Social Insurance Consulting Firm EOS

What Social Insurance Consulting Firm EOS does

Social Insurance Consulting Firm EOS (社会保険労務士法人EOS) is a Tokyo-headquartered Japanese professional services firm that provides outsourced social insurance and labor insurance procedures, payroll processing, and HR/labor consulting under a licensed social insurance labor consultant credential. Established as part of the EP Consulting Service Co., Ltd. (株式会社EPコンサルティングサービス) group, the firm operates from headquarters in Minato-ku, Tokyo with branch offices in Kumamoto and Okinawa, supported by related entities covering tax accounting, administrative scrivening, and labor insurance affairs associations.

The firm's offering is structured around four integrated service lines: social insurance procedures (electronic filing of social and labor insurance documents, monthly remuneration changes, and annual base salary calculations), HR and labor consulting (compliance advisory, employment rule reviews, HR due diligence, and training), payroll processing (monthly calculations, year-end adjustments, payment agency including overseas remittance), and a dedicated foreign-company services line (bilingual payroll, tax equalization, gross-up calculations, and Japan market entry support for multinational subsidiaries). Service delivery follows a multi-staff team model (manager/reviewer/preparer) with double-check quality control, and the firm holds P-mark (Privacy Mark) certification for personal data handling.

The business model is subscription-based with monthly retainers and custom per-client quotes based on workforce size, transaction volume, and service scope. The client base spans Japanese large enterprises with workforces in the thousands, foreign-owned and multinational subsidiaries requiring bilingual support, and mid-market companies seeking to outsource administrative HR work. Marketing and distribution are direct, with inquiries routed through the parent company's website and a free initial consultation preceding any engagement; no third-party channels, marketplace listings, or reseller relationships are used.

Name

Social Insurance Consulting Firm EOS

Legal name

社会保険労務士法人EOS

Website

https://eos-sr.jp

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Short description

Social Insurance Consulting Firm EOS is a Tokyo-headquartered licensed Japanese professional services firm that outsources social insurance procedures, payroll processing, HR/labor consulting, and bilingual foreign-company services to Japanese enterprises, multinational subsidiaries, and mid-market companies.

Ownership category

akta.pro rank

Product category

Social Insurance and HR Outsourcing Services

NAICS

Professional Employer Organizations (561330), Professional Employer Organizations (56133)

SIC

Services-Management Consulting Services (8742), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Professional Employer Organization (PEO) / Co-Employment Services (BPACAHAB)

akta.pro secondary industries

Pay Card Programs & Earned Wage Access (EWA) Administration (BPACAIAK), Expense Management & T&E Audit (Employee Expenses, Corporate Cards) (BPAAAGAE)

Keywords

• Social insurance outsourcing
• Payroll processing services
• HR labor consulting
• Foreign company HR services
• Benefits administration Japan

Headquarters

HQ city

Minato-ku, Tokyo

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Social Insurance Procedure Outsourcing: Monthly retainer or per-transaction fees for handling social insurance (shakai hoken) and labor insurance (rōdō hoken) procedures. Services include electronic filing of required documents, monthly remuneration changes, and annual base salary calculations.
2. Payroll Processing: Monthly payroll calculation services, including salary disbursement, tax withholding, resident tax, and social insurance premium payments. Typically structured as a monthly retainer.
3. HR/Labor Consulting: Time-charge (hourly) billing for HR/labor consulting services. Fixed monthly retainer plans are also available for clients with regular consulting needs. Includes labor compliance advisory, employment rule (koyo kitei) reviews, and HR due diligence.
4. Payment Agency Services: Salary disbursement, tax remittance, and overseas remittance services handled on behalf of clients, typically bundled with payroll processing.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Social Insurance Consulting Firm EOS is a licensed social insurance labor consultant firm that outsources Japanese social insurance and labor insurance procedures, payroll calculation and payment agency services, and HR/labor compliance consulting. The firm also provides bilingual outsourcing services tailored to foreign-affiliated companies operating in Japan, including tax equalization, gross-up calculations, overseas remittance, and Japanese market entry setup for subsidiaries, branches, and representative offices.

Product overview

社保労務士法人EOS is a professional HR outsourcing firm offering four integrated core services: (1) 社会保険手続き (Social Insurance Procedures) for government document preparation and submission via electronic filing, (2) 人事労務コンサルティング (HR & Labor Consulting) for compliance analysis, labor advisory, and HR department training, (3) 給与計算 (Payroll Processing) for salary calculations, year-end adjustments, and payment agency services including overseas remittance, and (4) 外资系企業向けサービス (Foreign Company Services) providing bilingual support for expats, tax equalization, gross-up calculations, and Japanese market entry assistance. The four services are designed to work synergistically — payroll processing integrates with social insurance procedures for seamless monthly processing, and HR consulting informs and aligns with both payroll and social insurance changes. A multi-staff team structure (manager/reviewer/preparer) with double-check protocols supports all services.

Differentiator

Problem solved

Functional benefit

Products and services

• 社会保険手続き (Social Insurance Procedures)

Quantifiable outcome

• Typical implementation period of 3 months for mid-size clients (hundreds of employees), with potential to shorten for urgent cases by taking over current operations as-is
• +2 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Eight partnerships are on record, tiered core and minor.

• EP Consulting Service Co., Ltd. (株式会社EPコンサルティングサービス)coreOthersParent company and operator of the EOS social insurance consulting firm. Provides the primary contact infrastructure and manages overall business operations for EOS.
• EPCS Okinawa Co., Ltd. (株式会社EPCS沖縄)minorOthersRelated group company based in Okinawa, operating as part of the broader EOS network of professional service firms.
• Business Brain Otashowo Co., Ltd. (株式会社ビジネスブレイン太田昭和)minorOthersRelated group company within the EOS professional services network.
• BBS Outsourcing Kumamoto (株式会社BBSアウトソーシング熊本)minorOthersRelated group company providing outsourcing services in the Kumamoto region.
• Tax Accountant Corporation EOS (税理士法人EOS)minorOthersGroup tax accountant corporation providing tax-related professional services within the EOS network.
• Administrative Scrivener Corporation EOS (、行政書士法人EOS)minorOthersGroup administrative scrivener corporation within the EOS professional services network.
• Labor Insurance Affairs Association Okinawa SME Labor Welfare (労働保険事務組合沖縄中小企業労働福祉協会)minorOthersLabor insurance affairs association (labor insurance administrative union) in Okinawa. Related entity that handles labor insurance paperwork for small and medium enterprises.
• Tokyo Employers Association Labor Insurance Affairs Council (労働保険事務組合東京都経営者協議会)minorOthersTokyo-based labor insurance affairs council (labor insurance administrative union). Related entity managing labor insurance administrative paperwork for member employers.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Emerging players

• PayS (Pays / ペイズ): PayS provides cloud-native payroll, social insurance, and HR services for Japanese employers. As a newer entrant with SaaS-led delivery, it pressures traditional consulting-firm BPOs like EOS on pricing and turnaround.
• SmartHR: SmartHR is a leading Japanese HR SaaS platform for social insurance and employment management that increasingly bundles BPO services through partners. Competes with EOS on automation of social insurance filings while expanding into outsourced service delivery.
• Kaonavi (カオナビ): Kaonavi is a Japanese talent management and HR platform increasingly bundling social insurance and payroll workflows. Adjacent competitor whose growing BPO partner ecosystem overlaps with EOS's traditional service-led model.

Broad incumbents

• ManpowerGroup Japan: ManpowerGroup Japan provides staffing and HR outsourcing with dedicated support for foreign-affiliated companies, overlapping EOS's multilingual payroll and social insurance offering.
• Pasona Group: Pasona is Japan's largest HR services conglomerate offering BPO, payroll outsourcing, social insurance procedures, and PEO/co-employment services. It directly overlaps EOS's core offering but operates at vastly greater scale and serves multinationals through dedicated global services.
• Adecco Japan: Adecco Japan offers staffing and HR outsourcing including payroll, social insurance administration, and bilingual support for foreign-affiliated clients—an overlapping segment with EOS's foreign-company service line.
• Recruit Holdings (HR outsourcing arm): Recruit's HR technology and BPO offerings (including Indeed, AirWork, and staffing subsidiaries) overlap with EOS's payroll, social insurance, and HR advisory services. It competes on automation, scale, and integrated SaaS + BPO delivery.
• Mynavi (HR Solutions): Mynavi provides staffing, payroll outsourcing, and HR consulting with strong mid-market and SME reach in Japan. Overlaps with EOS in payroll, social insurance, and HR advisory, with greater brand recognition and digital marketing capability.

Direct peers

• Mykawaya / Kawaya (社保労務 / HR BPO firms): Mykawaya is a social insurance and labor consulting firm offering outsourced procedures, payroll, and HR consulting for Japanese SMEs and mid-market clients—a similar positioning to EOS with comparable service scope.
• HR-One (HRワン): HR-One provides cloud-based payroll, social insurance procedures, and HR BPO for Japanese employers including SMEs and mid-market companies. Closest direct peer to EOS given the social insurance + payroll + consulting bundle.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/eos.sharoshi
• LinkedInlinkedin.com/company/sharoshi-eos

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries7 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 Social Insurance Consulting Firm EOS