Ernst & Young ShinNihon LLC
Ernst & Young ShinNihon LLC is a Japan-based member firm of the global EY Big Four professional services network, delivering assurance, consulting, tax, strategy, and transaction advisory to enterprise clients across regulated industries via EY.ai and the EY-Parthenon sub-brand.
- Company typePrivate
- Founded1989
- HeadquartersLondon, United Kingdom
- Headcount5,001–10,000
- GTM typeB2B
- OfferingServices
What Ernst & Young ShinNihon LLC does
Ernst & Young ShinNihon LLC is a member firm of the global EY organization and one of the Big Four professional services networks, operating across assurance, consulting, tax, strategy, and transactions. The firm is part of a global network of 400,000+ professionals across 700+ offices in 150+ countries, anchored by Ernst & Young Global Limited as the parent coordinating entity; the US operating entity Ernst & Young LLP houses 57,000 professionals across 70+ locations, while the ShinNihon member firm is the Japan operating vehicle. The firm's product portfolio spans audit and assurance, tax compliance and controversy, transaction advisory (M&A, due diligence, valuation, investment banking) under the EY-Parthenon sub-brand, and consulting across technology, cybersecurity, supply chain, finance, and customer experience via EY Studio+.
The core technology stack centers on the EY.ai platform, backed by a US$1.4 billion investment, which unifies generative, agentic, and neurosymbolic AI capabilities co-developed with NVIDIA and deployed on Dell AI Factory infrastructure running on Microsoft Azure. Adjacent platforms include the US$1 billion, four-year Assurance Technology Platform supporting 160,000+ audit engagements, EY.ai for Risk, EY Telecom.ai agentic solution, EY Tax Copilot (Azure OpenAI), EY.ai Workforce (IBM), and the FedRAMP-authorized EY Grants Accelerator. Major ecosystem partnerships — Microsoft, NVIDIA, SAP, Dell, IBM, CrowdStrike, Zscaler, Databricks, Wolters Kluwer, Shopify, and Blue Planet — extend distribution and embed EY into client technology stacks.
Revenue is generated through professional services engagements and a growing portfolio of managed services (cybersecurity, financial crime, payroll, tax operate, technology). Pricing is quote-based, scoped per engagement, and typically structured as multi-year contracts. Customer segments are horizontal and enterprise-led: large corporations across technology, healthcare, energy, pharma, manufacturing, and government, alongside dedicated practices for private equity, financial services, and family enterprise. Named logos include Microsoft, Medtronic, Xcel Energy, Bristol Myers Squibb, St James's Hospital, CenterPoint Energy, City of Antwerp, and Daikin. Distribution is direct, via relationship-based field sales and sector-aligned teams; the firm has continued capability tuck-in M&A (Dignari 2024, Nuvalence 2024, Tallan 2023) to extend its AI, public-sector, and Microsoft cloud reach.
Ernst & Young ShinNihon LLC firmographics
Firmographics- Name
- Ernst & Young ShinNihon LLC
- Legal name
- Ernst & Young LLP
- Website
- https://ey.com
- Company type
- Private
- Founded year
- 1989
- Operating status
- Operating
- Headcount range
- 5,001–10,000 employees
- Short description
- Ernst & Young ShinNihon LLC is a Japan-based member firm of the global EY Big Four professional services network, delivering assurance, consulting, tax, strategy, and transaction advisory to enterprise clients across regulated industries via EY.ai and the EY-Parthenon sub-brand.
- Ownership category
- akta.pro rank
Ernst & Young ShinNihon LLC industry classification
Industry- Product category
- Professional Services (Audit, Tax, Consulting, and Strategy & Transactions)
- NAICS
- Management of Companies and Enterprises (551), Other Computer Related Services (541519)
- SIC
- Services-Engineering, Accounting, Research, Management (8700), Services-Management Consulting Services (8742)
- akta.pro primary industry
- Financial Reporting & Technical Accounting Advisory (GAAP/IFRS) (BPAHABAF)
- akta.pro secondary industries
- M&A Advisory (Buy-side/Sell-side) (BPAHADAC), Industry-Specialist / Sector-Focused M&A Advisory (FSAEAGAJ), Intercompany & Consolidation Support (Eliminations, Group Reporting Support) (BPAAAGAG)
Keywords
Where Ernst & Young ShinNihon LLC is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices18 records
Markets served
Ernst & Young ShinNihon LLC business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Professional Services Revenue: EY generates revenue through providing professional services including assurance, consulting, tax, strategy and transactions. Services are delivered across multiple industry sectors and geographies.
- Managed Services: Recurring managed services offerings including cybersecurity managed services, financial crime operations, forensic managed services, legal managed services, payroll operate, tax and finance operate, and technology managed services
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Enterprise professional services - customized engagement pricing |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels8 records
Ernst & Young ShinNihon LLC product offering
Product offeringCore offering
Ernst & Young ShinNihon LLC is the Japan-based member firm of EY that delivers integrated professional services spanning audit and assurance, tax, management and technology consulting, and strategy and transaction advisory. The firm serves Japanese corporates, multinational clients operating in Japan, and public-sector organizations through a network of more than 10,000 professionals and the global EY methodology, technology, and industry footprint.
Product overview
EY operates as a global professional services organization offering a comprehensive portfolio of services including Assurance, Consulting, Tax, Strategy and Transactions. The product ecosystem is centered on the EY.ai AI platform (including EY.ai Agentic Platform and EY.ai for Risk), supplemented by specialized AI tools like EY Tax Copilot and EY Grants Accelerator. The EY Parthenon sub-brand unifies strategy and transactions consulting, while EY Studio+ provides integrated customer experience services. EY also offers managed services including cybersecurity (powered by CrowdStrike), and technology transformation services built on partnerships with Microsoft Azure, SAP, NVIDIA, and IBM. The firm has invested over US$1b in its Assurance technology platform and US$1.4b in the EY.ai platform.
Differentiator
Problem solved
Functional benefit
Brands
- EY-Parthenon: Strategy and Transactions service line focused on transformative strategy consulting
- EY.ai
- EY Studio+
- EY wavespace
- EY Metaverse Lab
Products and services
- Audit and Assurance Statutory and voluntary audit services, financial reporting advisory, and assurance engagements aligned with global EY methodology and Japanese regulatory standards for corporates and public-sector entities.
- Tax Services Corporate and international tax compliance, tax planning, and tax-related advisory services covering Japanese tax requirements and cross-border tax structuring through the EY global tax network.
- Consulting Services Management, technology, risk, and operations consulting engagements, including digital transformation, ESG/sustainability advisory, and technology risk services, leveraging EY global methodologies and digital platforms.
- Strategy and Transactions Advisory Corporate strategy, mergers and acquisitions advisory, transaction diligence, valuations, and restructuring services delivered by the EY-Parthenon-aligned strategy and transactions teams in Japan.
Quantifiable outcome
- Enabled personalized care for over 78 million patients through Medtronic supply chain transformation
- +2 more outcomes
Companies that use Ernst & Young ShinNihon LLC
Customer profileNamed customers8 records
Segments10 records
Ideal customer profiles1 record
Ernst & Young ShinNihon LLC technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration12 records
AI capability8 records
Feature5 records
Ernst & Young ShinNihon LLC partnerships and signals
Strategic signalPartnerships
14 partnerships are on record, tiered core, minor and flagship.
- CrowdStrikecoreEY selected CrowdStrike Falcon Next-Gen SIEM to power global cybersecurity managed services for security and non-security data.
- FedRAMPminorEY Grants Accelerator earned FedRAMP authorization enabling federal agencies to modernize grants systems with scalable secure AI solution.
- DatabrickscoreLaunch of Databricks Center of Excellence in Mexico to accelerate AI training, development, and client innovation within EY-Databricks alliance.
- Blue Planet (Ciena Corporation)coreAlliance between Blue Planet and EY US to transform future of telecom by accelerating speed to value in AI-driven autonomous networking for communication service providers.
- Dell TechnologiescoreEY.ai enterprise private powered by Dell Technologies and NVIDIA accelerated computing to deliver enterprise agentic and physical AI at scale.
- NVIDIAflagshipCollaboration with NVIDIA to create EY.ai Agentic Platform for enterprise AI transformation across tax, risk, and finance domains. EY.ai enterprise private deployment model powered by Dell AI Factory with NVIDIA and EY.ai Agentic Framework.
- SAPcoreStrategic initiative with SAP and Microsoft to transition to SAP S/4HANA Cloud Private Edition on Microsoft Azure.
- Microsoft AzurecoreCloud infrastructure partner for SAP S/4HANA transition and EY.ai platform deployment.
- ZscalercoreStrategic alliance between Zscaler and EY US to help secure and simplify digital transformations through cloud-delivered services.
- IBMcoreLaunch of EY.ai Workforce, an AI-powered HR solution enabling organizations to integrate AI into key HR business processes.
- Microsoft Azure OpenAIcoreEY Tax Copilot powered by Microsoft Azure OpenAI Service to empower EY Tax professionals globally with generative AI capabilities.
- MicrosoftcoreExpanded alliance to help businesses achieve net-zero goals through ESG data management offerings supporting operational decarbonization.
- Wolters KluwercoreExtension of strategic alliance to include CCH Tagetik corporate performance management solution streamlining extended finance transformations.
- ShopifycoreEY-Shopify global alliance led by Warren Tomlin for digital transformation of brands and organizations.
Scale indicators9 records
Recent moves8 records
Expansion highlights7 records
Ernst & Young ShinNihon LLC competitors and assessment
Company assessmentDirect peers
- Deloitte: One of the Big 4 global professional services firms offering audit, consulting, tax, and advisory services across 150+ countries. Closest direct peer to EY with overlapping service lines, enterprise client base, and similar global scale and partnership structure.
- KPMG: Big 4 professional services firm operating in audit, tax, and advisory with a global member-firm structure mirroring EY's. Competes head-to-head for enterprise audit, tax, and consulting engagements.
- PwC: Big 4 firm providing assurance, advisory, tax, and consulting services globally. Directly competes with EY across audit, M&A advisory (Strategy&), and managed services with comparable multinational enterprise focus.
Emerging players
- Capgemini: Global IT and consulting services firm competing with EY on digital transformation, cloud, data/AI, and engineering services. Comparable multinational enterprise client base with deeper technology-delivery heritage.
- Cognizant: Global IT and consulting services firm with strong digital, cloud, and AI capabilities. Competes with EY on enterprise application modernization, data analytics, and managed services, though more IT-services-weighted than EY's advisory mix.
- IBM Consulting: Technology-led consulting arm of IBM and strategic EY partner (co-developed EY.ai Workforce). Competes with EY's technology transformation practice on hybrid cloud, AI, and ERP modernization, and is itself a partner ecosystem participant.
Broad incumbents
- McKinsey & Company: Global management consulting firm and direct competitor for EY-Parthenon strategy and transformation work. Comparable target client base (Fortune 500 CEOs) and similar premium-pricing, partner-led model.
- Boston Consulting Group: Global strategy consulting firm competing with EY-Parthenon on corporate and growth strategy mandates, with a growing digital/AI practice (BCG X) that competes with EY.ai and EY Studio+.
- Bain & Company: Global management consulting firm competing with EY-Parthenon for enterprise strategy, M&A, and private equity value creation work, with comparable sector depth and C-suite relationships.
- Accenture: Global professional services firm specializing in strategy, consulting, digital, technology, and operations. Overlaps heavily with EY's consulting and technology transformation practices and frequently competes for the same enterprise transformation mandates.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat7 records
Key risks6 records
Key highlights7 records
Customer concentration
Ernst & Young ShinNihon LLC social profiles
Digital presenceErnst & Young ShinNihon LLC compliance and trust
Trust signalCompliance2 records
Ernst & Young ShinNihon LLC financial estimates
Financial estimateRevenue estimate
Valuation estimate
Ernst & Young ShinNihon LLC leadership team
Management profileNumber of profiles
Ernst & Young ShinNihon LLC subsidiaries and ownership
Company hierarchySubsidiaries14 records
Ernst & Young ShinNihon LLC funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Ernst & Young ShinNihon LLC M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Ernst & Young ShinNihon LLC
What does Ernst & Young ShinNihon LLC do?
Ernst & Young ShinNihon LLC is the Japan-based member firm of EY that delivers integrated professional services spanning audit and assurance, tax, management and technology consulting, and strategy and transaction advisory. The firm serves Japanese corporates, multinational clients operating in Japan, and public-sector organizations through a network of more than 10,000 professionals and the global EY methodology, technology, and industry footprint.
Is Ernst & Young ShinNihon LLC a public or private company?
Ernst & Young ShinNihon LLC is a private company. It is classified as corporate owned and is currently operating.
When was Ernst & Young ShinNihon LLC founded?
Ernst & Young ShinNihon LLC was founded in 1989. It employs 5,001 to 10,000 people.
Where is Ernst & Young ShinNihon LLC based?
Ernst & Young ShinNihon LLC is headquartered in London, United Kingdom, in the Europe region.
How does Ernst & Young ShinNihon LLC make money?
Two revenue lines are on record. Professional Services Revenue is the primary driver. The others are managed Services.
Who are Ernst & Young ShinNihon LLC's main competitors?
Direct peers on record are Deloitte, KPMG and PwC. Emerging players are Capgemini, Cognizant and IBM Consulting. Broad incumbents are McKinsey & Company, Boston Consulting Group, Bain & Company and Accenture.
Does Ernst & Young ShinNihon LLC have an API?
No public API is recorded for Ernst & Young ShinNihon LLC.
What industry is Ernst & Young ShinNihon LLC in?
Ernst & Young ShinNihon LLC's product category is Professional Services (Audit, Tax, Consulting, and Strategy & Transactions). Its primary akta.pro industry code is BPAHABAF, Financial Reporting & Technical Accounting Advisory (GAAP/IFRS), with a secondary code of BPAHADAC, M&A Advisory (Buy-side/Sell-side). Its NAICS code is 551 and its SIC code is 8700.