines, and Yachiyo represents the most direct specialization overlap on that specific product.
• Futaba Industrial Co., Ltd. Japanese Tier 1 supplier specializing in exhaust systems and frame components for major OEMs including Honda and Toyota. Highly comparable in product scope (exhaust), customer-base model (OEM supply), and Japanese mid-sized Tier 1 profile.
• Sango Co., Ltd. Japanese manufacturer of exhaust systems and related automotive components. Directly comparable in that it is a Japan-based Tier 1 exhaust supplier of similar scale, serving multiple OEMs with the same core product category as Sakamoto Industry.
• Yorozu Corporation: Japanese automotive components manufacturer producing suspension, exhaust, and powertrain-related parts. Comparable as a similarly-sized Japan-based Tier 1 supplier with overlapping exhaust-systems business and diversified OEM customers.
• H-One Co., Ltd. Japanese automotive supplier producing exhaust systems, fuel tanks, and frame components for OEMs. Closely comparable to Sakamoto because its product portfolio explicitly overlaps on both exhaust systems AND fuel tanks — the same two core product lines.
• Yutaka Giken Co., Ltd. Japanese Tier 1 supplier of exhaust systems, oil filters, and torque converters. Comparable as a similarly-sized Japanese manufacturer with overlapping exhaust-systems expertise and analogous OEM customer model.
• Fuji Techno Industry Co., Ltd. Japanese Tier 1 supplier serving Subaru and other OEMs with exhaust and chassis components. Directly comparable given the shared Subaru/FHI customer base and similar product mix and scale profile.

Broad incumbents

• Tenneco Inc. Global Tier 1 supplier of exhaust systems, ride performance, and clean air products. Comparable as a broad incumbent in the same exhaust-systems category, but at significantly larger scale and with global customer reach that Sakamoto does not match.
• Faurecia (FORVIA): One of the world's largest automotive technology suppliers with a major exhaust/emissions business (now part of FORVIA). Comparable in exhaust-systems category but operates globally at vastly greater scale and across multiple technology domains.
• Eberspächer Group: German-headquartered global Tier 1 supplier specializing in exhaust technology, thermal management, and automotive electronics. Comparable as a broad incumbent in the same exhaust-systems category, with much larger scale and international footprint.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

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 SAKAMOTO INDUSTRY