Shinyo Co.

What Shinyo Co. does

Shinyo Co. (シンヨー株式会社) is a 90+ year-old Japanese construction services firm operating two core business lines: (1) Apartment Renewal/Major Repair Services (マンションリニューアル事業) covering large-scale renovation of condominiums and residential complexes including exterior painting, waterproofing, and structural repairs, and (2) Infrastructure/Coating Services (インフラ事業) covering industrial plant maintenance, bridge coating, tank painting, and proprietary surface cleaning for petrochemical, power, and gas operators. The company also operates a technical personnel dispatch business under a worker dispatch permit acquired in 1995. Its proprietary technologies include the Shot Run Method (ショットラン工法) for tube interior cleaning and the Soft Shot Cleaning (SSC) Method (ソフトショットクリーニング工法), which uses soft abrasive particles propelled by air to remove scale, sludge, and graffiti without damaging underlying surfaces and with reduced industrial waste. The firm also offers heat-blocking coating and asbestos survey/removal services.

Shinyo generates revenue primarily through project-based one-time construction contracts for both renovation and infrastructure/coating segments, supplemented by recurring revenue from licensed technical personnel dispatch. Its go-to-market model is direct enterprise field sales, with dedicated sales departments (Renovation Sales Department, Coating Sales Department) organized by business line and supported by 20+ branch offices across Japan, including permanent embedded offices at major refinery sites (ENEOS in Sendai, Kashima, and Sakai). The company services a subcontractor base of approximately 496 member companies through the Sinyo Safety Health Cooperation Association to execute large-scale projects. Customers include petrochemical and energy plant operators, condominium management associations, building owners, and government agencies (e.g., Kanagawa Prefecture civil engineering offices). The firm is privately held with institutional shareholders dominated by Japanese insurance companies and banks; Meiji Machinery Corporation was its parent from 1994 until Sinyo exited equity-method consolidation in 2011 and 2023.

As of June 2026, Shinyo employs 272 people across all branches and divisions, with 89 certified site supervisor engineers and 88 first-class building construction management engineers supporting its technical delivery capability. The company holds ISO 9001 and ISO 14001 certifications (since 2002 and 2001 respectively), a Business Continuity Plan certification (2022), and Eruboshi women's participation certification (2022). The most recent disclosed revenue figure is FY2008 sales of approximately 13.4 billion JPY (a record high at that time). Recent strategic events include branch upgrades and new offices in 2025, a sales headquarters restructuring in 2024, a leadership transition in June 2024, and a March 2025 raid inspection by the Japan Fair Trade Commission on suspected Anti-Monopoly Act violations in large-scale renovation projects.

Name

Shinyo Co.

Legal name

シンヨー株式会社

Website

https://sinyo.com

Company type

Private

Founded year

1930

Operating status

Operating

Headcount range

251–500 employees

Short description

Shinyo Co. is a 90+ year-old Japanese construction services firm specializing in condominium large-scale renovation and industrial infrastructure coating/painting, serving petrochemical plants, building owners, and government agencies across Japan through 20+ branch offices.

Ownership category

akta.pro rank

Product category

Construction and Industrial Maintenance Services

NAICS

Coating, Engraving, Heat Treating, and Allied Activities (3328), Siding Contractors (23817), Paint, Coating, and Adhesive Manufacturing (3255)

SIC

Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851), Coating, Engraving & Allied Services (3470)

akta.pro primary industry

Industrial Protective Coatings (Steel/Concrete/Equipment) (IMAIAKAB)

akta.pro secondary industry

Exterior Painting & Surface Coatings (HSAPAKAF)

Keywords

• Building renovation services
• Industrial coating services
• Condominium repair construction
• Anticorrosion surface treatment
• Technical personnel staffing

Headquarters

HQ city

Kawasaki

HQ country

Japan

HQ region

Asia

Offices20 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Building Renewal / 大規模修繕工事: Large-scale renovation and renewal construction services for condominiums and residential complexes, including exterior painting, waterproofing, and structural repairs. Revenue is project-based and one-time per contract.
2. Plant Maintenance / インフラ事業 ( Coating): Industrial plant coating, tank painting, boiler internal cleaning, and infrastructure painting services for petrochemical, power, gas, and bridge sectors. Includes proprietary shot-blasting and soft-shot cleaning methods. Revenue is project-based.
3. Technical Personnel Staffing / 技術人材派遣: Dispatch of licensed technical personnel (construction management, engineering) to client sites under worker dispatch permits. Revenue is recurring based on assigned personnel contracts.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Shinyo Co. is a Japanese construction and engineering services company founded in 1930 specializing in large-scale condominium/apartment renovation and repair works (exterior painting, waterproofing, structural repairs) for residential complexes, and industrial infrastructure coating and cleaning services (plant painting, tank coating, bridge painting, tube cleaning using proprietary Shot Run and Soft Shot Cleaning methods) for petrochemical, power, energy, and government clients. The company also dispatches licensed technical personnel to client sites under worker dispatch permits and offers specialized asbestos removal and heat-reflective coating services.

Product overview

Shinyo Co. is a construction and engineering services company offering two main business lines: (1) Apartment Renewal/Major Repair Services for residential complexes including building diagnostics, painting, waterproofing, and long-term maintenance, and (2) Infrastructure/Painting Services covering industrial plant maintenance, bridge coating, tank painting, and specialized cleaning methods. The company operates proprietary techniques including the Shot Run Method for tube cleaning and Soft Shot Cleaning (SSC) Method, along with heat-blocking coating and asbestos removal services. Shinyo maintains nationwide coverage through over 20 offices across Japan.

Differentiator

Problem solved

Functional benefit

Products and services

• Apartment Renewal/Major Repair Services (マンションリニューアル事業) Large-scale renovation and repair construction services for apartments, condominiums, and residential complexes, including building diagnostics, exterior painting, waterproofing, structural repairs, and long-term maintenance support. Targeted at condominium management associations, property management companies, and building owners nationwide.
• Infrastructure/Painting Services (インフラ事業/coating事業) Industrial plant maintenance, bridge coating, tank painting, and infrastructure protection services for oil refineries, petrochemical plants, power facilities, and civil infrastructure. Includes anticorrosion coating of plant equipment, tank interiors, boiler internals, and structural steel. Targeted at petrochemical, energy, and government infrastructure operators.
• Heat-Blocking Coating (遮熱コーティング) Heat-reflective coating application for building roofs and walls that reduces surface temperatures and minimizes heat transfer, resulting in energy savings and reduced air conditioning costs. Targeted at building owners seeking energy efficiency improvements.
• Asbestos Removal (アスベスト除去) Safe asbestos detection, removal, and remediation services using environmentally-friendly methods with priority on worker safety and regulatory compliance. Targeted at building owners needing hazardous material remediation to meet safety and environmental regulations.
• Technical Personnel Staffing (技術人材派遣) Dispatch of licensed technical personnel (construction management engineers, engineering professionals) to client sites under worker dispatch permits. Provides recurring professional services revenue based on assigned personnel contracts. Targeted at companies requiring qualified construction and engineering personnel.

Quantifiable outcome

• Industrial waste significantly reduced through proprietary SSC cleaning method compared to conventional sandblasting
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Five partnerships are on record, tiered minor and core.

• Tokyo Chamber of Commerce and Industry (東京商工会議所)minorOthersMember business organization. Listed in membership section of company profile.
• Kawasaki Chamber of Commerce and Industry (川崎商工会議所)minorOthersMember business organization. Listed in membership section of company profile.
• Sinyo Corporation Safety and Health Cooperation Association (シンヨー株式会社安全衛生協力会)coreOthersAssociation of approximately 496 member companies (正会員277, 準会員160, 賛助会員59) organized by Sinyo to promote safety and health standards in construction projects. The association holds regular general meetings, technical committees (painting, waterproofing, scaffolding, West region), and safety conventions.
• Meiji Machinery Co., Ltd. (明治機械株式会社)minorStrategic or Co-development PartnerParent company (，持分法適用会社). Meiji Machinery became Sinyo's parent in 1994 (April) when Toyokuni Koji's shares were transferred to Meiji Machinery, making it Sinyo's largest shareholder. Sinyo later left Meiji Machinery's equity method application in 2011 (December) and 2023 (January).
• ENEOS Corporation (ENEOS株式会社)coreStrategic or Co-development PartnerSinyo maintains permanent branch offices within ENEOS refinery sites in Sendai and other locations for coating and maintenance operations, indicating a long-term operational partnership for refinery maintenance services.

Scale indicators6 records

Recent moves10 records

Expansion highlights8 records

Broad incumbents

• Daiwa House Industry Co., Ltd. Japan's largest homebuilder and broad real-estate conglomerate with significant commercial construction, renovation, and facility management operations. Competes with Shinyo on building renovation contracts but as part of a much wider portfolio across housing, logistics, and commercial development.
• Shimizu Corporation: One of Japan's 'super-zenecon' general contractors with industrial plant construction, infrastructure, and building maintenance divisions. Overlaps with Shinyo's industrial coating and bridge infrastructure work, but as a small portion of a multi-trillion-yen construction portfolio.
• Dai Nippon Toryo Co., Ltd. Japanese industrial paint manufacturer specializing in heavy-duty anticorrosion, marine, and protective coatings — directly adjacent to Shinyo's core industrial coating application work. Operates in the same Japanese industrial coatings value chain, primarily as a manufacturer.
• Nippon Paint Holdings Co., Ltd. Asia's largest paint manufacturer with industrial coatings, decorative paints, and some coating service adjacencies. Functions as a supplier and partial competitor to Shinyo in the protective coatings value chain, but with a manufacturing-led rather than application-led model.
• Kansai Paint Co., Ltd. Major Japanese and global paint manufacturer with industrial, automotive, and protective coatings lines. Supplies coating products Shinyo applies and competes in adjacent industrial coating service segments as a broad incumbent.
• Taisei Corporation: Major Japanese general contractor with substantial civil infrastructure, plant engineering, and building renovation operations. Touches Shinyo's industrial coating and building renewal end markets but competes from a much larger, diversified position.
• Kajima Corporation: Leading Japanese general contractor with extensive building construction, civil engineering, and renovation operations including industrial coating projects. A broad incumbent that competes with Shinyo on selected renovation and infrastructure bids.

Direct peers

• HASEKO Corporation: Japan's largest condominium-focused construction and renovation contractor, with a major large-scale repair (大規模修繕) business directly comparable to Shinyo's apartment renewal segment. Operates nationwide with deep relationships with condominium management associations, mirroring Shinyo's go-to-market.
• Tokyu Construction Co., Ltd. Major Japanese general contractor with strong building renovation, repair, and infrastructure coating capabilities serving both residential and industrial clients. Directly overlaps with Shinyo's combined building renewal and infrastructure/coating service lines.
• Anabuki Kosan Inc. Japanese real estate company focused on condominium management, large-scale repair construction, and building renovation. Direct overlap with Shinyo's apartment/mansion renewal business and target customer base of condo management associations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/33380899

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries5 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 Shinyo Co.